TY  - JOUR
AU  - Popović, Ana
AU  - Rusmirović, Jelena D.
AU  - Velicković, Zlate
AU  - Kovacević, Tihomir
AU  - Jovanović, Aleksandar
AU  - Cvijetić, Ilija
AU  - Marinković, Aleksandar D.
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/589
AB  - In-depth kinetic and column adsorption study for diclofenac, DCF, heavy-metal and oxyanions adsorption on highly effective amino-functionalized lignin-based microsphere adsorbent (A-LMS) is examined. The A-LMS was synthesized via inverse suspension copolymerization of industrial kraft lignin with the amino containing grafting-agent (polyethylene imine), and an epoxy chloropropane cross-linker. The batch adsorption results indicated process spontaneity and feasibility of a high removal capacity: DCF(151.13) >>Cd2+(74.84)>Cr(VI)(54.20)>As(V)(53.12)>Ni2+(49.42 mg g(-1)). The quantum chemical calculated interaction energies reveal stabilization of the A-LMS/DCF complex through the electrostatics and van der Waals interactions. The results from the pseudo-second order and Weber-Morris fitting indicate a fast removal rate; thus, column tests were undertaken. The single resistance mass transfer model, i.e. the mass transfer (kfa) and diffusion coefficient (Deff), shows pore diffusional transport as a rate limiting step. The fitting of the fixed bed column data with empirical models demonstrates the influences of flow rate and adsorbate inlet concentration on the breakthrough behavior. Pore surface diffusion modeling (PSDM) expresses mass transport under applied hydraulic loading rates, calculated breakthrough point adsorption capacities: Cd2+(58.1)>Cr(VI)(54.1)>As(V)(50.9)>>Ni2+(42.9 mg g(-1))), without performing the experimentation on a full pilot-scale level, further confirms the high applicability of the A-LMS biobased adsorbent.
PB  - Elsevier Science Inc, New York
T2  - Journal of Industrial and Engineering Chemistry
T1  - Kinetics and column adsorption study of diclofenac and heavy-metal ions removal by amino-functionalized lignin microspheres
EP  - 314
SP  - 302
VL  - 93
DO  - 10.1016/j.jiec.2020.10.006
UR  - conv_897
ER  - 

@article{
author = "Popović, Ana and Rusmirović, Jelena D. and Velicković, Zlate and Kovacević, Tihomir and Jovanović, Aleksandar and Cvijetić, Ilija and Marinković, Aleksandar D.",
year = "2021",
abstract = "In-depth kinetic and column adsorption study for diclofenac, DCF, heavy-metal and oxyanions adsorption on highly effective amino-functionalized lignin-based microsphere adsorbent (A-LMS) is examined. The A-LMS was synthesized via inverse suspension copolymerization of industrial kraft lignin with the amino containing grafting-agent (polyethylene imine), and an epoxy chloropropane cross-linker. The batch adsorption results indicated process spontaneity and feasibility of a high removal capacity: DCF(151.13) >>Cd2+(74.84)>Cr(VI)(54.20)>As(V)(53.12)>Ni2+(49.42 mg g(-1)). The quantum chemical calculated interaction energies reveal stabilization of the A-LMS/DCF complex through the electrostatics and van der Waals interactions. The results from the pseudo-second order and Weber-Morris fitting indicate a fast removal rate; thus, column tests were undertaken. The single resistance mass transfer model, i.e. the mass transfer (kfa) and diffusion coefficient (Deff), shows pore diffusional transport as a rate limiting step. The fitting of the fixed bed column data with empirical models demonstrates the influences of flow rate and adsorbate inlet concentration on the breakthrough behavior. Pore surface diffusion modeling (PSDM) expresses mass transport under applied hydraulic loading rates, calculated breakthrough point adsorption capacities: Cd2+(58.1)>Cr(VI)(54.1)>As(V)(50.9)>>Ni2+(42.9 mg g(-1))), without performing the experimentation on a full pilot-scale level, further confirms the high applicability of the A-LMS biobased adsorbent.",
publisher = "Elsevier Science Inc, New York",
journal = "Journal of Industrial and Engineering Chemistry",
title = "Kinetics and column adsorption study of diclofenac and heavy-metal ions removal by amino-functionalized lignin microspheres",
pages = "314-302",
volume = "93",
doi = "10.1016/j.jiec.2020.10.006",
url = "conv_897"
}

Popović, A., Rusmirović, J. D., Velicković, Z., Kovacević, T., Jovanović, A., Cvijetić, I.,& Marinković, A. D.. (2021). Kinetics and column adsorption study of diclofenac and heavy-metal ions removal by amino-functionalized lignin microspheres. in Journal of Industrial and Engineering Chemistry
Elsevier Science Inc, New York., 93, 302-314.
https://doi.org/10.1016/j.jiec.2020.10.006
conv_897

Popović A, Rusmirović JD, Velicković Z, Kovacević T, Jovanović A, Cvijetić I, Marinković AD. Kinetics and column adsorption study of diclofenac and heavy-metal ions removal by amino-functionalized lignin microspheres. in Journal of Industrial and Engineering Chemistry. 2021;93:302-314.
doi:10.1016/j.jiec.2020.10.006
conv_897 .

