TY  - JOUR
AU  - Momčilović, Milan Z.
AU  - Onjia, Antonije
AU  - Trajković, Dragana N.
AU  - Kostić, Miloš M.
AU  - Milenković, Dragan D.
AU  - Bojić, Danijela V.
AU  - Bojić, Aleksandar Lj.
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4007
AB  - The shell of Lagenaria vulgaris (LV) plant was used as biosorbent for strontium removal from aqueous solutions. Chemical structure of the biosorbent's surface was characterized by the means of FTIR and Boehm's titrations. SEM-EDX technique was used to study the morphology and elemental composition of the material. The analyses pointed out to abundance of acidic functional groups which are charged in solution and hence responsible for ionic exchange of Sr(II) ions. Sorption was examined by varying initial concentrations of Sr(II) in solutions, sorbent's loadings, pH, and contacting times. Equilibrium of the process was attained in the first 10 min of contacting and followed pseudo-second order and Chrastil's kinetic models. It was established that sorption onto aLVB was heterogenous by nature and fitted well to Freundlich and Sips isotherm models with maximum sorption capacity of 29.55 mg g(-1). Sorption potentail was kept high after six cycles when acidic desorbents were used.
PB  - Elsevier Science Bv, Amsterdam
T2  - Journal of Molecular Liquids
T1  - Experimental and modelling study on strontium removal from aqueous solutions by Lagenaria vulgaris biosorbent
EP  - 344
SP  - 335
VL  - 258
DO  - 10.1016/j.molliq.2018.03.048
ER  - 

@article{
author = "Momčilović, Milan Z. and Onjia, Antonije and Trajković, Dragana N. and Kostić, Miloš M. and Milenković, Dragan D. and Bojić, Danijela V. and Bojić, Aleksandar Lj.",
year = "2018",
abstract = "The shell of Lagenaria vulgaris (LV) plant was used as biosorbent for strontium removal from aqueous solutions. Chemical structure of the biosorbent's surface was characterized by the means of FTIR and Boehm's titrations. SEM-EDX technique was used to study the morphology and elemental composition of the material. The analyses pointed out to abundance of acidic functional groups which are charged in solution and hence responsible for ionic exchange of Sr(II) ions. Sorption was examined by varying initial concentrations of Sr(II) in solutions, sorbent's loadings, pH, and contacting times. Equilibrium of the process was attained in the first 10 min of contacting and followed pseudo-second order and Chrastil's kinetic models. It was established that sorption onto aLVB was heterogenous by nature and fitted well to Freundlich and Sips isotherm models with maximum sorption capacity of 29.55 mg g(-1). Sorption potentail was kept high after six cycles when acidic desorbents were used.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Molecular Liquids",
title = "Experimental and modelling study on strontium removal from aqueous solutions by Lagenaria vulgaris biosorbent",
pages = "344-335",
volume = "258",
doi = "10.1016/j.molliq.2018.03.048"
}

Momčilović, M. Z., Onjia, A., Trajković, D. N., Kostić, M. M., Milenković, D. D., Bojić, D. V.,& Bojić, A. Lj.. (2018). Experimental and modelling study on strontium removal from aqueous solutions by Lagenaria vulgaris biosorbent. in Journal of Molecular Liquids
Elsevier Science Bv, Amsterdam., 258, 335-344.
https://doi.org/10.1016/j.molliq.2018.03.048

Momčilović MZ, Onjia A, Trajković DN, Kostić MM, Milenković DD, Bojić DV, Bojić AL. Experimental and modelling study on strontium removal from aqueous solutions by Lagenaria vulgaris biosorbent. in Journal of Molecular Liquids. 2018;258:335-344.
doi:10.1016/j.molliq.2018.03.048 .

Momčilović, Milan Z., Onjia, Antonije, Trajković, Dragana N., Kostić, Miloš M., Milenković, Dragan D., Bojić, Danijela V., Bojić, Aleksandar Lj., "Experimental and modelling study on strontium removal from aqueous solutions by Lagenaria vulgaris biosorbent" in Journal of Molecular Liquids, 258 (2018):335-344,
https://doi.org/10.1016/j.molliq.2018.03.048 . .

