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  - Milenković, Dragan D.
AU  - Milosavljević, Milutin M.
AU  - Marinković, Aleksandar
AU  - Đokić, Veljko
AU  - Mitrović, Jelena Z.
AU  - Bojić, Aleksandar Lj
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2389
AB  - The removal of copper(II) ion from aqueous solution by the granular activated carbon, obtained from hazelnut shells (ACHS) (Corylus avellana L. var. lunga istriana), was investigated. The ACHS was prepared from ground dried hazelnut shells by specific method carbonisation and water steam activation at 950 degrees C for 2 h. The granular activated carbon produced from hazelnut shells has a high specific surface area (1 452 m(2).g(-1)) and highly developed microporous structure (micropore volume: 0.615 cm(3).g(-1)). In batch tests, the influences of solution pH, contact time, initial metal ion concentration and temperature on the sorption of copper(II) ion on ACHS were studied. The results indicate that sorption of copper(II) ion on ACHS strongly depends on pH values. The adsorption data can be well described by the Langmuir isotherm and Redlich-Peterson model. The monolayer adsorption capacity of the ACHS-copper(II) ion, calculated from the Langmuir isotherms, is 3.07 mmol.g(-1). The time-dependent adsorption of copper(II) ion could be described by the pseudo second-order and Elovich kinetics, indicating that the rate-limiting step might be a chemical reaction. The intra-particle diffusion model indicates that adsorption of copper(II) ions on ACHS was diffusion controlled.
PB  - Water Research Commission, Pretoria
T2  - Water Sa
T1  - Removal of copper(II) ion from aqueous solution by high-porosity activated carbon
EP  - 522
IS  - 4
SP  - 515
VL  - 39
DO  - 10.4314/wsa.v39i4.10
ER  - 

@article{
author = "Milenković, Dragan D. and Milosavljević, Milutin M. and Marinković, Aleksandar and Đokić, Veljko and Mitrović, Jelena Z. and Bojić, Aleksandar Lj",
year = "2013",
abstract = "The removal of copper(II) ion from aqueous solution by the granular activated carbon, obtained from hazelnut shells (ACHS) (Corylus avellana L. var. lunga istriana), was investigated. The ACHS was prepared from ground dried hazelnut shells by specific method carbonisation and water steam activation at 950 degrees C for 2 h. The granular activated carbon produced from hazelnut shells has a high specific surface area (1 452 m(2).g(-1)) and highly developed microporous structure (micropore volume: 0.615 cm(3).g(-1)). In batch tests, the influences of solution pH, contact time, initial metal ion concentration and temperature on the sorption of copper(II) ion on ACHS were studied. The results indicate that sorption of copper(II) ion on ACHS strongly depends on pH values. The adsorption data can be well described by the Langmuir isotherm and Redlich-Peterson model. The monolayer adsorption capacity of the ACHS-copper(II) ion, calculated from the Langmuir isotherms, is 3.07 mmol.g(-1). The time-dependent adsorption of copper(II) ion could be described by the pseudo second-order and Elovich kinetics, indicating that the rate-limiting step might be a chemical reaction. The intra-particle diffusion model indicates that adsorption of copper(II) ions on ACHS was diffusion controlled.",
publisher = "Water Research Commission, Pretoria",
journal = "Water Sa",
title = "Removal of copper(II) ion from aqueous solution by high-porosity activated carbon",
pages = "522-515",
number = "4",
volume = "39",
doi = "10.4314/wsa.v39i4.10"
}

Milenković, D. D., Milosavljević, M. M., Marinković, A., Đokić, V., Mitrović, J. Z.,& Bojić, A. L.. (2013). Removal of copper(II) ion from aqueous solution by high-porosity activated carbon. in Water Sa
Water Research Commission, Pretoria., 39(4), 515-522.
https://doi.org/10.4314/wsa.v39i4.10

Milenković DD, Milosavljević MM, Marinković A, Đokić V, Mitrović JZ, Bojić AL. Removal of copper(II) ion from aqueous solution by high-porosity activated carbon. in Water Sa. 2013;39(4):515-522.
doi:10.4314/wsa.v39i4.10 .

