TY  - JOUR
AU  - Stanić, Vojislav
AU  - Dimitrijević, Suzana
AU  - Antonović, Dušan
AU  - Jokić, Bojan
AU  - Zec, Slavica
AU  - Tanasković, Slađana
AU  - Raičević, Slavica
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2756
AB  - Synthetic biomaterials based on fluorine substituted hydroxyapatite are potentially attractive for orthopedic and dental implant applications. The new synthesis of fluorine substituted hydroxyapatite samples were done by neutralization, which consists of adding the solution of HF and H3PO4 in suspension of Ca(OH)(2). Characterization studies from XRD, SEM and FTIR spectra showed that crystals are obtained with apatite structure and those particles of all samples are nano size, with an average length of 80 nm and about 15-25 nm in diameter. The central composite design was used in order to determine the optimal conditions for the antimicrobial activity of the synthesized samples. In order to evaluate the influence of operating parameters on the percent of viable cell reduction of Streptococcus mutans, three independent variables were chosen: exposure time, pH of saline and floride concentration in apatite samples. The experimental and predicted antimicrobial activities were in close agreement. Antimicrobial activity of the samples increases with the increase of fluoride concentration and the decreased pH of saline. The maximum antimicrobial activity was achieved at the initial pH of 4.
PB  - Elsevier Science Bv, Amsterdam
T2  - Applied Surface Science
T1  - Synthesis of fluorine substituted hydroxyapatite nanopowders and application of the central composite design for determination of its antimicrobial effects
EP  - 352
SP  - 346
VL  - 290
DO  - 10.1016/j.apsusc.2013.11.081
ER  - 

@article{
author = "Stanić, Vojislav and Dimitrijević, Suzana and Antonović, Dušan and Jokić, Bojan and Zec, Slavica and Tanasković, Slađana and Raičević, Slavica",
year = "2014",
abstract = "Synthetic biomaterials based on fluorine substituted hydroxyapatite are potentially attractive for orthopedic and dental implant applications. The new synthesis of fluorine substituted hydroxyapatite samples were done by neutralization, which consists of adding the solution of HF and H3PO4 in suspension of Ca(OH)(2). Characterization studies from XRD, SEM and FTIR spectra showed that crystals are obtained with apatite structure and those particles of all samples are nano size, with an average length of 80 nm and about 15-25 nm in diameter. The central composite design was used in order to determine the optimal conditions for the antimicrobial activity of the synthesized samples. In order to evaluate the influence of operating parameters on the percent of viable cell reduction of Streptococcus mutans, three independent variables were chosen: exposure time, pH of saline and floride concentration in apatite samples. The experimental and predicted antimicrobial activities were in close agreement. Antimicrobial activity of the samples increases with the increase of fluoride concentration and the decreased pH of saline. The maximum antimicrobial activity was achieved at the initial pH of 4.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Applied Surface Science",
title = "Synthesis of fluorine substituted hydroxyapatite nanopowders and application of the central composite design for determination of its antimicrobial effects",
pages = "352-346",
volume = "290",
doi = "10.1016/j.apsusc.2013.11.081"
}

Stanić, V., Dimitrijević, S., Antonović, D., Jokić, B., Zec, S., Tanasković, S.,& Raičević, S.. (2014). Synthesis of fluorine substituted hydroxyapatite nanopowders and application of the central composite design for determination of its antimicrobial effects. in Applied Surface Science
Elsevier Science Bv, Amsterdam., 290, 346-352.
https://doi.org/10.1016/j.apsusc.2013.11.081

Stanić V, Dimitrijević S, Antonović D, Jokić B, Zec S, Tanasković S, Raičević S. Synthesis of fluorine substituted hydroxyapatite nanopowders and application of the central composite design for determination of its antimicrobial effects. in Applied Surface Science. 2014;290:346-352.
doi:10.1016/j.apsusc.2013.11.081 .

Stanić, Vojislav, Dimitrijević, Suzana, Antonović, Dušan, Jokić, Bojan, Zec, Slavica, Tanasković, Slađana, Raičević, Slavica, "Synthesis of fluorine substituted hydroxyapatite nanopowders and application of the central composite design for determination of its antimicrobial effects" in Applied Surface Science, 290 (2014):346-352,
https://doi.org/10.1016/j.apsusc.2013.11.081 . .

TY  - JOUR
AU  - Stanković, Jelena S.
AU  - Stanić, Vojislav
AU  - Dimitrijević, Suzana
AU  - Mitrić, Miodrag
AU  - Jokić, Bojan
AU  - Plećaš, Ilija B.
AU  - Raičević, Slavica
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1869
PB  - Elsevier Science Bv, Amsterdam
T2  - European Journal of Pharmaceutical Sciences
T1  - Antimicrobial activity of copper and zinc-doped hydroxyapatite nanopowders
EP  - 195
SP  - 195
VL  - 44
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6929
ER  - 

@article{
author = "Stanković, Jelena S. and Stanić, Vojislav and Dimitrijević, Suzana and Mitrić, Miodrag and Jokić, Bojan and Plećaš, Ilija B. and Raičević, Slavica",
year = "2011",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "European Journal of Pharmaceutical Sciences",
title = "Antimicrobial activity of copper and zinc-doped hydroxyapatite nanopowders",
pages = "195-195",
volume = "44",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6929"
}

Stanković, J. S., Stanić, V., Dimitrijević, S., Mitrić, M., Jokić, B., Plećaš, I. B.,& Raičević, S.. (2011). Antimicrobial activity of copper and zinc-doped hydroxyapatite nanopowders. in European Journal of Pharmaceutical Sciences
Elsevier Science Bv, Amsterdam., 44, 195-195.
https://hdl.handle.net/21.15107/rcub_vinar_6929

Stanković JS, Stanić V, Dimitrijević S, Mitrić M, Jokić B, Plećaš IB, Raičević S. Antimicrobial activity of copper and zinc-doped hydroxyapatite nanopowders. in European Journal of Pharmaceutical Sciences. 2011;44:195-195.
https://hdl.handle.net/21.15107/rcub_vinar_6929 .

Stanković, Jelena S., Stanić, Vojislav, Dimitrijević, Suzana, Mitrić, Miodrag, Jokić, Bojan, Plećaš, Ilija B., Raičević, Slavica, "Antimicrobial activity of copper and zinc-doped hydroxyapatite nanopowders" in European Journal of Pharmaceutical Sciences, 44 (2011):195-195,
https://hdl.handle.net/21.15107/rcub_vinar_6929 .

TY  - JOUR
AU  - Stanić, Vojislav
AU  - Janaćković, Đorđe
AU  - Dimitrijević, Suzana
AU  - Tanasković, Slađana
AU  - Mitrić, Miodrag
AU  - Pavlović, Mirjana S.
AU  - Krstić, Aleksandra
AU  - Jovanović, Dragoljub
AU  - Raičević, Slavica
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1932
AB  - Monophase silver-doped hydroxyapatite (AgxCa10-x(PO4)(6)(OH)(2); 0.002  lt = x  lt = 0.04) nanoparticles were prepared using a neutralization method and investigated with respect to potential medical applications. This method consists of dissolving Ag2O in solution of H3PO4, and the slow addition to suspension of Ca(OH)(2) was applied for the purpose of homogenous distribution of silver ions. Characterization studies from XRD, TEM and FTIR spectra showed that obtained crystals are monophase hydroxyapatites and that particles of all samples are of nano size, with average length of 70nm and about 15-25nm in diameter. Antimicrobial studies have demonstrated that all silver-doped hydroxyapatite samples exhibit excellent antimicrobial activity in vitro against the following pathogens: Staphylococcus aureus, Escherichia coli and Candida albicans. The hydroxyapatite sample with the highest content of silver has shown the highest antimicrobial activity; killed all cells of E. coli and brought to more than 99% reduction in viable counts of S. aureus and C. albicans. The atomic force microscopic studies illustrate that silver-doped hydroxyapatite sample causes considerable morphological changes of microorganism cells which might be the cause of cells' death. Hemolysis ratios of the silver-doped hydroxyapatite samples were below 3%, indicating good blood compatibility and that are promising as biomaterials.
PB  - Elsevier, Amsterdam
T2  - Applied Surface Science
T1  - Synthesis of antimicrobial monophase silver-doped hydroxyapatite nanopowders for bone tissue engineering
EP  - 4518
IS  - 9
SP  - 4510
VL  - 257
DO  - 10.1016/j.apsusc.2010.12.113
ER  - 

@article{
author = "Stanić, Vojislav and Janaćković, Đorđe and Dimitrijević, Suzana and Tanasković, Slađana and Mitrić, Miodrag and Pavlović, Mirjana S. and Krstić, Aleksandra and Jovanović, Dragoljub and Raičević, Slavica",
year = "2011",
abstract = "Monophase silver-doped hydroxyapatite (AgxCa10-x(PO4)(6)(OH)(2); 0.002  lt = x  lt = 0.04) nanoparticles were prepared using a neutralization method and investigated with respect to potential medical applications. This method consists of dissolving Ag2O in solution of H3PO4, and the slow addition to suspension of Ca(OH)(2) was applied for the purpose of homogenous distribution of silver ions. Characterization studies from XRD, TEM and FTIR spectra showed that obtained crystals are monophase hydroxyapatites and that particles of all samples are of nano size, with average length of 70nm and about 15-25nm in diameter. Antimicrobial studies have demonstrated that all silver-doped hydroxyapatite samples exhibit excellent antimicrobial activity in vitro against the following pathogens: Staphylococcus aureus, Escherichia coli and Candida albicans. The hydroxyapatite sample with the highest content of silver has shown the highest antimicrobial activity; killed all cells of E. coli and brought to more than 99% reduction in viable counts of S. aureus and C. albicans. The atomic force microscopic studies illustrate that silver-doped hydroxyapatite sample causes considerable morphological changes of microorganism cells which might be the cause of cells' death. Hemolysis ratios of the silver-doped hydroxyapatite samples were below 3%, indicating good blood compatibility and that are promising as biomaterials.",
publisher = "Elsevier, Amsterdam",
journal = "Applied Surface Science",
title = "Synthesis of antimicrobial monophase silver-doped hydroxyapatite nanopowders for bone tissue engineering",
pages = "4518-4510",
number = "9",
volume = "257",
doi = "10.1016/j.apsusc.2010.12.113"
}

Stanić, V., Janaćković, Đ., Dimitrijević, S., Tanasković, S., Mitrić, M., Pavlović, M. S., Krstić, A., Jovanović, D.,& Raičević, S.. (2011). Synthesis of antimicrobial monophase silver-doped hydroxyapatite nanopowders for bone tissue engineering. in Applied Surface Science
Elsevier, Amsterdam., 257(9), 4510-4518.
https://doi.org/10.1016/j.apsusc.2010.12.113

Stanić V, Janaćković Đ, Dimitrijević S, Tanasković S, Mitrić M, Pavlović MS, Krstić A, Jovanović D, Raičević S. Synthesis of antimicrobial monophase silver-doped hydroxyapatite nanopowders for bone tissue engineering. in Applied Surface Science. 2011;257(9):4510-4518.
doi:10.1016/j.apsusc.2010.12.113 .