TY  - JOUR
AU  - Momčilović, Milan Z.
AU  - Ranđelović, Marjan S.
AU  - Purenović, Milovan M.
AU  - Đorđević, Jelena S.
AU  - Onjia, Antonije
AU  - Matović, Branko
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3447
AB  - Pollution control and water purification are the main concerns associated with hazardous component eliminations from wastewaters which have inspired the research, among the others, on various clay minerals as useful adsorbents. The aim of this study was to examine morphological, structural, adsorption, and electrochemical characteristics of serpentinite in order to check its potential for removal of cadmium and textile dyes from synthetic waters. SEM technique has provided a detailed insight into the surface morphology of serpentinite indicating irregularly shaped particles and lamellar aggregates which are characteristic of lizardite mineral. Crystal phases detected in composition of serpentinite by using XRD technique are lizardite and tiny amount of periclase. Serpentinite adsorption characteristics were investigated towards Cd2+ and anionic textile dyes (Procion red MX-5B, Procion orange and Ramazol black) in aqueous solutions. The main goal of the study was the reliable removal of hazardous Cd2+ at low initial concentrations (up to 200 mu g/dm(3)). Textile dyes were taken as the models of anionic organic pollutants in water. All the adsorption experiments were carried out in batch conditions by varying initial parameters such as concentration of pollutant, contact time, mass of adsorbent and pH. Based on the obtained results, serpentinite has proven to be efficient adsorbent with removal efficiency over 98% for the selected pollutants. Native serpentinite was further modified in order to obtain forsterite. Electrochemical characteristics of serpentinite and forsterite were examined by using cyclic voltammetry of solution of 0.1 M H2SO4 as acidic supporting electrolyte and K-4[Fe(CN)(6)] which was chosen as a redox model compound. Due to its specific structure, surface groups, morphology, and non-stoichiometric composition, serpentinite and forsterite exhibited prominent electrocatalytic activity.
PB  - Elsevier Science Bv, Amsterdam
T2  - Separation and Purification Technology
T1  - Morpho-structural, adsorption and electrochemical characteristics of serpentinite
EP  - 78
SP  - 72
VL  - 163
DO  - 10.1016/j.seppur.2016.02.042
ER  - 

@article{
author = "Momčilović, Milan Z. and Ranđelović, Marjan S. and Purenović, Milovan M. and Đorđević, Jelena S. and Onjia, Antonije and Matović, Branko",
year = "2016",
abstract = "Pollution control and water purification are the main concerns associated with hazardous component eliminations from wastewaters which have inspired the research, among the others, on various clay minerals as useful adsorbents. The aim of this study was to examine morphological, structural, adsorption, and electrochemical characteristics of serpentinite in order to check its potential for removal of cadmium and textile dyes from synthetic waters. SEM technique has provided a detailed insight into the surface morphology of serpentinite indicating irregularly shaped particles and lamellar aggregates which are characteristic of lizardite mineral. Crystal phases detected in composition of serpentinite by using XRD technique are lizardite and tiny amount of periclase. Serpentinite adsorption characteristics were investigated towards Cd2+ and anionic textile dyes (Procion red MX-5B, Procion orange and Ramazol black) in aqueous solutions. The main goal of the study was the reliable removal of hazardous Cd2+ at low initial concentrations (up to 200 mu g/dm(3)). Textile dyes were taken as the models of anionic organic pollutants in water. All the adsorption experiments were carried out in batch conditions by varying initial parameters such as concentration of pollutant, contact time, mass of adsorbent and pH. Based on the obtained results, serpentinite has proven to be efficient adsorbent with removal efficiency over 98% for the selected pollutants. Native serpentinite was further modified in order to obtain forsterite. Electrochemical characteristics of serpentinite and forsterite were examined by using cyclic voltammetry of solution of 0.1 M H2SO4 as acidic supporting electrolyte and K-4[Fe(CN)(6)] which was chosen as a redox model compound. Due to its specific structure, surface groups, morphology, and non-stoichiometric composition, serpentinite and forsterite exhibited prominent electrocatalytic activity.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Separation and Purification Technology",
title = "Morpho-structural, adsorption and electrochemical characteristics of serpentinite",
pages = "78-72",
volume = "163",
doi = "10.1016/j.seppur.2016.02.042"
}

Momčilović, M. Z., Ranđelović, M. S., Purenović, M. M., Đorđević, J. S., Onjia, A.,& Matović, B.. (2016). Morpho-structural, adsorption and electrochemical characteristics of serpentinite. in Separation and Purification Technology
Elsevier Science Bv, Amsterdam., 163, 72-78.
https://doi.org/10.1016/j.seppur.2016.02.042

Momčilović MZ, Ranđelović MS, Purenović MM, Đorđević JS, Onjia A, Matović B. Morpho-structural, adsorption and electrochemical characteristics of serpentinite. in Separation and Purification Technology. 2016;163:72-78.
doi:10.1016/j.seppur.2016.02.042 .