Popović, Ana, Rusmirović, Jelena D., Velicković, Zlate, Kovacević, Tihomir, Jovanović, Aleksandar, Cvijetić, Ilija, Marinković, Aleksandar D., "Kinetics and column adsorption study of diclofenac and heavy-metal ions removal by amino-functionalized lignin microspheres" in Journal of Industrial and Engineering Chemistry, 93 (2021):302-314,
https://doi.org/10.1016/j.jiec.2020.10.006 .,
conv_897 .

TY  - JOUR
AU  - Milošević, Milena D.
AU  - Daničić, Dunja D.
AU  - Kovačina, Jovanka N.
AU  - Bugarčić, Mladen
AU  - Rusmirović, Jelena D.
AU  - Kovacević, Tihomir
AU  - Marinković, Aleksandar D.
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/499
AB  - U ovom radu prikazana je sinteza antikorozionih aditiva na bazi hemijski modifikovanog tanina i njihova primena u alkidnim premazima u cilju poboljšanja antikorozionih svojstava. Prikazane su dve metode modifikacije tanina: direktna modifikacija tanina primenom amonijum-hidroksida, amonijum-hidroksid/amonijum-hlorid pufera ili dietilentriamina (DETA); i dvostepena modifikacija tanina koja u prvom stupnju uključuje modifikaciju epihlorhidrinom sa ciljem da se dobije tannin sa epoksi terminiranim funkcionalnim grupama, ET, i modifikaciju ET tanina sa heteroaromatičnim aminima ili masnim kiselinama izolovanim iz lanenog ulja (LFA) u drugom stupnju. Sintetisani antikorozioni aditivi su okarakterisani primenom ATR-FTIR, 1H i 13C NMR spektroskopija, i elementalnom analizom. Sadržaj epoksi, amino, hidroksilnih i karboksilnih grupa i vrednost jodnog broja sintetisanih aditiva određen je prema standardnim metodama. Alkidni premazi koji sadrže antikorozione aditive na bazi modifikovanog tanina ispitani su prema standardnoj SRPS EN ISO 4628 metodi. Antikorozivni alkidni premazi na bazi modfikovanih tanina pokazali su poboljšane antikorozione karakteristike i adheziju u poređenju sa alkidnim premazom na bazi cink-fosfata. Alkidni premazi koji sadrže dvostepeno modifikovani tanin sa LFA i 2-amino-5-merkapto-1,3,4-tiadiazolom pokazali su najbolje antikorozione karakteristike.
AB  - The study of the synthesis of anticorrosive inhibitors, based on chemically modified tannins, and their use in alkyd based coatings to improve anticorrosive properties is presented in this work. Two methods of tannin modification were applied: direct method using ammonium hydroxide, ammonium hydroxide/ammonium chloride buffer or diethylenetriamine (DETA); and a two-step method including tannin modification with epichlorohydrin (ECH) in first step to produce epoxy modified tannin, ET, and further modification with heteroaromatic amines or linseed oil fatty acids (LFA) in second step. The obtained anticorrosive additives were characterized using ATR-FTIR, 1H and 13C NMR spectroscopies and elemental analysis. Epoxy, amino, hydroxyl, acid and iodine values of the synthesized inhibitors were determined according to standard methods. The prepared alkyd coating with tannin inhibitors was tested according to standard SRPS EN ISO 4628 method. Anticorrosive coating containing modified tannin based additive showed increased anticorrosive properties, good adhesion and coverage comparing to the coating with zinc phosphate additive. The alkyd coating films based on ET-LFA and ET modified with 2-amino-5-mercapto-1,3,4-thiadiazole showed best anticorrosive results.
PB  - Inženjersko društvo za koroziju, Beograd
T2  - Zaštita materijala
T1  - Primena modifikovanih tanina u antikorozionim alkidnim premazima
T1  - Modified tannins for alkyd based anticorrosive coatings
EP  - 95
IS  - 1
SP  - 81
VL  - 60
DO  - 10.5937/zasmat1901081M
UR  - conv_158
ER  - 