Milenković, Dragan D., Milosavljević, Milutin M., Marinković, Aleksandar, Đokić, Veljko, Mitrović, Jelena Z., Bojić, Aleksandar Lj, "Removal of copper(II) ion from aqueous solution by high-porosity activated carbon" in Water Sa, 39, no. 4 (2013):515-522,
https://doi.org/10.4314/wsa.v39i4.10 . .

TY  - JOUR
AU  - Milosavljević, Milutin M.
AU  - Marinković, Aleksandar
AU  - Veljković, Vlada B.
AU  - Milenković, Dragan D.
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2214
AB  - The kinetics of the syntheses of N-alkyl, N,N-dialkyl, and N-(4-substituted phenyl) O-ethyl thioncarbamates from sodium ethyl xanthogenacetate, ten alkylamines, and eight substituted anilines were studied at 25, 30, 35, and 40 A degrees C. The reactions were found to follow second-order kinetics. The kinetic (Arrhenius) parameters, such as the activation energy and the frequency factor, as well as the Eyring parameters, such as the standard entropy, the standard Gibbs energy, and the standard enthalpy of activation, were calculated from the second-order rate constants. The mechanism of the reaction was postulated based on the kinetic studies presented and the optimization of the reaction mechanism using the MOPAC PM6 semi-empirical method.
PB  - Springer Wien, Wien
T2  - Monatshefte Fur Chemie
T1  - Syntheses of N-alkyl, N,N-dialkyl, and N-(4-substituted phenyl) O-ethyl thioncarbamates: a kinetic study
EP  - 49
IS  - 1
SP  - 43
VL  - 143
DO  - 10.1007/s00706-011-0596-1
ER  - 

@article{
author = "Milosavljević, Milutin M. and Marinković, Aleksandar and Veljković, Vlada B. and Milenković, Dragan D.",
year = "2012",
abstract = "The kinetics of the syntheses of N-alkyl, N,N-dialkyl, and N-(4-substituted phenyl) O-ethyl thioncarbamates from sodium ethyl xanthogenacetate, ten alkylamines, and eight substituted anilines were studied at 25, 30, 35, and 40 A degrees C. The reactions were found to follow second-order kinetics. The kinetic (Arrhenius) parameters, such as the activation energy and the frequency factor, as well as the Eyring parameters, such as the standard entropy, the standard Gibbs energy, and the standard enthalpy of activation, were calculated from the second-order rate constants. The mechanism of the reaction was postulated based on the kinetic studies presented and the optimization of the reaction mechanism using the MOPAC PM6 semi-empirical method.",
publisher = "Springer Wien, Wien",
journal = "Monatshefte Fur Chemie",
title = "Syntheses of N-alkyl, N,N-dialkyl, and N-(4-substituted phenyl) O-ethyl thioncarbamates: a kinetic study",
pages = "49-43",
number = "1",
volume = "143",
doi = "10.1007/s00706-011-0596-1"
}

Milosavljević, M. M., Marinković, A., Veljković, V. B.,& Milenković, D. D.. (2012). Syntheses of N-alkyl, N,N-dialkyl, and N-(4-substituted phenyl) O-ethyl thioncarbamates: a kinetic study. in Monatshefte Fur Chemie
Springer Wien, Wien., 143(1), 43-49.
https://doi.org/10.1007/s00706-011-0596-1

Milosavljević MM, Marinković A, Veljković VB, Milenković DD. Syntheses of N-alkyl, N,N-dialkyl, and N-(4-substituted phenyl) O-ethyl thioncarbamates: a kinetic study. in Monatshefte Fur Chemie. 2012;143(1):43-49.
doi:10.1007/s00706-011-0596-1 .