Momčilović, Milan Z., Ranđelović, Marjan S., Purenović, Milovan M., Đorđević, Jelena S., Onjia, Antonije, Matović, Branko, "Morpho-structural, adsorption and electrochemical characteristics of serpentinite" in Separation and Purification Technology, 163 (2016):72-78,
https://doi.org/10.1016/j.seppur.2016.02.042 . .

TY  - JOUR
AU  - Stojmenović, Marija
AU  - Momčilović, Milan Z.
AU  - Gavrilov, Nemanja M.
AU  - Pašti, Igor A.
AU  - Mentus, Slavko V.
AU  - Jokić, Bojan M.
AU  - Babić, Biljana M.
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5776
AB  - Ordered mesoporous carbon, volume-doped up to 3w.% with Pt, Ru and Pt-Ru nanoparticles was synthesized by evaporation-induced self-assembly method, under acidic conditions. The content of incorporated metal was determined by EDX analysis. The X-ray diffractometry confirmed the existence of highly dispersed metallic phases in doped samples. Specific surface area was determined by N-2-physisorption measurements to range between 452 and 545m(2) g(-1). Raman spectroscopy of investigated materials indicated highly disordered carbon structure with crystallite sizes around 1.4 nm. In a form of thin-layer electrode on glassy carbon support, in 0.1M KOH solution, the prepared materials displayed high activity toward oxygen reduction reaction (ORR) in alkaline media, with onset potentials more positive than -0.10 V vs. SCE. The kinetics of O-2 reduction was found to be affected by both the specific surface area and the concentration of metal dopants. The ethanol tolerance of (Pt, Ru)-doped OMCs was found to be higher than that of common Pt/C ORR catalysts. Presented study provides a new route for the synthesis of active and selective ORR catalysts in alkaline media, being competitive with, or superior to, the existing ones in terms of performance and price. (C) 2014 Elsevier Ltd. All rights reserved.
T2  - Electrochimica Acta
T1  - Incorporation of Pt, Ru and Pt-Ru nanoparticles into ordered mesoporous carbons for efficient oxygen reduction reaction in alkaline media
EP  - 139
SP  - 130
VL  - 153
DO  - 10.1016/j.electacta.2014.11.080
ER  - 

@article{
author = "Stojmenović, Marija and Momčilović, Milan Z. and Gavrilov, Nemanja M. and Pašti, Igor A. and Mentus, Slavko V. and Jokić, Bojan M. and Babić, Biljana M.",
year = "2015",
abstract = "Ordered mesoporous carbon, volume-doped up to 3w.% with Pt, Ru and Pt-Ru nanoparticles was synthesized by evaporation-induced self-assembly method, under acidic conditions. The content of incorporated metal was determined by EDX analysis. The X-ray diffractometry confirmed the existence of highly dispersed metallic phases in doped samples. Specific surface area was determined by N-2-physisorption measurements to range between 452 and 545m(2) g(-1). Raman spectroscopy of investigated materials indicated highly disordered carbon structure with crystallite sizes around 1.4 nm. In a form of thin-layer electrode on glassy carbon support, in 0.1M KOH solution, the prepared materials displayed high activity toward oxygen reduction reaction (ORR) in alkaline media, with onset potentials more positive than -0.10 V vs. SCE. The kinetics of O-2 reduction was found to be affected by both the specific surface area and the concentration of metal dopants. The ethanol tolerance of (Pt, Ru)-doped OMCs was found to be higher than that of common Pt/C ORR catalysts. Presented study provides a new route for the synthesis of active and selective ORR catalysts in alkaline media, being competitive with, or superior to, the existing ones in terms of performance and price. (C) 2014 Elsevier Ltd. All rights reserved.",
journal = "Electrochimica Acta",
title = "Incorporation of Pt, Ru and Pt-Ru nanoparticles into ordered mesoporous carbons for efficient oxygen reduction reaction in alkaline media",
pages = "139-130",
volume = "153",
doi = "10.1016/j.electacta.2014.11.080"
}