Stanić, Vojislav, Janaćković, Đorđe, Dimitrijević, Suzana, Tanasković, Slađana, Mitrić, Miodrag, Pavlović, Mirjana S., Krstić, Aleksandra, Jovanović, Dragoljub, Raičević, Slavica, "Synthesis of antimicrobial monophase silver-doped hydroxyapatite nanopowders for bone tissue engineering" in Applied Surface Science, 257, no. 9 (2011):4510-4518,
https://doi.org/10.1016/j.apsusc.2010.12.113 . .

TY  - JOUR
AU  - Kaluđerović-Radoičić, Tatjana
AU  - Raičević, Slavica
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1619
AB  - Natural apatites represent a cost effective soil amendment, which can be used for in situ reduction of lead bioavailability and mobility. In our previous work, we selected Lisina apatite (LA) as a promising natural mineral for lead immobilization based on theoretical predictions. This study investigated the adsorption equilibrium and kinetics of aqueous Pb sorption onto Lisina apatite and synthetic hydroxyapatite (HAP) at different temperatures. XRD analysis indicated that LA consists of three minerals: fluorapatite, quartz and muscovite. After reaction with a Pb solution, only FA peaks were changed, confirming that fluorapatite present in LA is responsible for Pb sorption. Sorption experiments confirmed that both LA and HAP are effective in Pb removal. Langmuir, Freundlich, Temkin, Koble-Corrigan and Redlich-Peterson isotherm models were applied to experimental data. The kinetics of the sorption process on both minerals was well characterized by the pseudo-second order reaction rate. Results indicate that Pb immobilization by HAP is a two-step process: the first rapid phase, possibly surface complexation and secondary dissolution of HAP and precipitation of pyromorphite. The sorption of Pb by Lisina apatite is also a two-step process, but the reaction mechanisms are more complicated and need further research as the results indicate that different mechanisms dominate at different temperatures. The values of thermodynamic equilibrium constants and Gibbs free energy were also calculated. The values of AG obtained confirm the feasibility of both HAP and LA as effective sorbents of the Pb ion.
PB  - Elsevier Science Sa, Lausanne
T2  - Chemical Engineering Journal
T1  - Aqueous Pb sorption by synthetic and natural apatite: Kinetics, equilibrium and thermodynamic studies
EP  - 510
IS  - 2
SP  - 503
VL  - 160
DO  - 10.1016/j.cej.2010.03.061
ER  - 

@article{
author = "Kaluđerović-Radoičić, Tatjana and Raičević, Slavica",
year = "2010",
abstract = "Natural apatites represent a cost effective soil amendment, which can be used for in situ reduction of lead bioavailability and mobility. In our previous work, we selected Lisina apatite (LA) as a promising natural mineral for lead immobilization based on theoretical predictions. This study investigated the adsorption equilibrium and kinetics of aqueous Pb sorption onto Lisina apatite and synthetic hydroxyapatite (HAP) at different temperatures. XRD analysis indicated that LA consists of three minerals: fluorapatite, quartz and muscovite. After reaction with a Pb solution, only FA peaks were changed, confirming that fluorapatite present in LA is responsible for Pb sorption. Sorption experiments confirmed that both LA and HAP are effective in Pb removal. Langmuir, Freundlich, Temkin, Koble-Corrigan and Redlich-Peterson isotherm models were applied to experimental data. The kinetics of the sorption process on both minerals was well characterized by the pseudo-second order reaction rate. Results indicate that Pb immobilization by HAP is a two-step process: the first rapid phase, possibly surface complexation and secondary dissolution of HAP and precipitation of pyromorphite. The sorption of Pb by Lisina apatite is also a two-step process, but the reaction mechanisms are more complicated and need further research as the results indicate that different mechanisms dominate at different temperatures. The values of thermodynamic equilibrium constants and Gibbs free energy were also calculated. The values of AG obtained confirm the feasibility of both HAP and LA as effective sorbents of the Pb ion.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Chemical Engineering Journal",
title = "Aqueous Pb sorption by synthetic and natural apatite: Kinetics, equilibrium and thermodynamic studies",
pages = "510-503",
number = "2",
volume = "160",
doi = "10.1016/j.cej.2010.03.061"
}

Kaluđerović-Radoičić, T.,& Raičević, S.. (2010). Aqueous Pb sorption by synthetic and natural apatite: Kinetics, equilibrium and thermodynamic studies. in Chemical Engineering Journal
Elsevier Science Sa, Lausanne., 160(2), 503-510.
https://doi.org/10.1016/j.cej.2010.03.061

Kaluđerović-Radoičić T, Raičević S. Aqueous Pb sorption by synthetic and natural apatite: Kinetics, equilibrium and thermodynamic studies. in Chemical Engineering Journal. 2010;160(2):503-510.
doi:10.1016/j.cej.2010.03.061 .

Kaluđerović-Radoičić, Tatjana, Raičević, Slavica, "Aqueous Pb sorption by synthetic and natural apatite: Kinetics, equilibrium and thermodynamic studies" in Chemical Engineering Journal, 160, no. 2 (2010):503-510,
https://doi.org/10.1016/j.cej.2010.03.061 . .

TY  - JOUR
AU  - Stanić, Vojislav
AU  - Dimitrijević, Suzana
AU  - Antić-Stanković, Jelena
AU  - Mitrić, Miodrag
AU  - Jokić, Bojan
AU  - Plećaš, Ilija B.
AU  - Raičević, Slavica
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1610
AB  - Antimicrobial materials based on hydroxyapatite are potentially attractive in a wide variety of medical applications. The synthesis of copper and zinc-doped hydroxyapatite was done by neutralization method. This method consists of dissolving CuO or ZnO in solution of H3PO4, and the slow addition to suspension of Ca(OH)(2) for obtaining monophasic product. Characterization studies from XRD, SEM, TEM and FTIR spectra showed that particles of all samples are of nano size and they do not contain any discernible crystalline impurity. The quantitative elemental analysis showed that the copper and zinc ions fully incorporated into the hydroxyapatite. The antimicrobial effects of doped hydroxyapatite powders against pathogen bacterial strains Escherichia coli, Staphylococcus aureus and pathogen yeast Candida albicans were tested in solid and liquid media. Quantitative test in liquid media clearly showed that copper and zinc-doped samples had viable cells reduction ability for all tested strains.
PB  - Elsevier, Amsterdam
T2  - Applied Surface Science
T1  - Synthesis, characterization and antimicrobial activity of copper and zinc-doped hydroxyapatite nanopowders
EP  - 6089
IS  - 20
SP  - 6083
VL  - 256
DO  - 10.1016/j.apsusc.2010.03.124
ER  - 

@article{
author = "Stanić, Vojislav and Dimitrijević, Suzana and Antić-Stanković, Jelena and Mitrić, Miodrag and Jokić, Bojan and Plećaš, Ilija B. and Raičević, Slavica",
year = "2010",
abstract = "Antimicrobial materials based on hydroxyapatite are potentially attractive in a wide variety of medical applications. The synthesis of copper and zinc-doped hydroxyapatite was done by neutralization method. This method consists of dissolving CuO or ZnO in solution of H3PO4, and the slow addition to suspension of Ca(OH)(2) for obtaining monophasic product. Characterization studies from XRD, SEM, TEM and FTIR spectra showed that particles of all samples are of nano size and they do not contain any discernible crystalline impurity. The quantitative elemental analysis showed that the copper and zinc ions fully incorporated into the hydroxyapatite. The antimicrobial effects of doped hydroxyapatite powders against pathogen bacterial strains Escherichia coli, Staphylococcus aureus and pathogen yeast Candida albicans were tested in solid and liquid media. Quantitative test in liquid media clearly showed that copper and zinc-doped samples had viable cells reduction ability for all tested strains.",
publisher = "Elsevier, Amsterdam",
journal = "Applied Surface Science",
title = "Synthesis, characterization and antimicrobial activity of copper and zinc-doped hydroxyapatite nanopowders",
pages = "6089-6083",
number = "20",
volume = "256",
doi = "10.1016/j.apsusc.2010.03.124"
}

Stanić, V., Dimitrijević, S., Antić-Stanković, J., Mitrić, M., Jokić, B., Plećaš, I. B.,& Raičević, S.. (2010). Synthesis, characterization and antimicrobial activity of copper and zinc-doped hydroxyapatite nanopowders. in Applied Surface Science
Elsevier, Amsterdam., 256(20), 6083-6089.
https://doi.org/10.1016/j.apsusc.2010.03.124

Stanić V, Dimitrijević S, Antić-Stanković J, Mitrić M, Jokić B, Plećaš IB, Raičević S. Synthesis, characterization and antimicrobial activity of copper and zinc-doped hydroxyapatite nanopowders. in Applied Surface Science. 2010;256(20):6083-6089.
doi:10.1016/j.apsusc.2010.03.124 .

Stanić, Vojislav, Dimitrijević, Suzana, Antić-Stanković, Jelena, Mitrić, Miodrag, Jokić, Bojan, Plećaš, Ilija B., Raičević, Slavica, "Synthesis, characterization and antimicrobial activity of copper and zinc-doped hydroxyapatite nanopowders" in Applied Surface Science, 256, no. 20 (2010):6083-6089,
https://doi.org/10.1016/j.apsusc.2010.03.124 . .

