Equilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymers
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Аутори
Maksin, Danijela D.Nastasović, Aleksandra B.
Milutinović-Nikolić, Aleksandra D.
Suručić, Ljiljana T.
Sandić, Zvjezdana
Hercigonja, Radmila V.
Onjia, Antonije E.
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Two porous and one non-porous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) [abbreviated PGME] were prepared by suspension copolymerization and functionalized with diethylene triamine [abbreviated PGME-deta]. Samples were characterized by elemental analysis, mercury porosimetry, scanning electron microscopy with energy-dispersive X-ray spectroscopy, and transmission electron microscopy. Kinetics of Cr(VI) sorption by PGME-deta were investigated in batch static experiments, in the temperature range 25-70 degrees C. Sorption was rapid, with the uptake capacity higher than 80% after 30 min. Sorption behavior and rate-controlling mechanisms were analyzed using five kinetic models (pseudo-first order, pseudo-second order, Elovich, intraparticle diffusion and Bangham model). Kinetic studies showed that Cr(VI) adsorption adhered to the pseudo-second-order model, with definite influence of pore diffusion. Equilibrium data was tested with Langmuir, Freundlich and Tem...pkin adsorption isotherm models. Langmuir model was the most suitable indicating homogeneous distribution of active sites on PGME-deta and monolayer sorption. The maximum adsorption capacity from the Langmuir model, Q(max),at pH 1.8 and 25 degrees C was 143 mg g(-1) for PGME2-deta (sample with the highest amino group concentration) while at 70 degrees C Q(max) reached the high value of 198 mg g(-1). Thermodynamic parameters revealed spontaneous and endothermic nature of Cr(VI) adsorption onto PGME-deta. (C) 2012 Elsevier B.V. All rights reserved.
Кључне речи:
Chromium(VI) sorption / Glycidyl methacrylate / Diethylene triamine / Sorption kinetics / Equilibrium isothermsИзвор:
Journal of Hazardous Materials, 2012, 209, 99-110Финансирање / пројекти:
- Нове технологије за мониторинг и заштиту животног окружења од штетних хемијских супстанци и радијационог оптерећења (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43009)
- Наноструктурни функционални и композитни материјали у каталитичким и сорпционим процесима (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45001)
- Порозни материјали на бази оксида у заштити животне средине од генотоксичних супстанци (RS-MESTD-Basic Research (BR or ON)-172018)
DOI: 10.1016/j.jhazmat.2011.12.079
ISSN: 0304-3894
PubMed: 22284173
WoS: 000301884700013
Scopus: 2-s2.0-84857369138
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Институција/група
VinčaTY - JOUR AU - Maksin, Danijela D. AU - Nastasović, Aleksandra B. AU - Milutinović-Nikolić, Aleksandra D. AU - Suručić, Ljiljana T. AU - Sandić, Zvjezdana AU - Hercigonja, Radmila V. AU - Onjia, Antonije E. PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4756 AB - Two porous and one non-porous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) [abbreviated PGME] were prepared by suspension copolymerization and functionalized with diethylene triamine [abbreviated PGME-deta]. Samples were characterized by elemental analysis, mercury porosimetry, scanning electron microscopy with energy-dispersive X-ray spectroscopy, and transmission electron microscopy. Kinetics of Cr(VI) sorption by PGME-deta were investigated in batch static experiments, in the temperature range 25-70 degrees C. Sorption was rapid, with the uptake capacity higher than 80% after 30 min. Sorption behavior and rate-controlling mechanisms were analyzed using five kinetic models (pseudo-first order, pseudo-second order, Elovich, intraparticle diffusion and Bangham model). Kinetic studies showed that Cr(VI) adsorption adhered to the pseudo-second-order model, with definite influence of pore diffusion. Equilibrium data was tested with Langmuir, Freundlich and Tempkin adsorption isotherm models. Langmuir model was the most suitable indicating homogeneous distribution of active sites on PGME-deta and monolayer sorption. The maximum adsorption capacity from the Langmuir model, Q(max),at pH 1.8 and 25 degrees C was 143 mg g(-1) for PGME2-deta (sample with the highest amino group concentration) while at 70 degrees C Q(max) reached the high value of 198 mg g(-1). Thermodynamic parameters revealed spontaneous and endothermic nature of Cr(VI) adsorption onto PGME-deta. (C) 2012 Elsevier B.V. All rights reserved. T2 - Journal of Hazardous Materials T1 - Equilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymers VL - 209 SP - 99 EP - 110 DO - 10.1016/j.jhazmat.2011.12.079 ER -
@article{ author = "Maksin, Danijela D. and Nastasović, Aleksandra B. and Milutinović-Nikolić, Aleksandra D. and Suručić, Ljiljana T. and Sandić, Zvjezdana and Hercigonja, Radmila V. and Onjia, Antonije E.", year = "2012", abstract = "Two porous and one non-porous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) [abbreviated PGME] were prepared by suspension copolymerization and functionalized with diethylene triamine [abbreviated PGME-deta]. Samples were characterized by elemental analysis, mercury porosimetry, scanning electron microscopy with energy-dispersive X-ray spectroscopy, and transmission electron microscopy. Kinetics of Cr(VI) sorption by PGME-deta were investigated in batch static experiments, in the temperature range 25-70 degrees C. Sorption was rapid, with the uptake capacity higher than 80% after 30 min. Sorption behavior and rate-controlling mechanisms were analyzed using five kinetic models (pseudo-first order, pseudo-second order, Elovich, intraparticle diffusion and Bangham model). Kinetic studies showed that Cr(VI) adsorption adhered to the pseudo-second-order model, with definite influence of pore diffusion. Equilibrium data was tested with Langmuir, Freundlich and Tempkin adsorption isotherm models. Langmuir model was the most suitable indicating homogeneous distribution of active sites on PGME-deta and monolayer sorption. The maximum adsorption capacity from the Langmuir model, Q(max),at pH 1.8 and 25 degrees C was 143 mg g(-1) for PGME2-deta (sample with the highest amino group concentration) while at 70 degrees C Q(max) reached the high value of 198 mg g(-1). Thermodynamic parameters revealed spontaneous and endothermic nature of Cr(VI) adsorption onto PGME-deta. (C) 2012 Elsevier B.V. All rights reserved.", journal = "Journal of Hazardous Materials", title = "Equilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymers", volume = "209", pages = "99-110", doi = "10.1016/j.jhazmat.2011.12.079" }
Maksin, D. D., Nastasović, A. B., Milutinović-Nikolić, A. D., Suručić, L. T., Sandić, Z., Hercigonja, R. V.,& Onjia, A. E.. (2012). Equilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymers. in Journal of Hazardous Materials, 209, 99-110. https://doi.org/10.1016/j.jhazmat.2011.12.079
Maksin DD, Nastasović AB, Milutinović-Nikolić AD, Suručić LT, Sandić Z, Hercigonja RV, Onjia AE. Equilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymers. in Journal of Hazardous Materials. 2012;209:99-110. doi:10.1016/j.jhazmat.2011.12.079 .
Maksin, Danijela D., Nastasović, Aleksandra B., Milutinović-Nikolić, Aleksandra D., Suručić, Ljiljana T., Sandić, Zvjezdana, Hercigonja, Radmila V., Onjia, Antonije E., "Equilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymers" in Journal of Hazardous Materials, 209 (2012):99-110, https://doi.org/10.1016/j.jhazmat.2011.12.079 . .