Stojmenović, M., Momčilović, M. Z., Gavrilov, N. M., Pašti, I. A., Mentus, S. V., Jokić, B. M.,& Babić, B. M.. (2015). Incorporation of Pt, Ru and Pt-Ru nanoparticles into ordered mesoporous carbons for efficient oxygen reduction reaction in alkaline media. in Electrochimica Acta, 153, 130-139.
https://doi.org/10.1016/j.electacta.2014.11.080

Stojmenović M, Momčilović MZ, Gavrilov NM, Pašti IA, Mentus SV, Jokić BM, Babić BM. Incorporation of Pt, Ru and Pt-Ru nanoparticles into ordered mesoporous carbons for efficient oxygen reduction reaction in alkaline media. in Electrochimica Acta. 2015;153:130-139.
doi:10.1016/j.electacta.2014.11.080 .

Stojmenović, Marija, Momčilović, Milan Z., Gavrilov, Nemanja M., Pašti, Igor A., Mentus, Slavko V., Jokić, Bojan M., Babić, Biljana M., "Incorporation of Pt, Ru and Pt-Ru nanoparticles into ordered mesoporous carbons for efficient oxygen reduction reaction in alkaline media" in Electrochimica Acta, 153 (2015):130-139,
https://doi.org/10.1016/j.electacta.2014.11.080 . .

TY  - JOUR
AU  - Momčilović, Milan Z.
AU  - Ranđelović, Marjan S.
AU  - Purenović, Milovan M.
AU  - Onjia, Antonije
AU  - Babić, Biljana M.
AU  - Matović, Branko
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2737
AB  - Carbon cryogel (CC) has been prepared through sol gel polycondensation of resorcinol with formaldehyde in basic aqueous solution followed by freeze-drying and carbonization. Porous properties of CC analyzed by gravimetric McBain method confirmed the expected surface area and degree of mesoporosity. Obtained powdered material was used for the removal of pesticide imidacloprid from aqueous solutions under regular batch adsorption procedure. A set of several isotherm models including Langmuir, Freundlich, Temkin, Dubinin-Radushkevich, Brouers-Sotolongo, Redlich-Peterson, Sips, Toth, Jovanovic, Hurkins-Jura, Halsey and Radke-Prausnitz model was used for nonlinear fitting of equilibrium data. Several models fitted with quite high correlation coefficients. Bangham and Elovich model fitted suitably for kinetic study indicating that pesticide diffusion into carbons pores is important step which dictates the process rate. Suitability of kinetic models decreased with the increase in adsorbent dosage. Imidacloprid uptake was not influenced by the solution pH.
PB  - Desalination Publ, Hopkinton
T2  - Desalination and Water Treatment
T1  - Synthesis and characterization of resorcinol formaldehyde carbon cryogel as efficient sorbent for imidacloprid removal
EP  - 7316
IS  - 37-39
SP  - 7306
VL  - 52
DO  - 10.1080/19443994.2013.836993
ER  - 

@article{
author = "Momčilović, Milan Z. and Ranđelović, Marjan S. and Purenović, Milovan M. and Onjia, Antonije and Babić, Biljana M. and Matović, Branko",
year = "2014",
abstract = "Carbon cryogel (CC) has been prepared through sol gel polycondensation of resorcinol with formaldehyde in basic aqueous solution followed by freeze-drying and carbonization. Porous properties of CC analyzed by gravimetric McBain method confirmed the expected surface area and degree of mesoporosity. Obtained powdered material was used for the removal of pesticide imidacloprid from aqueous solutions under regular batch adsorption procedure. A set of several isotherm models including Langmuir, Freundlich, Temkin, Dubinin-Radushkevich, Brouers-Sotolongo, Redlich-Peterson, Sips, Toth, Jovanovic, Hurkins-Jura, Halsey and Radke-Prausnitz model was used for nonlinear fitting of equilibrium data. Several models fitted with quite high correlation coefficients. Bangham and Elovich model fitted suitably for kinetic study indicating that pesticide diffusion into carbons pores is important step which dictates the process rate. Suitability of kinetic models decreased with the increase in adsorbent dosage. Imidacloprid uptake was not influenced by the solution pH.",
publisher = "Desalination Publ, Hopkinton",
journal = "Desalination and Water Treatment",
title = "Synthesis and characterization of resorcinol formaldehyde carbon cryogel as efficient sorbent for imidacloprid removal",
pages = "7316-7306",
number = "37-39",
volume = "52",
doi = "10.1080/19443994.2013.836993"
}