TY  - JOUR
AU  - Smičiklas, Ivana D.
AU  - Onjia, Antonije
AU  - Raičević, Slavica
AU  - Janaćković, Đorđe
PY  - 2009
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1440
AB  - Recently. it has come to our attention, that a polemical note by Milonjic [S.K. Milonjic, Comments on "factors influencing the removal of divalent cations by hydroxyapatite", J. Hazard. Mater. 162 (2009) 1588-1589]. has been published raising several critical comments on some experimental procedures, as well as the presentation and interpretation of some data found in the cited paper by Smiciklas et al. [L. Smiciklas, A. Onjia. S. Raicevic, Dj. Janackovic, M. Mitric, Factors influencing the removal of divalent cations by hydroxyapatite, J. Hazard. Mater. 152 (2008) 876-884]. Since we have not received any prior copy of this discussion through the process involved in the acceptance of these comments, we now take the opportunity of responding. We have reviewed some scientific papers dealing with cation sorption, in order to demonstrate variety of experimental approaches used for batch sorption tests, regarding solution pH. Finally, we justified experimental methods and data interpretation methods we chose to perform in the mentioned manuscript.
PB  - Elsevier, Amsterdam
T2  - Journal of Hazardous Materials
T1  - Authors' response to comments on "Factors influencing the removal of divalent cations by hydroxyapatite" Discussion
EP  - 562
IS  - 1
SP  - 560
VL  - 168
DO  - 10.1016/j.jhazmat.2009.01.137
ER  - 

@article{
author = "Smičiklas, Ivana D. and Onjia, Antonije and Raičević, Slavica and Janaćković, Đorđe",
year = "2009",
abstract = "Recently. it has come to our attention, that a polemical note by Milonjic [S.K. Milonjic, Comments on "factors influencing the removal of divalent cations by hydroxyapatite", J. Hazard. Mater. 162 (2009) 1588-1589]. has been published raising several critical comments on some experimental procedures, as well as the presentation and interpretation of some data found in the cited paper by Smiciklas et al. [L. Smiciklas, A. Onjia. S. Raicevic, Dj. Janackovic, M. Mitric, Factors influencing the removal of divalent cations by hydroxyapatite, J. Hazard. Mater. 152 (2008) 876-884]. Since we have not received any prior copy of this discussion through the process involved in the acceptance of these comments, we now take the opportunity of responding. We have reviewed some scientific papers dealing with cation sorption, in order to demonstrate variety of experimental approaches used for batch sorption tests, regarding solution pH. Finally, we justified experimental methods and data interpretation methods we chose to perform in the mentioned manuscript.",
publisher = "Elsevier, Amsterdam",
journal = "Journal of Hazardous Materials",
title = "Authors' response to comments on "Factors influencing the removal of divalent cations by hydroxyapatite" Discussion",
pages = "562-560",
number = "1",
volume = "168",
doi = "10.1016/j.jhazmat.2009.01.137"
}

Smičiklas, I. D., Onjia, A., Raičević, S.,& Janaćković, Đ.. (2009). Authors' response to comments on "Factors influencing the removal of divalent cations by hydroxyapatite" Discussion. in Journal of Hazardous Materials
Elsevier, Amsterdam., 168(1), 560-562.
https://doi.org/10.1016/j.jhazmat.2009.01.137

Smičiklas ID, Onjia A, Raičević S, Janaćković Đ. Authors' response to comments on "Factors influencing the removal of divalent cations by hydroxyapatite" Discussion. in Journal of Hazardous Materials. 2009;168(1):560-562.
doi:10.1016/j.jhazmat.2009.01.137 .

Smičiklas, Ivana D., Onjia, Antonije, Raičević, Slavica, Janaćković, Đorđe, "Authors' response to comments on "Factors influencing the removal of divalent cations by hydroxyapatite" Discussion" in Journal of Hazardous Materials, 168, no. 1 (2009):560-562,
https://doi.org/10.1016/j.jhazmat.2009.01.137 . .

TY  - JOUR
AU  - Smičiklas, Ivana D.
AU  - Onjia, Antonije
AU  - Raičević, Slavica
AU  - Janaćković, Đorđe
AU  - Mitrić, Miodrag
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1316
AB  - The effect of pH, contact time, initial metal concentration and presence of common competing cations, on hydroxyapatite (HAP) sorption properties towards Ph2+, Cd2+, Zn2+, and Sr2+ ions was studied and compared using a batch technique. The results strongly indicated the difference between the sorption mechanism of Pb2+ and other investigated cations: the removal of Pb2+ was pH-independent and almost complete in the entire pH range (3-12), while the sorption of Cd2+, Zn2+ and Sr2+ generally increased with an increase of pH; the contact time required for attaining equilibrium was 30 mm for Pb 2+ versus 24h needed for other cations; maximum sorption capacity of HAP sample was found to be an order of magnitude higher for Pb2+ (3.263 mmol/g), than for Cd2+ (0.601 mmol/g), Zn (2+) (0.574 mmol/g) and Sr2+ (0.257 mmol/g); the selectivity of HAP was found to decrease in the order Ph2+ gt  Cd2+ gt  Zn2+ gt  Sr2+ while a decrease of pHpzc, in respect to the value obtained in inert electrolyte, followed the order Cd2+  gt  Zn2+ gt  Ph2+ gt  Sr2+; neither of investigated competing cations (Ca2+, Mg2+, Na+ and K+) influenced Pb2+ immobilization whereas the sorption of other cations was reduced in the presence of Ca2+, in the order Sr2+  gt  Cd2+  gt  Zn (2+). The pseudo-second order kinetic model and Langmuir isotherm have been proposed for modeling kinetic and equilibrium data, respectively. The sorption of all examined metals was followed by Ca2+ release from the HAP crystal lattice and pH decrease. The ion exchange and specific cation sorption mechanisms were anticipated for Cd2+, Zn2+ and Sr2+, while dissolution of HAP followed by precipitation of hydroxypyromorphite (Pb-10(PO4)(6)(OH)(2)) was found to be the main operating mechanism for Pb 2+ immobilization by HAP, with the contribution of specific cation sorption.
PB  - Elsevier, Amsterdam
T2  - Journal of Hazardous Materials
T1  - Factors influencing the removal of divalent cations by hydroxyapatite
EP  - 884
IS  - 2
SP  - 876
VL  - 152
DO  - 10.1016/j.jhazmat.2007.07.056
ER  - 

@article{
author = "Smičiklas, Ivana D. and Onjia, Antonije and Raičević, Slavica and Janaćković, Đorđe and Mitrić, Miodrag",
year = "2008",
abstract = "The effect of pH, contact time, initial metal concentration and presence of common competing cations, on hydroxyapatite (HAP) sorption properties towards Ph2+, Cd2+, Zn2+, and Sr2+ ions was studied and compared using a batch technique. The results strongly indicated the difference between the sorption mechanism of Pb2+ and other investigated cations: the removal of Pb2+ was pH-independent and almost complete in the entire pH range (3-12), while the sorption of Cd2+, Zn2+ and Sr2+ generally increased with an increase of pH; the contact time required for attaining equilibrium was 30 mm for Pb 2+ versus 24h needed for other cations; maximum sorption capacity of HAP sample was found to be an order of magnitude higher for Pb2+ (3.263 mmol/g), than for Cd2+ (0.601 mmol/g), Zn (2+) (0.574 mmol/g) and Sr2+ (0.257 mmol/g); the selectivity of HAP was found to decrease in the order Ph2+ gt  Cd2+ gt  Zn2+ gt  Sr2+ while a decrease of pHpzc, in respect to the value obtained in inert electrolyte, followed the order Cd2+  gt  Zn2+ gt  Ph2+ gt  Sr2+; neither of investigated competing cations (Ca2+, Mg2+, Na+ and K+) influenced Pb2+ immobilization whereas the sorption of other cations was reduced in the presence of Ca2+, in the order Sr2+  gt  Cd2+  gt  Zn (2+). The pseudo-second order kinetic model and Langmuir isotherm have been proposed for modeling kinetic and equilibrium data, respectively. The sorption of all examined metals was followed by Ca2+ release from the HAP crystal lattice and pH decrease. The ion exchange and specific cation sorption mechanisms were anticipated for Cd2+, Zn2+ and Sr2+, while dissolution of HAP followed by precipitation of hydroxypyromorphite (Pb-10(PO4)(6)(OH)(2)) was found to be the main operating mechanism for Pb 2+ immobilization by HAP, with the contribution of specific cation sorption.",
publisher = "Elsevier, Amsterdam",
journal = "Journal of Hazardous Materials",
title = "Factors influencing the removal of divalent cations by hydroxyapatite",
pages = "884-876",
number = "2",
volume = "152",
doi = "10.1016/j.jhazmat.2007.07.056"
}

Smičiklas, I. D., Onjia, A., Raičević, S., Janaćković, Đ.,& Mitrić, M.. (2008). Factors influencing the removal of divalent cations by hydroxyapatite. in Journal of Hazardous Materials
Elsevier, Amsterdam., 152(2), 876-884.
https://doi.org/10.1016/j.jhazmat.2007.07.056

Smičiklas ID, Onjia A, Raičević S, Janaćković Đ, Mitrić M. Factors influencing the removal of divalent cations by hydroxyapatite. in Journal of Hazardous Materials. 2008;152(2):876-884.
doi:10.1016/j.jhazmat.2007.07.056 .

Smičiklas, Ivana D., Onjia, Antonije, Raičević, Slavica, Janaćković, Đorđe, Mitrić, Miodrag, "Factors influencing the removal of divalent cations by hydroxyapatite" in Journal of Hazardous Materials, 152, no. 2 (2008):876-884,
https://doi.org/10.1016/j.jhazmat.2007.07.056 . .

TY  - JOUR
AU  - Kaluđerović-Radoičić, Tatjana
AU  - Raičević, Slavica
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1337
AB  - In this work, mineral apatite was investigated for the remediation of lead contamination. Two different apatite minerals were used: synthetic apatite, Ca10(PO4)6(OH)2 (hereafter denoted as HAP) and natural apatite from Lisina, near Bosilegrad, Serbia (hereafter denoted as LA). Phosphate ore from Lisina deposit consists of 43.3 % apatite in the form of fluorapatite, Ca10(PO4)6(F)2. Sorption properties of HAP and LA were investigated. The results show that both of these minerals are effective in lead removal from the water solution. Sorption capacity of HAP obtained in this experiment is 0.216 mmol Pb/g HAP, while the value for LA is 0.162 mmol Pb/g LA. Modeling of these systems was conducted using Visual Minteq computer program. The values obtained from the computer simulation were compared to experimental values.
PB  - Savez hemijskih inženjera, Beograd
T2  - Chemical Industry & Chemical Engineering Quarterly
T1  - In situ lead stabilization using natural and synthetic apatite
EP  - 271
IS  - 4
SP  - 269
VL  - 14
DO  - 10.2298/CICEQ0804269K
ER  - 

@article{
author = "Kaluđerović-Radoičić, Tatjana and Raičević, Slavica",
year = "2008",
abstract = "In this work, mineral apatite was investigated for the remediation of lead contamination. Two different apatite minerals were used: synthetic apatite, Ca10(PO4)6(OH)2 (hereafter denoted as HAP) and natural apatite from Lisina, near Bosilegrad, Serbia (hereafter denoted as LA). Phosphate ore from Lisina deposit consists of 43.3 % apatite in the form of fluorapatite, Ca10(PO4)6(F)2. Sorption properties of HAP and LA were investigated. The results show that both of these minerals are effective in lead removal from the water solution. Sorption capacity of HAP obtained in this experiment is 0.216 mmol Pb/g HAP, while the value for LA is 0.162 mmol Pb/g LA. Modeling of these systems was conducted using Visual Minteq computer program. The values obtained from the computer simulation were compared to experimental values.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Chemical Industry & Chemical Engineering Quarterly",
title = "In situ lead stabilization using natural and synthetic apatite",
pages = "271-269",
number = "4",
volume = "14",
doi = "10.2298/CICEQ0804269K"
}

Kaluđerović-Radoičić, T.,& Raičević, S.. (2008). In situ lead stabilization using natural and synthetic apatite. in Chemical Industry & Chemical Engineering Quarterly
Savez hemijskih inženjera, Beograd., 14(4), 269-271.
https://doi.org/10.2298/CICEQ0804269K

Kaluđerović-Radoičić T, Raičević S. In situ lead stabilization using natural and synthetic apatite. in Chemical Industry & Chemical Engineering Quarterly. 2008;14(4):269-271.
doi:10.2298/CICEQ0804269K .