Milosavljević, Milutin M., Marinković, Aleksandar, Veljković, Vlada B., Milenković, Dragan D., "Syntheses of N-alkyl, N,N-dialkyl, and N-(4-substituted phenyl) O-ethyl thioncarbamates: a kinetic study" in Monatshefte Fur Chemie, 143, no. 1 (2012):43-49,
https://doi.org/10.1007/s00706-011-0596-1 . .

TY  - JOUR
AU  - Milosavljević, Milutin M.
AU  - Sovrlić, Milica
AU  - Marinković, Aleksandar
AU  - Milenković, Dragan D.
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1660
AB  - A novel synthesis of N-alkyl and N,N-dialkyl O-ethyl thiocarbamates from diethyl dixanthogenate and primary and secondary amines, using three oxidizing systems, has been developed on the laboratory scale, and the method using sodium hypochlorite has been applied on a semi-industrial scale. The effect of the oxidizing agents, sodium hypochlorite, in-situ-generated peracetic acid, and the manganese(II) acetate/oxygen system on product purity and yield was studied. The results obtained by use of these three methods were compared with those obtained by reaction of sodium ethyl xanthogenacetate and amines, and of sodium ethyl xanthate with amines in the presence of sulfated nickel zeolite catalyst. The reaction mechanism of sodium hypochlorite oxidation has been established on the basis of isolation of reaction intermediates and determination of their structure by use of Fourier-transform infrared, (1)H and (13)C NMR, and mass spectrometric methods. The suggested sodium hypochlorite and manganese(II) acetate/oxygen systems have many advantages in comparison with commercial and catalytically promoted synthetic methods, because they are new ecologically friendly syntheses.
PB  - Springer Wien, Wien
T2  - Monatshefte Fur Chemie
T1  - A synthesis of N-alkyl and N,N-dialkyl O-ethyl thiocarbamates from diethyl dixanthogenate using different oxidants
EP  - 755
IS  - 7
SP  - 749
VL  - 141
DO  - 10.1007/s00706-010-0328-y
ER  - 

@article{
author = "Milosavljević, Milutin M. and Sovrlić, Milica and Marinković, Aleksandar and Milenković, Dragan D.",
year = "2010",
abstract = "A novel synthesis of N-alkyl and N,N-dialkyl O-ethyl thiocarbamates from diethyl dixanthogenate and primary and secondary amines, using three oxidizing systems, has been developed on the laboratory scale, and the method using sodium hypochlorite has been applied on a semi-industrial scale. The effect of the oxidizing agents, sodium hypochlorite, in-situ-generated peracetic acid, and the manganese(II) acetate/oxygen system on product purity and yield was studied. The results obtained by use of these three methods were compared with those obtained by reaction of sodium ethyl xanthogenacetate and amines, and of sodium ethyl xanthate with amines in the presence of sulfated nickel zeolite catalyst. The reaction mechanism of sodium hypochlorite oxidation has been established on the basis of isolation of reaction intermediates and determination of their structure by use of Fourier-transform infrared, (1)H and (13)C NMR, and mass spectrometric methods. The suggested sodium hypochlorite and manganese(II) acetate/oxygen systems have many advantages in comparison with commercial and catalytically promoted synthetic methods, because they are new ecologically friendly syntheses.",
publisher = "Springer Wien, Wien",
journal = "Monatshefte Fur Chemie",
title = "A synthesis of N-alkyl and N,N-dialkyl O-ethyl thiocarbamates from diethyl dixanthogenate using different oxidants",
pages = "755-749",
number = "7",
volume = "141",
doi = "10.1007/s00706-010-0328-y"
}

Milosavljević, M. M., Sovrlić, M., Marinković, A.,& Milenković, D. D.. (2010). A synthesis of N-alkyl and N,N-dialkyl O-ethyl thiocarbamates from diethyl dixanthogenate using different oxidants. in Monatshefte Fur Chemie
Springer Wien, Wien., 141(7), 749-755.
https://doi.org/10.1007/s00706-010-0328-y

Milosavljević MM, Sovrlić M, Marinković A, Milenković DD. A synthesis of N-alkyl and N,N-dialkyl O-ethyl thiocarbamates from diethyl dixanthogenate using different oxidants. in Monatshefte Fur Chemie. 2010;141(7):749-755.
doi:10.1007/s00706-010-0328-y .