Momčilović, M. Z., Ranđelović, M. S., Purenović, M. M., Onjia, A., Babić, B. M.,& Matović, B.. (2014). Synthesis and characterization of resorcinol formaldehyde carbon cryogel as efficient sorbent for imidacloprid removal. in Desalination and Water Treatment
Desalination Publ, Hopkinton., 52(37-39), 7306-7316.
https://doi.org/10.1080/19443994.2013.836993

Momčilović MZ, Ranđelović MS, Purenović MM, Onjia A, Babić BM, Matović B. Synthesis and characterization of resorcinol formaldehyde carbon cryogel as efficient sorbent for imidacloprid removal. in Desalination and Water Treatment. 2014;52(37-39):7306-7316.
doi:10.1080/19443994.2013.836993 .

Momčilović, Milan Z., Ranđelović, Marjan S., Purenović, Milovan M., Onjia, Antonije, Babić, Biljana M., Matović, Branko, "Synthesis and characterization of resorcinol formaldehyde carbon cryogel as efficient sorbent for imidacloprid removal" in Desalination and Water Treatment, 52, no. 37-39 (2014):7306-7316,
https://doi.org/10.1080/19443994.2013.836993 . .

TY  - JOUR
AU  - Momčilović, Milan Z.
AU  - Ranđelović, Marjan S.
AU  - Onjia, Antonije
AU  - Zarubica, Aleksandra R.
AU  - Babić, Biljana M.
AU  - Matović, Branko
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2852
AB  - A resorcinol-formaldehyde carbon cryogel was prepared, characterized and used for the removal of the commonly used herbicide clopyralid from aqueous solutions under varying experimental conditions. The carbon exhibited a relatively high specific surface area, significant mesoporosity and an amorphous structure. The following isotherm models were used to interpret the equilibrium data: the Langmuir, Freundlich, Temkin, Dubinin-Radushkevich, Jovanovic, Hurkins-Jura and the Helsey Model. Several models fitted the data well although the calculated values for q(max) poorly correlated with the experimentally obtained data. The pseudo-first and pseudo-second-order kinetic models, the models of Elovich, Bangham and the intraparticle diffusion model were employed for fitting the kinetic data. The rate of the process was fast at the beginning, although the adsorption equilibrium was not attained before 24 h. The adsorption was found to be pH dependent and favored in acidic solutions.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Study on the efficient removal of clopyralid from water using a resorcinol-formaldehyde carbon cryogel
EP  - 494
IS  - 4
SP  - 481
VL  - 79
DO  - 10.2298/JSC130611151M
ER  - 

@article{
author = "Momčilović, Milan Z. and Ranđelović, Marjan S. and Onjia, Antonije and Zarubica, Aleksandra R. and Babić, Biljana M. and Matović, Branko",
year = "2014",
abstract = "A resorcinol-formaldehyde carbon cryogel was prepared, characterized and used for the removal of the commonly used herbicide clopyralid from aqueous solutions under varying experimental conditions. The carbon exhibited a relatively high specific surface area, significant mesoporosity and an amorphous structure. The following isotherm models were used to interpret the equilibrium data: the Langmuir, Freundlich, Temkin, Dubinin-Radushkevich, Jovanovic, Hurkins-Jura and the Helsey Model. Several models fitted the data well although the calculated values for q(max) poorly correlated with the experimentally obtained data. The pseudo-first and pseudo-second-order kinetic models, the models of Elovich, Bangham and the intraparticle diffusion model were employed for fitting the kinetic data. The rate of the process was fast at the beginning, although the adsorption equilibrium was not attained before 24 h. The adsorption was found to be pH dependent and favored in acidic solutions.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Study on the efficient removal of clopyralid from water using a resorcinol-formaldehyde carbon cryogel",
pages = "494-481",
number = "4",
volume = "79",
doi = "10.2298/JSC130611151M"
}

Momčilović, M. Z., Ranđelović, M. S., Onjia, A., Zarubica, A. R., Babić, B. M.,& Matović, B.. (2014). Study on the efficient removal of clopyralid from water using a resorcinol-formaldehyde carbon cryogel. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 79(4), 481-494.
https://doi.org/10.2298/JSC130611151M

Momčilović MZ, Ranđelović MS, Onjia A, Zarubica AR, Babić BM, Matović B. Study on the efficient removal of clopyralid from water using a resorcinol-formaldehyde carbon cryogel. in Journal of the Serbian Chemical Society. 2014;79(4):481-494.
doi:10.2298/JSC130611151M .