Kaluđerović-Radoičić, Tatjana, Raičević, Slavica, "In situ lead stabilization using natural and synthetic apatite" in Chemical Industry & Chemical Engineering Quarterly, 14, no. 4 (2008):269-271,
https://doi.org/10.2298/CICEQ0804269K . .

TY  - CONF
AU  - Smičiklas, Ivana
AU  - Onjia, Antonije
AU  - Raičević, Slavica
AU  - Janaćković, Đorđe
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7120
AB  - Primena hidroksiapatita (HAP-a) u raznim oblastima nauke i tehnologije vrlo je raznovrsna a fizičko-hemijska svojstva prahova moraju se prilagoditi specifičnoj nameni. U ovom radu ispitan je uticaj promena parametara neutralizacionog postupka sinteze (temperature, koncentracije i brzine dodavanja reaktanata, brzine mešanja, vremena starenja taloga i prisustva inertne atmosfere) na svojstva HAP-a, primenom Plackett-Burmanovog eksperimentalnog dizajna. Primenom statističkog softvera izvršeno je poređenje apsolutnih vrednosti efekata parametara sinteze na odgovore sistema kao što su hemijski sastav, kristaličnost, specifična površina i tačka nultog naelektrisanja uzoraka. Utvrđeno je da promena temperature i vremena starenja taloga imaju najviše uticaja na na strukturna i površinska svojstva HAP-a.
PB  - Beograd : Institut tehničkih nauka SANU
C3  - Program i knjiga apstrakata / Šesta konferencija mladih istraživača Nauka i inženjerstvo novih materijala, Beograd, 24–26. decembar 2007
T1  - Uticaj promena parametara neutralizacionog postupka sinteze na fizičko-hemijska svojstva hidroksiapatita
SP  - 20
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7120
ER  - 

@conference{
author = "Smičiklas, Ivana and Onjia, Antonije and Raičević, Slavica and Janaćković, Đorđe",
year = "2007",
abstract = "Primena hidroksiapatita (HAP-a) u raznim oblastima nauke i tehnologije vrlo je raznovrsna a fizičko-hemijska svojstva prahova moraju se prilagoditi specifičnoj nameni. U ovom radu ispitan je uticaj promena parametara neutralizacionog postupka sinteze (temperature, koncentracije i brzine dodavanja reaktanata, brzine mešanja, vremena starenja taloga i prisustva inertne atmosfere) na svojstva HAP-a, primenom Plackett-Burmanovog eksperimentalnog dizajna. Primenom statističkog softvera izvršeno je poređenje apsolutnih vrednosti efekata parametara sinteze na odgovore sistema kao što su hemijski sastav, kristaličnost, specifična površina i tačka nultog naelektrisanja uzoraka. Utvrđeno je da promena temperature i vremena starenja taloga imaju najviše uticaja na na strukturna i površinska svojstva HAP-a.",
publisher = "Beograd : Institut tehničkih nauka SANU",
journal = "Program i knjiga apstrakata / Šesta konferencija mladih istraživača Nauka i inženjerstvo novih materijala, Beograd, 24–26. decembar 2007",
title = "Uticaj promena parametara neutralizacionog postupka sinteze na fizičko-hemijska svojstva hidroksiapatita",
pages = "20",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7120"
}

Smičiklas, I., Onjia, A., Raičević, S.,& Janaćković, Đ.. (2007). Uticaj promena parametara neutralizacionog postupka sinteze na fizičko-hemijska svojstva hidroksiapatita. in Program i knjiga apstrakata / Šesta konferencija mladih istraživača Nauka i inženjerstvo novih materijala, Beograd, 24–26. decembar 2007
Beograd : Institut tehničkih nauka SANU., 20.
https://hdl.handle.net/21.15107/rcub_technorep_7120

Smičiklas I, Onjia A, Raičević S, Janaćković Đ. Uticaj promena parametara neutralizacionog postupka sinteze na fizičko-hemijska svojstva hidroksiapatita. in Program i knjiga apstrakata / Šesta konferencija mladih istraživača Nauka i inženjerstvo novih materijala, Beograd, 24–26. decembar 2007. 2007;:20.
https://hdl.handle.net/21.15107/rcub_technorep_7120 .

Smičiklas, Ivana, Onjia, Antonije, Raičević, Slavica, Janaćković, Đorđe, "Uticaj promena parametara neutralizacionog postupka sinteze na fizičko-hemijska svojstva hidroksiapatita" in Program i knjiga apstrakata / Šesta konferencija mladih istraživača Nauka i inženjerstvo novih materijala, Beograd, 24–26. decembar 2007 (2007):20,
https://hdl.handle.net/21.15107/rcub_technorep_7120 .

TY  - JOUR
AU  - Raičević, Slavica
AU  - Stanić, Vojislav
AU  - Kaluđerović-Radoičić, Tatjana
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1176
AB  - Several approaches for immobilization of arsenic (As) based on the transformation of its soluble forms (compounds) into highly insoluble arsenate apatite Ca-5(AsO4)(3)OH have been proposed. These immobilization techniques are successfully applied in treatment of industrial waste containing As. Quite the contrary, treatment of soil contaminated with As by apatite amendments, instead of immobilization of this toxic element, increases its mobility and bioavailability. The mechanism underlying these opposite effects still remains elusive. Here, the stability analysis of different calcium arsenates: Ca-5(AsO4)(3)OH, Ca-4(AsO4)(2)(OH)(2), Ca-3(AsO4)(2) Ca5H2(AsO4)(2) and CaHASO(4) was performed, which is based on the calculation of the ion-ion interaction potential (IIIP). It has been demonstrated earlier that HIP, representing the main term of the cohesive energy, is a suitable parameter for assessment of mineral stability. According to the results of this analysis, arsenate apatite with IIIP value of -0.578 Ry represents the most stable chemical form among analyzed compounds. Based on this finding, we proposed a mechanism of formation of arsenate apatite in the presence of hydroxyapatite. This mechanism can explain the suitability of this approach for the treatment of industrial waste and its limitations for in situ treatment of soil and water contaminated with As.
PB  - Trans Tech Publications Ltd, Durnten-Zurich
T2  - Research Trends in Contemporary Materials Science
T1  - Theoretical assessment of calcium arsenates stability:Application in the treatment of arsenic contaminated waste
EP  - +
SP  - 131
VL  - 555
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6679
ER  - 

@article{
author = "Raičević, Slavica and Stanić, Vojislav and Kaluđerović-Radoičić, Tatjana",
year = "2007",
abstract = "Several approaches for immobilization of arsenic (As) based on the transformation of its soluble forms (compounds) into highly insoluble arsenate apatite Ca-5(AsO4)(3)OH have been proposed. These immobilization techniques are successfully applied in treatment of industrial waste containing As. Quite the contrary, treatment of soil contaminated with As by apatite amendments, instead of immobilization of this toxic element, increases its mobility and bioavailability. The mechanism underlying these opposite effects still remains elusive. Here, the stability analysis of different calcium arsenates: Ca-5(AsO4)(3)OH, Ca-4(AsO4)(2)(OH)(2), Ca-3(AsO4)(2) Ca5H2(AsO4)(2) and CaHASO(4) was performed, which is based on the calculation of the ion-ion interaction potential (IIIP). It has been demonstrated earlier that HIP, representing the main term of the cohesive energy, is a suitable parameter for assessment of mineral stability. According to the results of this analysis, arsenate apatite with IIIP value of -0.578 Ry represents the most stable chemical form among analyzed compounds. Based on this finding, we proposed a mechanism of formation of arsenate apatite in the presence of hydroxyapatite. This mechanism can explain the suitability of this approach for the treatment of industrial waste and its limitations for in situ treatment of soil and water contaminated with As.",
publisher = "Trans Tech Publications Ltd, Durnten-Zurich",
journal = "Research Trends in Contemporary Materials Science",
title = "Theoretical assessment of calcium arsenates stability:Application in the treatment of arsenic contaminated waste",
pages = "+-131",
volume = "555",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6679"
}

Raičević, S., Stanić, V.,& Kaluđerović-Radoičić, T.. (2007). Theoretical assessment of calcium arsenates stability:Application in the treatment of arsenic contaminated waste. in Research Trends in Contemporary Materials Science
Trans Tech Publications Ltd, Durnten-Zurich., 555, 131-+.
https://hdl.handle.net/21.15107/rcub_vinar_6679

Raičević S, Stanić V, Kaluđerović-Radoičić T. Theoretical assessment of calcium arsenates stability:Application in the treatment of arsenic contaminated waste. in Research Trends in Contemporary Materials Science. 2007;555:131-+.
https://hdl.handle.net/21.15107/rcub_vinar_6679 .

Raičević, Slavica, Stanić, Vojislav, Kaluđerović-Radoičić, Tatjana, "Theoretical assessment of calcium arsenates stability:Application in the treatment of arsenic contaminated waste" in Research Trends in Contemporary Materials Science, 555 (2007):131-+,
https://hdl.handle.net/21.15107/rcub_vinar_6679 .

TY  - JOUR
AU  - Raičević, Slavica
AU  - Stanić, Vojislav
AU  - Kaluđerović-Radoičić, Tatjana
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1017
AB  - Several approaches for immobilization of arsenic (As) based on the transformation of its soluble forms (compounds) into highly insoluble arsenate apatite Ca5(AsO4)3 OH have been proposed. These immobilization techniques are successfully applied in treatment of industrial waste containing As. Quite the contrary, treatment of soil contaminated with As by apatite amendments, instead of immobilization of this toxic element, increases its mobility and bioavailability. The mechanism underlying these opposite effects still remains elusive. Here, the stability analysis of different calcium arsenates: Ca5(AsO4)3OH, Ca4(AsO4)2, Ca3(AsO 4)2 Ca5H2(AsO4) 2 and CaHAsO4 was performed, which is based on the calculation of the ion-ion interaction potential (HIP). It has been demonstrated earlier that IIIP, representing the main term of the cohesive energy, is a suitable parameter for assessment of mineral stability. According to the results of this analysis, arsenate apatite with IIIP value of -0.578 Ry represents the most stable chemical form among analyzed compounds. Based on this finding, we proposed a mechanism of formation of arsenate apatite in the presence of hydroxyapatite. This mechanism can explain the suitability of this approach for the treatment of industrial waste and its limitations for in situ treatment of soil and water contaminated with As.
PB  - 8th Conference of the Yugoslav Materials Research Society
T2  - Materials Science Forum
T1  - Theoretical assessment of calcium arsenates stability: Application in the treatment of arsenic contaminated waste
EP  - 136
SP  - 131
VL  - 555
DO  - 10.4028/0-87849-441-3.131
ER  - 