@article{
author = "Milošević, Milena D. and Daničić, Dunja D. and Kovačina, Jovanka N. and Bugarčić, Mladen and Rusmirović, Jelena D. and Kovacević, Tihomir and Marinković, Aleksandar D.",
year = "2019",
abstract = "U ovom radu prikazana je sinteza antikorozionih aditiva na bazi hemijski modifikovanog tanina i njihova primena u alkidnim premazima u cilju poboljšanja antikorozionih svojstava. Prikazane su dve metode modifikacije tanina: direktna modifikacija tanina primenom amonijum-hidroksida, amonijum-hidroksid/amonijum-hlorid pufera ili dietilentriamina (DETA); i dvostepena modifikacija tanina koja u prvom stupnju uključuje modifikaciju epihlorhidrinom sa ciljem da se dobije tannin sa epoksi terminiranim funkcionalnim grupama, ET, i modifikaciju ET tanina sa heteroaromatičnim aminima ili masnim kiselinama izolovanim iz lanenog ulja (LFA) u drugom stupnju. Sintetisani antikorozioni aditivi su okarakterisani primenom ATR-FTIR, 1H i 13C NMR spektroskopija, i elementalnom analizom. Sadržaj epoksi, amino, hidroksilnih i karboksilnih grupa i vrednost jodnog broja sintetisanih aditiva određen je prema standardnim metodama. Alkidni premazi koji sadrže antikorozione aditive na bazi modifikovanog tanina ispitani su prema standardnoj SRPS EN ISO 4628 metodi. Antikorozivni alkidni premazi na bazi modfikovanih tanina pokazali su poboljšane antikorozione karakteristike i adheziju u poređenju sa alkidnim premazom na bazi cink-fosfata. Alkidni premazi koji sadrže dvostepeno modifikovani tanin sa LFA i 2-amino-5-merkapto-1,3,4-tiadiazolom pokazali su najbolje antikorozione karakteristike., The study of the synthesis of anticorrosive inhibitors, based on chemically modified tannins, and their use in alkyd based coatings to improve anticorrosive properties is presented in this work. Two methods of tannin modification were applied: direct method using ammonium hydroxide, ammonium hydroxide/ammonium chloride buffer or diethylenetriamine (DETA); and a two-step method including tannin modification with epichlorohydrin (ECH) in first step to produce epoxy modified tannin, ET, and further modification with heteroaromatic amines or linseed oil fatty acids (LFA) in second step. The obtained anticorrosive additives were characterized using ATR-FTIR, 1H and 13C NMR spectroscopies and elemental analysis. Epoxy, amino, hydroxyl, acid and iodine values of the synthesized inhibitors were determined according to standard methods. The prepared alkyd coating with tannin inhibitors was tested according to standard SRPS EN ISO 4628 method. Anticorrosive coating containing modified tannin based additive showed increased anticorrosive properties, good adhesion and coverage comparing to the coating with zinc phosphate additive. The alkyd coating films based on ET-LFA and ET modified with 2-amino-5-mercapto-1,3,4-thiadiazole showed best anticorrosive results.",
publisher = "Inženjersko društvo za koroziju, Beograd",
journal = "Zaštita materijala",
title = "Primena modifikovanih tanina u antikorozionim alkidnim premazima, Modified tannins for alkyd based anticorrosive coatings",
pages = "95-81",
number = "1",
volume = "60",
doi = "10.5937/zasmat1901081M",
url = "conv_158"
}

Milošević, M. D., Daničić, D. D., Kovačina, J. N., Bugarčić, M., Rusmirović, J. D., Kovacević, T.,& Marinković, A. D.. (2019). Primena modifikovanih tanina u antikorozionim alkidnim premazima. in Zaštita materijala
Inženjersko društvo za koroziju, Beograd., 60(1), 81-95.
https://doi.org/10.5937/zasmat1901081M
conv_158

Milošević MD, Daničić DD, Kovačina JN, Bugarčić M, Rusmirović JD, Kovacević T, Marinković AD. Primena modifikovanih tanina u antikorozionim alkidnim premazima. in Zaštita materijala. 2019;60(1):81-95.
doi:10.5937/zasmat1901081M
conv_158 .

Milošević, Milena D., Daničić, Dunja D., Kovačina, Jovanka N., Bugarčić, Mladen, Rusmirović, Jelena D., Kovacević, Tihomir, Marinković, Aleksandar D., "Primena modifikovanih tanina u antikorozionim alkidnim premazima" in Zaštita materijala, 60, no. 1 (2019):81-95,
https://doi.org/10.5937/zasmat1901081M .,
conv_158 .