Momčilović, Milan Z., Ranđelović, Marjan S., Onjia, Antonije, Zarubica, Aleksandra R., Babić, Biljana M., Matović, Branko, "Study on the efficient removal of clopyralid from water using a resorcinol-formaldehyde carbon cryogel" in Journal of the Serbian Chemical Society, 79, no. 4 (2014):481-494,
https://doi.org/10.2298/JSC130611151M . .

TY  - JOUR
AU  - Momčilović, Milan Z.
AU  - Ranđelović, Marjan S.
AU  - Zarubica, Aleksandra R.
AU  - Onjia, Antonije
AU  - Kokunešoski, Maja
AU  - Matović, Branko
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2534
AB  - The ordered mesoporous silica SBA-15 was synthesized and used as a template for obtaining mesoporous carbon replicas. Adsorptive removal of pesticide 2,4-dichlorophenoxyacetic acid (2,4-D) from aqueous solutions onto two carbon replicas was investigated. Batch adsorption experiments varied in initial adsorptive concentration, contacting times, solution pH, and adsorbent dosage. Pseudo-first order model, pseudo-second order model, and intraparticle diffusion model were selected to interpret the kinetics of adsorption. Kinetic parameters such as rate constants, equilibrium adsorption capacities and correlation coefficients were calculated and discussed for each model. Equilibrium data were linearly fitted to Langmuir, Freundlich, Tamkin, Dubinin-Radushkevich, Jovanovic, Hurkins-Jura and Halsey isotherm models. It was shown that adsorption of 2,4-D onto two carbon replicas well followed the pseudo-second order kinetic model. Langmuir isotherm represented experimental data in the best way since this model gave the best fit. Adsorption capacity strongly depends on the solution pH and increases at lower pH values.
PB  - Elsevier Science Sa, Lausanne
T2  - Chemical Engineering Journal
T1  - SBA-15 templated mesoporous carbons for 2,4-dichlorophenoxyacetic acid removal
EP  - 283
SP  - 276
VL  - 220
DO  - 10.1016/j.cej.2012.12.024
ER  - 

@article{
author = "Momčilović, Milan Z. and Ranđelović, Marjan S. and Zarubica, Aleksandra R. and Onjia, Antonije and Kokunešoski, Maja and Matović, Branko",
year = "2013",
abstract = "The ordered mesoporous silica SBA-15 was synthesized and used as a template for obtaining mesoporous carbon replicas. Adsorptive removal of pesticide 2,4-dichlorophenoxyacetic acid (2,4-D) from aqueous solutions onto two carbon replicas was investigated. Batch adsorption experiments varied in initial adsorptive concentration, contacting times, solution pH, and adsorbent dosage. Pseudo-first order model, pseudo-second order model, and intraparticle diffusion model were selected to interpret the kinetics of adsorption. Kinetic parameters such as rate constants, equilibrium adsorption capacities and correlation coefficients were calculated and discussed for each model. Equilibrium data were linearly fitted to Langmuir, Freundlich, Tamkin, Dubinin-Radushkevich, Jovanovic, Hurkins-Jura and Halsey isotherm models. It was shown that adsorption of 2,4-D onto two carbon replicas well followed the pseudo-second order kinetic model. Langmuir isotherm represented experimental data in the best way since this model gave the best fit. Adsorption capacity strongly depends on the solution pH and increases at lower pH values.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Chemical Engineering Journal",
title = "SBA-15 templated mesoporous carbons for 2,4-dichlorophenoxyacetic acid removal",
pages = "283-276",
volume = "220",
doi = "10.1016/j.cej.2012.12.024"
}

Momčilović, M. Z., Ranđelović, M. S., Zarubica, A. R., Onjia, A., Kokunešoski, M.,& Matović, B.. (2013). SBA-15 templated mesoporous carbons for 2,4-dichlorophenoxyacetic acid removal. in Chemical Engineering Journal
Elsevier Science Sa, Lausanne., 220, 276-283.
https://doi.org/10.1016/j.cej.2012.12.024

Momčilović MZ, Ranđelović MS, Zarubica AR, Onjia A, Kokunešoski M, Matović B. SBA-15 templated mesoporous carbons for 2,4-dichlorophenoxyacetic acid removal. in Chemical Engineering Journal. 2013;220:276-283.
doi:10.1016/j.cej.2012.12.024 .