@article{
author = "Raičević, Slavica and Stanić, Vojislav and Kaluđerović-Radoičić, Tatjana",
year = "2007",
abstract = "Several approaches for immobilization of arsenic (As) based on the transformation of its soluble forms (compounds) into highly insoluble arsenate apatite Ca5(AsO4)3 OH have been proposed. These immobilization techniques are successfully applied in treatment of industrial waste containing As. Quite the contrary, treatment of soil contaminated with As by apatite amendments, instead of immobilization of this toxic element, increases its mobility and bioavailability. The mechanism underlying these opposite effects still remains elusive. Here, the stability analysis of different calcium arsenates: Ca5(AsO4)3OH, Ca4(AsO4)2, Ca3(AsO 4)2 Ca5H2(AsO4) 2 and CaHAsO4 was performed, which is based on the calculation of the ion-ion interaction potential (HIP). It has been demonstrated earlier that IIIP, representing the main term of the cohesive energy, is a suitable parameter for assessment of mineral stability. According to the results of this analysis, arsenate apatite with IIIP value of -0.578 Ry represents the most stable chemical form among analyzed compounds. Based on this finding, we proposed a mechanism of formation of arsenate apatite in the presence of hydroxyapatite. This mechanism can explain the suitability of this approach for the treatment of industrial waste and its limitations for in situ treatment of soil and water contaminated with As.",
publisher = "8th Conference of the Yugoslav Materials Research Society",
journal = "Materials Science Forum",
title = "Theoretical assessment of calcium arsenates stability: Application in the treatment of arsenic contaminated waste",
pages = "136-131",
volume = "555",
doi = "10.4028/0-87849-441-3.131"
}

Raičević, S., Stanić, V.,& Kaluđerović-Radoičić, T.. (2007). Theoretical assessment of calcium arsenates stability: Application in the treatment of arsenic contaminated waste. in Materials Science Forum
8th Conference of the Yugoslav Materials Research Society., 555, 131-136.
https://doi.org/10.4028/0-87849-441-3.131

Raičević S, Stanić V, Kaluđerović-Radoičić T. Theoretical assessment of calcium arsenates stability: Application in the treatment of arsenic contaminated waste. in Materials Science Forum. 2007;555:131-136.
doi:10.4028/0-87849-441-3.131 .

Raičević, Slavica, Stanić, Vojislav, Kaluđerović-Radoičić, Tatjana, "Theoretical assessment of calcium arsenates stability: Application in the treatment of arsenic contaminated waste" in Materials Science Forum, 555 (2007):131-136,
https://doi.org/10.4028/0-87849-441-3.131 . .

TY  - CONF
AU  - Smičiklas, Ivana
AU  - Onjia, Antonije
AU  - Raičević, Slavica
AU  - Janaćković, Đorđe
PY  - 2005
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7121
AB  - Sorption of different ionic species, especially heavy metals, on calcium-hydroxyapatite
Ca10(PO4)6(OH)2, (HAP) and other apatite minerals plays an important role in environmental
chemistry and practical applications of these materials. As HAP particles exhibit pH dependent
surface charge, and the percent of various heavy metals hydrolytic species depend on pH, it is
evident that pH significantly influences sorption processes. ...
PB  - Belgrade : Association of Chemical Engineers
C3  - Book of Abstracts / 1st South East European Congress of Chemical Engineering SEECChE 1, Belgrade, September 25-28, 2005
T1  - The influence of pH on Pb2+, Cd2+, Zn2+ and Sr2+ removal from aqueous solutions by hydroxyapatite
SP  - 66
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7121
ER  - 

@conference{
author = "Smičiklas, Ivana and Onjia, Antonije and Raičević, Slavica and Janaćković, Đorđe",
year = "2005",
abstract = "Sorption of different ionic species, especially heavy metals, on calcium-hydroxyapatite
Ca10(PO4)6(OH)2, (HAP) and other apatite minerals plays an important role in environmental
chemistry and practical applications of these materials. As HAP particles exhibit pH dependent
surface charge, and the percent of various heavy metals hydrolytic species depend on pH, it is
evident that pH significantly influences sorption processes. ...",
publisher = "Belgrade : Association of Chemical Engineers",
journal = "Book of Abstracts / 1st South East European Congress of Chemical Engineering SEECChE 1, Belgrade, September 25-28, 2005",
title = "The influence of pH on Pb2+, Cd2+, Zn2+ and Sr2+ removal from aqueous solutions by hydroxyapatite",
pages = "66",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7121"
}

Smičiklas, I., Onjia, A., Raičević, S.,& Janaćković, Đ.. (2005). The influence of pH on Pb2+, Cd2+, Zn2+ and Sr2+ removal from aqueous solutions by hydroxyapatite. in Book of Abstracts / 1st South East European Congress of Chemical Engineering SEECChE 1, Belgrade, September 25-28, 2005
Belgrade : Association of Chemical Engineers., 66.
https://hdl.handle.net/21.15107/rcub_technorep_7121

Smičiklas I, Onjia A, Raičević S, Janaćković Đ. The influence of pH on Pb2+, Cd2+, Zn2+ and Sr2+ removal from aqueous solutions by hydroxyapatite. in Book of Abstracts / 1st South East European Congress of Chemical Engineering SEECChE 1, Belgrade, September 25-28, 2005. 2005;:66.
https://hdl.handle.net/21.15107/rcub_technorep_7121 .

Smičiklas, Ivana, Onjia, Antonije, Raičević, Slavica, Janaćković, Đorđe, "The influence of pH on Pb2+, Cd2+, Zn2+ and Sr2+ removal from aqueous solutions by hydroxyapatite" in Book of Abstracts / 1st South East European Congress of Chemical Engineering SEECChE 1, Belgrade, September 25-28, 2005 (2005):66,
https://hdl.handle.net/21.15107/rcub_technorep_7121 .

TY  - CONF
AU  - Smičiklas, Ivana D.
AU  - Onjia, Antonije E.
AU  - Raičević, Slavica
AU  - Janaćković, Đorđe
PY  - 2005
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7122
AB  - Sorption capacities and kinetics of toxic heavy metals sorption by synthetic, wellcharacterized, hydroxyapatite (HAP) was studied using the batch technique. Initial concentration
of Pb2+, Zn2+, Cd2+ and Sr2+ solutions, obtained from their nitrate salts, was 2.
10-3 mol/dm3
 for
kinetic experiments. The effect of initial metal concentration (10-4-10-2 mol/dm3
 for Zn2+, Cd2+
and Sr2+ and 10-4-5.
10-2 mol/dm3
 for Pb2+) on the amounts of retained heavy metals was
examined in order to calculate sorption capacities. Initial pH values, in all batches were adjusted
to 5.0 ±0.1. Suspensions of HAP and individual metal solutions were equilibrated on a
horizontal shaker, at the solid to solution ratio of 1:200, at room temperature (20±1o
C). The
suspensions were filtrated and analyzed for residual heavy metal concentration, final pH and the
amount of Ca2+ released into the solution at different time intervals (from 5 minutes up to 2
days) for kinetic and at 24 h for equilibrium studies. Sorption of all examined metals was
followed by Ca2+ release from crystal lattice of HAP, indicating ion-exchange or dissolutionprecipitation mechanisms. The isotherm data were found to be well fitted by linear Langmuir
equation. The sorption of Pb2+ was found to be the most rapid in respect to other cations (for
equilibrium, a contact time of approximately 30 minutes was required for Pb2+ and 24 hours for
Cd2+, Zn2+, and Sr2+). In order to determine the sorption mechanisms and rate constants, two
most widely used kinetics models in sorption processes (pseudo-first and pseudo-second order
equations) have been applied to experimental data. According to correlation coefficients and
calculated values of equilibrium concentrations, the pseudo-second order model was found to be
more appropriate, suggesting that the rate limiting step in heavy metal sorption on HAP involves
valence forces through sharing or exchange of electrons between the sorbent and sorbates.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Programme and the Book of Abstracts / The Seventh Yugoslav Materials Research Society Conference YUCOMAT 2005, Herceg Novi, September 12-16, 2005
T1  - Equilibrium and kinetic studies of heavy metal retention by hydroxyapatite
SP  - 133
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7122
ER  - 

@conference{
author = "Smičiklas, Ivana D. and Onjia, Antonije E. and Raičević, Slavica and Janaćković, Đorđe",
year = "2005",
abstract = "Sorption capacities and kinetics of toxic heavy metals sorption by synthetic, wellcharacterized, hydroxyapatite (HAP) was studied using the batch technique. Initial concentration
of Pb2+, Zn2+, Cd2+ and Sr2+ solutions, obtained from their nitrate salts, was 2.
10-3 mol/dm3
 for
kinetic experiments. The effect of initial metal concentration (10-4-10-2 mol/dm3
 for Zn2+, Cd2+
and Sr2+ and 10-4-5.
10-2 mol/dm3
 for Pb2+) on the amounts of retained heavy metals was
examined in order to calculate sorption capacities. Initial pH values, in all batches were adjusted
to 5.0 ±0.1. Suspensions of HAP and individual metal solutions were equilibrated on a
horizontal shaker, at the solid to solution ratio of 1:200, at room temperature (20±1o
C). The
suspensions were filtrated and analyzed for residual heavy metal concentration, final pH and the
amount of Ca2+ released into the solution at different time intervals (from 5 minutes up to 2
days) for kinetic and at 24 h for equilibrium studies. Sorption of all examined metals was
followed by Ca2+ release from crystal lattice of HAP, indicating ion-exchange or dissolutionprecipitation mechanisms. The isotherm data were found to be well fitted by linear Langmuir
equation. The sorption of Pb2+ was found to be the most rapid in respect to other cations (for
equilibrium, a contact time of approximately 30 minutes was required for Pb2+ and 24 hours for
Cd2+, Zn2+, and Sr2+). In order to determine the sorption mechanisms and rate constants, two
most widely used kinetics models in sorption processes (pseudo-first and pseudo-second order
equations) have been applied to experimental data. According to correlation coefficients and
calculated values of equilibrium concentrations, the pseudo-second order model was found to be
more appropriate, suggesting that the rate limiting step in heavy metal sorption on HAP involves
valence forces through sharing or exchange of electrons between the sorbent and sorbates.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Programme and the Book of Abstracts / The Seventh Yugoslav Materials Research Society Conference YUCOMAT 2005, Herceg Novi, September 12-16, 2005",
title = "Equilibrium and kinetic studies of heavy metal retention by hydroxyapatite",
pages = "133",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7122"
}

Smičiklas, I. D., Onjia, A. E., Raičević, S.,& Janaćković, Đ.. (2005). Equilibrium and kinetic studies of heavy metal retention by hydroxyapatite. in Programme and the Book of Abstracts / The Seventh Yugoslav Materials Research Society Conference YUCOMAT 2005, Herceg Novi, September 12-16, 2005
Belgrade : Institute of Technical Sciences of SASA., 133.
https://hdl.handle.net/21.15107/rcub_technorep_7122

Smičiklas ID, Onjia AE, Raičević S, Janaćković Đ. Equilibrium and kinetic studies of heavy metal retention by hydroxyapatite. in Programme and the Book of Abstracts / The Seventh Yugoslav Materials Research Society Conference YUCOMAT 2005, Herceg Novi, September 12-16, 2005. 2005;:133.
https://hdl.handle.net/21.15107/rcub_technorep_7122 .