Milosavljević, Milutin M., Sovrlić, Milica, Marinković, Aleksandar, Milenković, Dragan D., "A synthesis of N-alkyl and N,N-dialkyl O-ethyl thiocarbamates from diethyl dixanthogenate using different oxidants" in Monatshefte Fur Chemie, 141, no. 7 (2010):749-755,
https://doi.org/10.1007/s00706-010-0328-y . .

TY  - JOUR
AU  - Marinković, Aleksandar
AU  - Milosavljević, Milutin
AU  - Milenković, Dragan D.
AU  - Ivanović, Goran
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1323
AB  - A two-step optimized laboratory synthetic method of zinc dialkyldithiocarbamates is presented. In the course of the first phase, a sodium salt of dialkyldithiocarbamic acid has been synthesized from the dialkylamines, carbon disulfide and sodium hydroxide. The synthesis of zinc dialkyldithiocarbamates was achieved by the precipitation from sodium dialkyldithiocarbamic acid by zinc sulfate under the optimized conditions. The synthesized products have been characterized by FTIR, 1H and 13C NMR, AAS spectroscopic methods, as well as by elemental analysis and melting points. Kinetic studies of the motor oil oxidation inhibited by synthesized compounds have been tested using a standard method.
PB  - Association of the Chemical Engineers of Serbia
T2  - Chemical Industry & Chemical Engineering Quarterly
T1  - The optimization of zinc dialkyldithiocarbamates synthesis and determination of their antioxidant activity
EP  - 255
IS  - 4
SP  - 251
VL  - 14
DO  - 10.2298/CICEQ0804251M
ER  - 

@article{
author = "Marinković, Aleksandar and Milosavljević, Milutin and Milenković, Dragan D. and Ivanović, Goran",
year = "2008",
abstract = "A two-step optimized laboratory synthetic method of zinc dialkyldithiocarbamates is presented. In the course of the first phase, a sodium salt of dialkyldithiocarbamic acid has been synthesized from the dialkylamines, carbon disulfide and sodium hydroxide. The synthesis of zinc dialkyldithiocarbamates was achieved by the precipitation from sodium dialkyldithiocarbamic acid by zinc sulfate under the optimized conditions. The synthesized products have been characterized by FTIR, 1H and 13C NMR, AAS spectroscopic methods, as well as by elemental analysis and melting points. Kinetic studies of the motor oil oxidation inhibited by synthesized compounds have been tested using a standard method.",
publisher = "Association of the Chemical Engineers of Serbia",
journal = "Chemical Industry & Chemical Engineering Quarterly",
title = "The optimization of zinc dialkyldithiocarbamates synthesis and determination of their antioxidant activity",
pages = "255-251",
number = "4",
volume = "14",
doi = "10.2298/CICEQ0804251M"
}

Marinković, A., Milosavljević, M., Milenković, D. D.,& Ivanović, G.. (2008). The optimization of zinc dialkyldithiocarbamates synthesis and determination of their antioxidant activity. in Chemical Industry & Chemical Engineering Quarterly
Association of the Chemical Engineers of Serbia., 14(4), 251-255.
https://doi.org/10.2298/CICEQ0804251M

Marinković A, Milosavljević M, Milenković DD, Ivanović G. The optimization of zinc dialkyldithiocarbamates synthesis and determination of their antioxidant activity. in Chemical Industry & Chemical Engineering Quarterly. 2008;14(4):251-255.
doi:10.2298/CICEQ0804251M .

Marinković, Aleksandar, Milosavljević, Milutin, Milenković, Dragan D., Ivanović, Goran, "The optimization of zinc dialkyldithiocarbamates synthesis and determination of their antioxidant activity" in Chemical Industry & Chemical Engineering Quarterly, 14, no. 4 (2008):251-255,
https://doi.org/10.2298/CICEQ0804251M . .