Momčilović, Milan Z., Ranđelović, Marjan S., Zarubica, Aleksandra R., Onjia, Antonije, Kokunešoski, Maja, Matović, Branko, "SBA-15 templated mesoporous carbons for 2,4-dichlorophenoxyacetic acid removal" in Chemical Engineering Journal, 220 (2013):276-283,
https://doi.org/10.1016/j.cej.2012.12.024 . .

TY  - JOUR
AU  - Momčilović, Milan Z.
AU  - Maksin, Danijela
AU  - Nastasović, Aleksandra
AU  - Onjia, Antonije
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2287
AB  - Pine cones of European Black pine are utilized as a precursor for obtaining powdered activated carbon. The concentrated phosphoric acid was used as an activating agent. A detailed study of the imidacloprid adsorption onto the obtained material was conducted. In this paper, the adsorption kinetics, the conditions of establishing equilibrium, the impact of the adsorbent mass, and pH of solutions was analyzed. It was concluded that in a short period 90 % of pesticide is removed from model solutions under the applied conditions, while the removal degree is even higher for lower initial concentrations and higher adsorbent masses. It was also elucidated that this pesticide is equally well adsorbed in both acid and basic solutions.
AB  - Šišarka crnog evropskog bora je korišćena kao prekursor za dobijanje praškastog aktivnog uglja. Kao aktivirajuće sredstvo u pripremi je upotrebljena koncentrovana fosforna kiselina. Izvršena je detaljna studija adsorpcije pesticida imidakloprida na sintetizovanom materijalu. U radu je izvršeno ispitivanje kinetike adsorpcije, uslova uspostavljanja ravnoteže procesa, uticaja mase adsorbensa, kao i pH rastvora. Utvrđeno je da se za relativno kratko vreme vrši uklanjanje oko 90 % pesticida iz modalnog rastvora pri ispitivanim uslovima, dok je stepen uklanjanja još veći za niže polazne koncentracije i više mase adsorbensa. Ispitivanjem uticaja pH rastvora utvrđeno je da se pesticid podjednako dobro adsorbuje u kiseloj i u baznoj sredini.
PB  - Univerzitet u Nišu - Tehnološki fakultet, Leskovac
T2  - Savremene tehnologije
T1  - The adsorption of imidacloprid onto activated carbon obtained by carbonization of pine cones
T1  - Adsorpcija imidakloprida na aktivnom uglju dobijenom karbonizacijom borove šišarke
EP  - 49
IS  - 2
SP  - 45
VL  - 2
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2287
ER  - 

@article{
author = "Momčilović, Milan Z. and Maksin, Danijela and Nastasović, Aleksandra and Onjia, Antonije",
year = "2013",
abstract = "Pine cones of European Black pine are utilized as a precursor for obtaining powdered activated carbon. The concentrated phosphoric acid was used as an activating agent. A detailed study of the imidacloprid adsorption onto the obtained material was conducted. In this paper, the adsorption kinetics, the conditions of establishing equilibrium, the impact of the adsorbent mass, and pH of solutions was analyzed. It was concluded that in a short period 90 % of pesticide is removed from model solutions under the applied conditions, while the removal degree is even higher for lower initial concentrations and higher adsorbent masses. It was also elucidated that this pesticide is equally well adsorbed in both acid and basic solutions., Šišarka crnog evropskog bora je korišćena kao prekursor za dobijanje praškastog aktivnog uglja. Kao aktivirajuće sredstvo u pripremi je upotrebljena koncentrovana fosforna kiselina. Izvršena je detaljna studija adsorpcije pesticida imidakloprida na sintetizovanom materijalu. U radu je izvršeno ispitivanje kinetike adsorpcije, uslova uspostavljanja ravnoteže procesa, uticaja mase adsorbensa, kao i pH rastvora. Utvrđeno je da se za relativno kratko vreme vrši uklanjanje oko 90 % pesticida iz modalnog rastvora pri ispitivanim uslovima, dok je stepen uklanjanja još veći za niže polazne koncentracije i više mase adsorbensa. Ispitivanjem uticaja pH rastvora utvrđeno je da se pesticid podjednako dobro adsorbuje u kiseloj i u baznoj sredini.",
publisher = "Univerzitet u Nišu - Tehnološki fakultet, Leskovac",
journal = "Savremene tehnologije",
title = "The adsorption of imidacloprid onto activated carbon obtained by carbonization of pine cones, Adsorpcija imidakloprida na aktivnom uglju dobijenom karbonizacijom borove šišarke",
pages = "49-45",
number = "2",
volume = "2",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2287"
}