Smičiklas, Ivana D., Onjia, Antonije E., Raičević, Slavica, Janaćković, Đorđe, "Equilibrium and kinetic studies of heavy metal retention by hydroxyapatite" in Programme and the Book of Abstracts / The Seventh Yugoslav Materials Research Society Conference YUCOMAT 2005, Herceg Novi, September 12-16, 2005 (2005):133,
https://hdl.handle.net/21.15107/rcub_technorep_7122 .

TY  - JOUR
AU  - Smičiklas, Ivana
AU  - Onjia, Antonije
AU  - Marković, Jelena
AU  - Raičević, Slavica
PY  - 2005
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7233
AB  - Apatites are well known matrix for heavy metal immobilization and remediation of
ground water and contaminated soils. In this work, capacities of different synthetic hydroxyapatite
(HAP) samples for Pb, Cd, Sr and Zn sorption were analyzed, from single metal solutions and their
equimolar mixture. Initial concentration of each metal in single metal solutions and total metal
concentration in the mixture was 10-2 mol/dm3
. Initial pH was adjusted to 5.0 ± 0.1. After 24 h
equilibration of HAP samples with heavy metal solutions (solid/liquid ratio 1:200), the
concentration of metals and of Ca2+ released from crystal lattice, as well as the final pH values were
measured. The selectivity of all samples, regardless of the differences in their compositions,
crystallinities, specific surface areas, points of zero charge and sorption capacities, was as follows:
Pb > Cd > Zn > Sr. The same order was obtained for both single metal solutions and their mixture.
In all cases, the sorption was followed by a decrease in final pH values, which are lower than the
pHPZC values obtained by equilibration of HAP samples with an inert electrolyte (KNO3). A linear
relationship between the amount of metals sorbed and Ca2+ released from HAP was observed. Also,
a correlation between sorption capacities and physicochemical properties of HAP samples was
found.
PB  - Trans Tech Publications
T2  - Materials Science Forum
T1  - Comparison of Hydroxyapatite Sorption Properties Towards Cadmium, Lead, Zinc and Strontium Ions
EP  - 410
SP  - 405
VL  - 494
DO  - 10.4028/www.scientific.net/MSF.494.405
ER  - 

@article{
author = "Smičiklas, Ivana and Onjia, Antonije and Marković, Jelena and Raičević, Slavica",
year = "2005",
abstract = "Apatites are well known matrix for heavy metal immobilization and remediation of
ground water and contaminated soils. In this work, capacities of different synthetic hydroxyapatite
(HAP) samples for Pb, Cd, Sr and Zn sorption were analyzed, from single metal solutions and their
equimolar mixture. Initial concentration of each metal in single metal solutions and total metal
concentration in the mixture was 10-2 mol/dm3
. Initial pH was adjusted to 5.0 ± 0.1. After 24 h
equilibration of HAP samples with heavy metal solutions (solid/liquid ratio 1:200), the
concentration of metals and of Ca2+ released from crystal lattice, as well as the final pH values were
measured. The selectivity of all samples, regardless of the differences in their compositions,
crystallinities, specific surface areas, points of zero charge and sorption capacities, was as follows:
Pb > Cd > Zn > Sr. The same order was obtained for both single metal solutions and their mixture.
In all cases, the sorption was followed by a decrease in final pH values, which are lower than the
pHPZC values obtained by equilibration of HAP samples with an inert electrolyte (KNO3). A linear
relationship between the amount of metals sorbed and Ca2+ released from HAP was observed. Also,
a correlation between sorption capacities and physicochemical properties of HAP samples was
found.",
publisher = "Trans Tech Publications",
journal = "Materials Science Forum",
title = "Comparison of Hydroxyapatite Sorption Properties Towards Cadmium, Lead, Zinc and Strontium Ions",
pages = "410-405",
volume = "494",
doi = "10.4028/www.scientific.net/MSF.494.405"
}

Smičiklas, I., Onjia, A., Marković, J.,& Raičević, S.. (2005). Comparison of Hydroxyapatite Sorption Properties Towards Cadmium, Lead, Zinc and Strontium Ions. in Materials Science Forum
Trans Tech Publications., 494, 405-410.
https://doi.org/10.4028/www.scientific.net/MSF.494.405

Smičiklas I, Onjia A, Marković J, Raičević S. Comparison of Hydroxyapatite Sorption Properties Towards Cadmium, Lead, Zinc and Strontium Ions. in Materials Science Forum. 2005;494:405-410.
doi:10.4028/www.scientific.net/MSF.494.405 .

Smičiklas, Ivana, Onjia, Antonije, Marković, Jelena, Raičević, Slavica, "Comparison of Hydroxyapatite Sorption Properties Towards Cadmium, Lead, Zinc and Strontium Ions" in Materials Science Forum, 494 (2005):405-410,
https://doi.org/10.4028/www.scientific.net/MSF.494.405 . .

TY  - JOUR
AU  - Smičiklas, Ivana D.
AU  - Onjia, Antonije
AU  - Raičević, Slavica
PY  - 2005
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/811
AB  - Physicochemical properties of hydroxyapatite (HAP) synthesized by neutralization method are heavily dependent on the process variables. A Plackett-Burman two-level experimental design was therefore, chosen to screen a large number of variables and to determine their effect on HAP characteristics. The sorption of cadmium ions on HAP was studied as well. Of six selected variables (temperature, mixing speed, reactant concentration, addition rate, presence of inert atmosphere and aging time), temperature has shown the strongest influence on HAP structural and sorption properties. Smaller crystallites, lower crystallinity and higher specific surface area lead to higher sorption of cadmium ions. Room temperature and no aging are preferable conditions for the synthesis of HAP with the highest sorption efficiency.
PB  - Elsevier, Amsterdam
T2  - Separation and Purification Technology
T1  - Experimental design approach in the synthesis of hydroxyapatite by neutralization method
EP  - 102
IS  - 2
SP  - 97
VL  - 44
DO  - 10.1016/j.seppur.2004.12.010
ER  - 

@article{
author = "Smičiklas, Ivana D. and Onjia, Antonije and Raičević, Slavica",
year = "2005",
abstract = "Physicochemical properties of hydroxyapatite (HAP) synthesized by neutralization method are heavily dependent on the process variables. A Plackett-Burman two-level experimental design was therefore, chosen to screen a large number of variables and to determine their effect on HAP characteristics. The sorption of cadmium ions on HAP was studied as well. Of six selected variables (temperature, mixing speed, reactant concentration, addition rate, presence of inert atmosphere and aging time), temperature has shown the strongest influence on HAP structural and sorption properties. Smaller crystallites, lower crystallinity and higher specific surface area lead to higher sorption of cadmium ions. Room temperature and no aging are preferable conditions for the synthesis of HAP with the highest sorption efficiency.",
publisher = "Elsevier, Amsterdam",
journal = "Separation and Purification Technology",
title = "Experimental design approach in the synthesis of hydroxyapatite by neutralization method",
pages = "102-97",
number = "2",
volume = "44",
doi = "10.1016/j.seppur.2004.12.010"
}

Smičiklas, I. D., Onjia, A.,& Raičević, S.. (2005). Experimental design approach in the synthesis of hydroxyapatite by neutralization method. in Separation and Purification Technology
Elsevier, Amsterdam., 44(2), 97-102.
https://doi.org/10.1016/j.seppur.2004.12.010

Smičiklas ID, Onjia A, Raičević S. Experimental design approach in the synthesis of hydroxyapatite by neutralization method. in Separation and Purification Technology. 2005;44(2):97-102.
doi:10.1016/j.seppur.2004.12.010 .

Smičiklas, Ivana D., Onjia, Antonije, Raičević, Slavica, "Experimental design approach in the synthesis of hydroxyapatite by neutralization method" in Separation and Purification Technology, 44, no. 2 (2005):97-102,
https://doi.org/10.1016/j.seppur.2004.12.010 . .

TY  - JOUR
AU  - Raičević, Slavica
AU  - Kaluđerović-Radoičić, Tatjana
AU  - Zouboulis, AI
PY  - 2005
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/754
AB  - The in situ (in place) immobilization of toxic metals, using inexpensive "reactive" amendments, is considered as a simple and cost-effective approach for the treatment of soils, contaminated by the presence of heavy metals, when these soils are difficult or costly to be removed and treated ex situ. Several application studies have demonstrated that the stabilization of contaminated soils and groundwaters by the addition of apatite minerals has the potential to be a successful and widely applicable remediation strategy for the case of Pb, Cd, as well as for other toxic metals, existing in polluted soils. On the other hand, the specific immobilization mechanism(s) of these toxic metals remains rather elusive. The present work involves an interdisciplinary theoretical and experimental approach, designed to gain at the fundamental (molecular) level the understanding of respective mechanisms, considering the immobilization of Pb and Cd by the addition of apatites. The theoretical analysis of stability, regarding the apatite/Pb or apatite/Cd systems and the relevant results of sorption experiments, pointed out two different mechanisms for the immobilization of Pb or Cd by the use of apatites. The possible practical consequences of these findings for the selection/application of natural apatites for the remediation of contaminated soils by the presence of heavy metals have been also discussed.
PB  - Elsevier, Amsterdam
T2  - Journal of Hazardous Materials
T1  - In situ stabilization of toxic metals in polluted soils using phosphates: theoretical prediction and experimental verification
EP  - 53
IS  - 1
SP  - 41
VL  - 117
DO  - 10.1016/j.jhazmat.2004.07.024
ER  - 

@article{
author = "Raičević, Slavica and Kaluđerović-Radoičić, Tatjana and Zouboulis, AI",
year = "2005",
abstract = "The in situ (in place) immobilization of toxic metals, using inexpensive "reactive" amendments, is considered as a simple and cost-effective approach for the treatment of soils, contaminated by the presence of heavy metals, when these soils are difficult or costly to be removed and treated ex situ. Several application studies have demonstrated that the stabilization of contaminated soils and groundwaters by the addition of apatite minerals has the potential to be a successful and widely applicable remediation strategy for the case of Pb, Cd, as well as for other toxic metals, existing in polluted soils. On the other hand, the specific immobilization mechanism(s) of these toxic metals remains rather elusive. The present work involves an interdisciplinary theoretical and experimental approach, designed to gain at the fundamental (molecular) level the understanding of respective mechanisms, considering the immobilization of Pb and Cd by the addition of apatites. The theoretical analysis of stability, regarding the apatite/Pb or apatite/Cd systems and the relevant results of sorption experiments, pointed out two different mechanisms for the immobilization of Pb or Cd by the use of apatites. The possible practical consequences of these findings for the selection/application of natural apatites for the remediation of contaminated soils by the presence of heavy metals have been also discussed.",
publisher = "Elsevier, Amsterdam",
journal = "Journal of Hazardous Materials",
title = "In situ stabilization of toxic metals in polluted soils using phosphates: theoretical prediction and experimental verification",
pages = "53-41",
number = "1",
volume = "117",
doi = "10.1016/j.jhazmat.2004.07.024"
}

Raičević, S., Kaluđerović-Radoičić, T.,& Zouboulis, A.. (2005). In situ stabilization of toxic metals in polluted soils using phosphates: theoretical prediction and experimental verification. in Journal of Hazardous Materials
Elsevier, Amsterdam., 117(1), 41-53.
https://doi.org/10.1016/j.jhazmat.2004.07.024

Raičević S, Kaluđerović-Radoičić T, Zouboulis A. In situ stabilization of toxic metals in polluted soils using phosphates: theoretical prediction and experimental verification. in Journal of Hazardous Materials. 2005;117(1):41-53.
doi:10.1016/j.jhazmat.2004.07.024 .