Momčilović, M. Z., Maksin, D., Nastasović, A.,& Onjia, A.. (2013). The adsorption of imidacloprid onto activated carbon obtained by carbonization of pine cones. in Savremene tehnologije
Univerzitet u Nišu - Tehnološki fakultet, Leskovac., 2(2), 45-49.
https://hdl.handle.net/21.15107/rcub_technorep_2287

Momčilović MZ, Maksin D, Nastasović A, Onjia A. The adsorption of imidacloprid onto activated carbon obtained by carbonization of pine cones. in Savremene tehnologije. 2013;2(2):45-49.
https://hdl.handle.net/21.15107/rcub_technorep_2287 .

Momčilović, Milan Z., Maksin, Danijela, Nastasović, Aleksandra, Onjia, Antonije, "The adsorption of imidacloprid onto activated carbon obtained by carbonization of pine cones" in Savremene tehnologije, 2, no. 2 (2013):45-49,
https://hdl.handle.net/21.15107/rcub_technorep_2287 .

TY  - JOUR
AU  - Momčilović, Milan Z.
AU  - Onjia, Antonije
AU  - Purenović, Milovan M.
AU  - Zarubica, Aleksandra R.
AU  - Ranđelović, Marjan S.
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2165
AB  - Adsorption of a cationic phenothyazine dye, Methylene Blue onto activated carbon prepared from pinecones was investigated. The parameters contact time, dye concentration and pH were varied. The kinetic data were found to follow closely the pseudo-second-order kinetic model. The equilibrium data were best represented by the Langmuir isotherm with a maximum adsorption capacity of 233.1 mg g(-1). The adsorption was favored by using a higher solution pH. Textural analysis by nitrogen adsorption was used to determine the specific surface area and pore structure of the obtained carbon. Boehm titrations revealed that carboxylic groups were present in a high degree on the carbon surface. The results indicate that the presented method for activation of pinecones could yield activated carbon with significant porosity, a developed surface reactivity and a considerable adsorption affinity toward the cationic dye Methylene Blue.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Removal of a cationic dye from water by activated pinecones
EP  - 774
IS  - 6
SP  - 761
VL  - 77
DO  - 10.2298/JSC110517162M
ER  - 

@article{
author = "Momčilović, Milan Z. and Onjia, Antonije and Purenović, Milovan M. and Zarubica, Aleksandra R. and Ranđelović, Marjan S.",
year = "2012",
abstract = "Adsorption of a cationic phenothyazine dye, Methylene Blue onto activated carbon prepared from pinecones was investigated. The parameters contact time, dye concentration and pH were varied. The kinetic data were found to follow closely the pseudo-second-order kinetic model. The equilibrium data were best represented by the Langmuir isotherm with a maximum adsorption capacity of 233.1 mg g(-1). The adsorption was favored by using a higher solution pH. Textural analysis by nitrogen adsorption was used to determine the specific surface area and pore structure of the obtained carbon. Boehm titrations revealed that carboxylic groups were present in a high degree on the carbon surface. The results indicate that the presented method for activation of pinecones could yield activated carbon with significant porosity, a developed surface reactivity and a considerable adsorption affinity toward the cationic dye Methylene Blue.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Removal of a cationic dye from water by activated pinecones",
pages = "774-761",
number = "6",
volume = "77",
doi = "10.2298/JSC110517162M"
}

Momčilović, M. Z., Onjia, A., Purenović, M. M., Zarubica, A. R.,& Ranđelović, M. S.. (2012). Removal of a cationic dye from water by activated pinecones. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 77(6), 761-774.
https://doi.org/10.2298/JSC110517162M

Momčilović MZ, Onjia A, Purenović MM, Zarubica AR, Ranđelović MS. Removal of a cationic dye from water by activated pinecones. in Journal of the Serbian Chemical Society. 2012;77(6):761-774.
doi:10.2298/JSC110517162M .

Momčilović, Milan Z., Onjia, Antonije, Purenović, Milovan M., Zarubica, Aleksandra R., Ranđelović, Marjan S., "Removal of a cationic dye from water by activated pinecones" in Journal of the Serbian Chemical Society, 77, no. 6 (2012):761-774,
https://doi.org/10.2298/JSC110517162M . .