Raičević, Slavica, Kaluđerović-Radoičić, Tatjana, Zouboulis, AI, "In situ stabilization of toxic metals in polluted soils using phosphates: theoretical prediction and experimental verification" in Journal of Hazardous Materials, 117, no. 1 (2005):41-53,
https://doi.org/10.1016/j.jhazmat.2004.07.024 . .

TY  - CONF
AU  - Smičiklas, Ivana
AU  - Onjia, Antonije
AU  - Raičević, Slavica
PY  - 2004
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7234
AB  - Two hydroxyapatite (HAP) samples of different crystallinity were studied as a
nickel immobilization matrix. Sorption isotherms were obtained by batch equilibration
method, in the concentration range 1.
10-4 – 8.
10-3 mol/dm3
. Low crystalline sample has
sorption capacity of 0.212 mmol/g, and due to its higher specific surface area and
lower Ca/P ratio it was found to be better sorbent for Ni2+ than crystalline HAP
(0.092 mmol/g).
PB  - Belgrade : The Society of Physical Chemists of Serbia
C3  - Physical Chemistry 2004 : proceedings of the 7th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 21-23, 2004, Belgrade
T1  - Sorption of Ni2+ by different synthetic hydroxyapatite
EP  - 741
SP  - 739
VL  - 2
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7234
ER  - 

@conference{
author = "Smičiklas, Ivana and Onjia, Antonije and Raičević, Slavica",
year = "2004",
abstract = "Two hydroxyapatite (HAP) samples of different crystallinity were studied as a
nickel immobilization matrix. Sorption isotherms were obtained by batch equilibration
method, in the concentration range 1.
10-4 – 8.
10-3 mol/dm3
. Low crystalline sample has
sorption capacity of 0.212 mmol/g, and due to its higher specific surface area and
lower Ca/P ratio it was found to be better sorbent for Ni2+ than crystalline HAP
(0.092 mmol/g).",
publisher = "Belgrade : The Society of Physical Chemists of Serbia",
journal = "Physical Chemistry 2004 : proceedings of the 7th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 21-23, 2004, Belgrade",
title = "Sorption of Ni2+ by different synthetic hydroxyapatite",
pages = "741-739",
volume = "2",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7234"
}

Smičiklas, I., Onjia, A.,& Raičević, S.. (2004). Sorption of Ni2+ by different synthetic hydroxyapatite. in Physical Chemistry 2004 : proceedings of the 7th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 21-23, 2004, Belgrade
Belgrade : The Society of Physical Chemists of Serbia., 2, 739-741.
https://hdl.handle.net/21.15107/rcub_technorep_7234

Smičiklas I, Onjia A, Raičević S. Sorption of Ni2+ by different synthetic hydroxyapatite. in Physical Chemistry 2004 : proceedings of the 7th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 21-23, 2004, Belgrade. 2004;2:739-741.
https://hdl.handle.net/21.15107/rcub_technorep_7234 .

Smičiklas, Ivana, Onjia, Antonije, Raičević, Slavica, "Sorption of Ni2+ by different synthetic hydroxyapatite" in Physical Chemistry 2004 : proceedings of the 7th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 21-23, 2004, Belgrade, 2 (2004):739-741,
https://hdl.handle.net/21.15107/rcub_technorep_7234 .

TY  - CONF
AU  - Smičiklas, Ivana
AU  - Onjia, Antonije
AU  - Raičević, Slavica
PY  - 2004
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7204
PB  - Belgrade : Serbian Chemical Society
C3  - Book of abstracts, General Topics & Plenary Lectures / 4th International Conference of the Chemical Societies of the South-East European Countries - ICOSECS 4, July, 18-21, 2004, Belgrade, Serbia and Montenegro on Chemical Sciences in Changing Times: Visions, Challenges and Solutions
T1  - Cadmium sorption capacity as a function of hydroxyapatite physico-chemical properties
SP  - 50
VL  - 1
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7204
ER  - 

@conference{
author = "Smičiklas, Ivana and Onjia, Antonije and Raičević, Slavica",
year = "2004",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Book of abstracts, General Topics & Plenary Lectures / 4th International Conference of the Chemical Societies of the South-East European Countries - ICOSECS 4, July, 18-21, 2004, Belgrade, Serbia and Montenegro on Chemical Sciences in Changing Times: Visions, Challenges and Solutions",
title = "Cadmium sorption capacity as a function of hydroxyapatite physico-chemical properties",
pages = "50",
volume = "1",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7204"
}

Smičiklas, I., Onjia, A.,& Raičević, S.. (2004). Cadmium sorption capacity as a function of hydroxyapatite physico-chemical properties. in Book of abstracts, General Topics & Plenary Lectures / 4th International Conference of the Chemical Societies of the South-East European Countries - ICOSECS 4, July, 18-21, 2004, Belgrade, Serbia and Montenegro on Chemical Sciences in Changing Times: Visions, Challenges and Solutions
Belgrade : Serbian Chemical Society., 1, 50.
https://hdl.handle.net/21.15107/rcub_technorep_7204

Smičiklas I, Onjia A, Raičević S. Cadmium sorption capacity as a function of hydroxyapatite physico-chemical properties. in Book of abstracts, General Topics & Plenary Lectures / 4th International Conference of the Chemical Societies of the South-East European Countries - ICOSECS 4, July, 18-21, 2004, Belgrade, Serbia and Montenegro on Chemical Sciences in Changing Times: Visions, Challenges and Solutions. 2004;1:50.
https://hdl.handle.net/21.15107/rcub_technorep_7204 .

Smičiklas, Ivana, Onjia, Antonije, Raičević, Slavica, "Cadmium sorption capacity as a function of hydroxyapatite physico-chemical properties" in Book of abstracts, General Topics & Plenary Lectures / 4th International Conference of the Chemical Societies of the South-East European Countries - ICOSECS 4, July, 18-21, 2004, Belgrade, Serbia and Montenegro on Chemical Sciences in Changing Times: Visions, Challenges and Solutions, 1 (2004):50,
https://hdl.handle.net/21.15107/rcub_technorep_7204 .

TY  - CONF
AU  - Kaluđerović, Tatjana
AU  - Duduković, Aleksandar
AU  - Raičević, Slavica
PY  - 2002
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/496
AB  - Stability of the solid matrix - contaminant system represents a crucial parameter in selection of the appropriate natural material for in situ remediation of the environment contaminated by toxic heavy metals. We have investigated, using a calculation of cohesive energy, suitability of different natural materials which are appropriate for in situ remediation of soil and water contaminated by Pb. Based on the applied theoretical criterion we have selected a natural apatite from the Lisina deposit (Bosilegrad, Yugoslavia) as a promising solid matrix for large-scale remediation and prevention of pollution by Pb in a cost-effective manner.
PB  - Grafima Loannis Tsarouchidis, Thessaloniki
C3  - Protection and Restoration of the Environment Vi, Vols I - III, Proceedings
T1  - Selection of natural materials for In situ remediation and prevention of environment contamination by lead
EP  - 488
SP  - 483
UR  - https://hdl.handle.net/21.15107/rcub_technorep_496
ER  - 

@conference{
author = "Kaluđerović, Tatjana and Duduković, Aleksandar and Raičević, Slavica",
year = "2002",
abstract = "Stability of the solid matrix - contaminant system represents a crucial parameter in selection of the appropriate natural material for in situ remediation of the environment contaminated by toxic heavy metals. We have investigated, using a calculation of cohesive energy, suitability of different natural materials which are appropriate for in situ remediation of soil and water contaminated by Pb. Based on the applied theoretical criterion we have selected a natural apatite from the Lisina deposit (Bosilegrad, Yugoslavia) as a promising solid matrix for large-scale remediation and prevention of pollution by Pb in a cost-effective manner.",
publisher = "Grafima Loannis Tsarouchidis, Thessaloniki",
journal = "Protection and Restoration of the Environment Vi, Vols I - III, Proceedings",
title = "Selection of natural materials for In situ remediation and prevention of environment contamination by lead",
pages = "488-483",
url = "https://hdl.handle.net/21.15107/rcub_technorep_496"
}

Kaluđerović, T., Duduković, A.,& Raičević, S.. (2002). Selection of natural materials for In situ remediation and prevention of environment contamination by lead. in Protection and Restoration of the Environment Vi, Vols I - III, Proceedings
Grafima Loannis Tsarouchidis, Thessaloniki., 483-488.
https://hdl.handle.net/21.15107/rcub_technorep_496

Kaluđerović T, Duduković A, Raičević S. Selection of natural materials for In situ remediation and prevention of environment contamination by lead. in Protection and Restoration of the Environment Vi, Vols I - III, Proceedings. 2002;:483-488.
https://hdl.handle.net/21.15107/rcub_technorep_496 .

Kaluđerović, Tatjana, Duduković, Aleksandar, Raičević, Slavica, "Selection of natural materials for In situ remediation and prevention of environment contamination by lead" in Protection and Restoration of the Environment Vi, Vols I - III, Proceedings (2002):483-488,
https://hdl.handle.net/21.15107/rcub_technorep_496 .

TY  - JOUR
AU  - Kaluđerović, Tatjana
AU  - Duduković, Aleksandar
AU  - Raičević, Slavica
PY  - 2001
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/362
AB  - Lead contamination is an environmental concern due to its effect on human health. One of the ways of remediating lead contamination is the in situ stabilization of this heavy metal. This can be achieved by converting different types of lead species into Pb-phosphates (pyromorphites), which are among the least soluble Pb-bearing solids. Synthetic hydroxyapatite (Ca5(PO4)3OH) and natural apatite can be used for this purpose. Both hydroxyapatite and some natural apatites are effective in reducing the aqueous Pb concentration to below 15 μgT1 (EPA drinking water limit). The main mechanism in the case of hydroxyapatite is its dissolution and subsequent precipitation of pyromorphites. The mechanism and the effectiveness of natural apatites depend on the type of apatite, its composition, crystallinity and presence of impurities. Apatites are also effective in reducing the Pb concentration in leachets from contaminated soils in the pH range from 6 to 10. The percentage of Pb concentration reduction is from 60 to 99.9% depending on the type of contamination and type of apatite amendment applied. These data suggest that apatites have potential to provide cost-effective in situ Pb immobilization.
AB  - Ljudske aktivnosti su dovele do promene distribucije i oblika u kojem se nalaze različiti elementi, uključujući olovo. Olovo je pretvoreno iz nereaktivnog, geohemijski stabilnog oblika u rastvorljiva jedinjenja te je tako postalo dostupno za biosferu. Jedan od mogućih pristupa saniranju zagađenja olovom je promena smera ovog procesa, odnosno transformacija reaktivnih i rastvornih jedinjenja ovog metala u stabilnije oblike. Ovim procesom se olovo ne ukljanja iz životne sredine, ali se sprečava njegova akumulacija u biosferi. Jedan od materijala koji se ispituju za korišćenje u ovu svrhu je sintetički hidroksiapatit (Ca5(PO4)3OH) i prirodni apatit. Ovi materijali omogućavaju formiranje Pb-fosfata (piromorfita) koji su veoma slabo rastvorljivi i u skladu sa tim, slabo dostupni biosferi. Korišćenje obe ove vrste apatita omogućava snižavanje koncentracije olova u vodenim rastvorima ispod 15 μgT1, što je gornja granica za pijacu vodu Američke agencije za zaštitu životne sredine (EPA). U slučaju hidroksiapatita osnovni mehanizam ovog procesa je njegovo rastvaranje i taloženje piromorfita. Efikasnost prirodnog apatita mnogo zavisi od sastava minerala, stepena kristaličnosti i količine prisutnih nečistoća. Mehanizam stabilizacije olova prirodnim apatitom nije u potpunosti utvrđen. Postoje dokazi koji potvrđuju mehanizam rastvaranje apatita i taloženja piromorfita, ali potrebna su dalja istraživanja u ovoj oblasti. Apatiti su takođe efikasni u smanjivanju koncentracije rastvorljivog olova u zagađenom zemljištu u opsegu pH od 6 do 10. Ovo smanjenje se kreće od 60 do 99.9 % u zavisnosti od vrste zagađenja i primenjenog apatita. Ovi podaci ukazuju da apatiti mogu biti korišćeni za in situ stabilizaciju olova.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Remediation of environment contaminated by lead using synthetic and natural apatites
T1  - Stabilizacija zagađenja olovom korišćenjem sintetičkih i prirodnih apatita
EP  - 119
IS  - 3
SP  - 114
VL  - 55
UR  - https://hdl.handle.net/21.15107/rcub_technorep_362
ER  - 

@article{
author = "Kaluđerović, Tatjana and Duduković, Aleksandar and Raičević, Slavica",
year = "2001",
abstract = "Lead contamination is an environmental concern due to its effect on human health. One of the ways of remediating lead contamination is the in situ stabilization of this heavy metal. This can be achieved by converting different types of lead species into Pb-phosphates (pyromorphites), which are among the least soluble Pb-bearing solids. Synthetic hydroxyapatite (Ca5(PO4)3OH) and natural apatite can be used for this purpose. Both hydroxyapatite and some natural apatites are effective in reducing the aqueous Pb concentration to below 15 μgT1 (EPA drinking water limit). The main mechanism in the case of hydroxyapatite is its dissolution and subsequent precipitation of pyromorphites. The mechanism and the effectiveness of natural apatites depend on the type of apatite, its composition, crystallinity and presence of impurities. Apatites are also effective in reducing the Pb concentration in leachets from contaminated soils in the pH range from 6 to 10. The percentage of Pb concentration reduction is from 60 to 99.9% depending on the type of contamination and type of apatite amendment applied. These data suggest that apatites have potential to provide cost-effective in situ Pb immobilization., Ljudske aktivnosti su dovele do promene distribucije i oblika u kojem se nalaze različiti elementi, uključujući olovo. Olovo je pretvoreno iz nereaktivnog, geohemijski stabilnog oblika u rastvorljiva jedinjenja te je tako postalo dostupno za biosferu. Jedan od mogućih pristupa saniranju zagađenja olovom je promena smera ovog procesa, odnosno transformacija reaktivnih i rastvornih jedinjenja ovog metala u stabilnije oblike. Ovim procesom se olovo ne ukljanja iz životne sredine, ali se sprečava njegova akumulacija u biosferi. Jedan od materijala koji se ispituju za korišćenje u ovu svrhu je sintetički hidroksiapatit (Ca5(PO4)3OH) i prirodni apatit. Ovi materijali omogućavaju formiranje Pb-fosfata (piromorfita) koji su veoma slabo rastvorljivi i u skladu sa tim, slabo dostupni biosferi. Korišćenje obe ove vrste apatita omogućava snižavanje koncentracije olova u vodenim rastvorima ispod 15 μgT1, što je gornja granica za pijacu vodu Američke agencije za zaštitu životne sredine (EPA). U slučaju hidroksiapatita osnovni mehanizam ovog procesa je njegovo rastvaranje i taloženje piromorfita. Efikasnost prirodnog apatita mnogo zavisi od sastava minerala, stepena kristaličnosti i količine prisutnih nečistoća. Mehanizam stabilizacije olova prirodnim apatitom nije u potpunosti utvrđen. Postoje dokazi koji potvrđuju mehanizam rastvaranje apatita i taloženja piromorfita, ali potrebna su dalja istraživanja u ovoj oblasti. Apatiti su takođe efikasni u smanjivanju koncentracije rastvorljivog olova u zagađenom zemljištu u opsegu pH od 6 do 10. Ovo smanjenje se kreće od 60 do 99.9 % u zavisnosti od vrste zagađenja i primenjenog apatita. Ovi podaci ukazuju da apatiti mogu biti korišćeni za in situ stabilizaciju olova.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Remediation of environment contaminated by lead using synthetic and natural apatites, Stabilizacija zagađenja olovom korišćenjem sintetičkih i prirodnih apatita",
pages = "119-114",
number = "3",
volume = "55",
url = "https://hdl.handle.net/21.15107/rcub_technorep_362"
}

Kaluđerović, T., Duduković, A.,& Raičević, S.. (2001). Remediation of environment contaminated by lead using synthetic and natural apatites. in Hemijska industrija
Association of Chemical Engineers of Serbia., 55(3), 114-119.
https://hdl.handle.net/21.15107/rcub_technorep_362

Kaluđerović T, Duduković A, Raičević S. Remediation of environment contaminated by lead using synthetic and natural apatites. in Hemijska industrija. 2001;55(3):114-119.
https://hdl.handle.net/21.15107/rcub_technorep_362 .

Kaluđerović, Tatjana, Duduković, Aleksandar, Raičević, Slavica, "Remediation of environment contaminated by lead using synthetic and natural apatites" in Hemijska industrija, 55, no. 3 (2001):114-119,
https://hdl.handle.net/21.15107/rcub_technorep_362 .

TY  - JOUR
AU  - Kaluđerović, Tatjana
AU  - Duduković, Aleksandar
AU  - Raičević, Slavica
PY  - 2001
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/347
AB  - Lead contamination is an environmental concern due to its effect on human health. One of the ways of remediating lead contamination is the in situ stabilization of this heavy metal. This can be achieved by converting different types of lead species into Pb-phosphates (pyromorphites), which are among the least soluble Pb-bearing solids. Synthetic hydroxyapatite (Ca5(PO4)3OH) and natural apatite can be used for this purpose. Both hydroxyapatite and some natural apatites are effective in reducing the aqueous Pb concentration to below 15 µgl-1 (EPA drinking water limit). The main mechanism in the case of hydroxyapatite is its dissolution and subsequent precipitation of pyromorphites. The mechanism and the effectiveness of natural apatites depend on the type of apatite, its composition, crystallinity and presence of impurities. Apatites are also effective in reducing the Pb concentration in leachets from contaminated soils in the pH range from 6 to 10. The percentage of Pb concentration reduction is from 60 to 99.9% depending on the type of contamination and type of apatite amendment applied. These data suggest that apatites have potential to provide cost-effective in situ Pb immobilization.
PB  - Association of the Chemical Engineers of Serbia
T2  - Chemical Industry & Chemical Engineering Quarterly
T1  - Remediation of environment contaminated by lead using synthetic and natural apatites
T1  - Stabilizacija zagađenja olovom korišćenjem sintetičkih i prirodnih apatita
EP  - 119
IS  - 1
SP  - 114
VL  - 7
UR  - https://hdl.handle.net/21.15107/rcub_technorep_347
ER  - 

@article{
author = "Kaluđerović, Tatjana and Duduković, Aleksandar and Raičević, Slavica",
year = "2001",
abstract = "Lead contamination is an environmental concern due to its effect on human health. One of the ways of remediating lead contamination is the in situ stabilization of this heavy metal. This can be achieved by converting different types of lead species into Pb-phosphates (pyromorphites), which are among the least soluble Pb-bearing solids. Synthetic hydroxyapatite (Ca5(PO4)3OH) and natural apatite can be used for this purpose. Both hydroxyapatite and some natural apatites are effective in reducing the aqueous Pb concentration to below 15 µgl-1 (EPA drinking water limit). The main mechanism in the case of hydroxyapatite is its dissolution and subsequent precipitation of pyromorphites. The mechanism and the effectiveness of natural apatites depend on the type of apatite, its composition, crystallinity and presence of impurities. Apatites are also effective in reducing the Pb concentration in leachets from contaminated soils in the pH range from 6 to 10. The percentage of Pb concentration reduction is from 60 to 99.9% depending on the type of contamination and type of apatite amendment applied. These data suggest that apatites have potential to provide cost-effective in situ Pb immobilization.",
publisher = "Association of the Chemical Engineers of Serbia",
journal = "Chemical Industry & Chemical Engineering Quarterly",
title = "Remediation of environment contaminated by lead using synthetic and natural apatites, Stabilizacija zagađenja olovom korišćenjem sintetičkih i prirodnih apatita",
pages = "119-114",
number = "1",
volume = "7",
url = "https://hdl.handle.net/21.15107/rcub_technorep_347"
}

Kaluđerović, T., Duduković, A.,& Raičević, S.. (2001). Remediation of environment contaminated by lead using synthetic and natural apatites. in Chemical Industry & Chemical Engineering Quarterly
Association of the Chemical Engineers of Serbia., 7(1), 114-119.
https://hdl.handle.net/21.15107/rcub_technorep_347

Kaluđerović T, Duduković A, Raičević S. Remediation of environment contaminated by lead using synthetic and natural apatites. in Chemical Industry & Chemical Engineering Quarterly. 2001;7(1):114-119.
https://hdl.handle.net/21.15107/rcub_technorep_347 .

Kaluđerović, Tatjana, Duduković, Aleksandar, Raičević, Slavica, "Remediation of environment contaminated by lead using synthetic and natural apatites" in Chemical Industry & Chemical Engineering Quarterly, 7, no. 1 (2001):114-119,
https://hdl.handle.net/21.15107/rcub_technorep_347 .