Equilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymers
Samo za registrovane korisnike
2012
Autori
Maksin, DanijelaNastasović, Aleksandra
Milutinović-Nikolić, Aleksandra
Suručić, Ljiljana T.
Sandić, Zvjezdana P.
Hercigonja, Radmila
Onjia, Antonije
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
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.
Ključne reči:
Chromium(VI) sorption / Glycidyl methacrylate / Diethylene triamine / Sorption kinetics / Equilibrium isothermsIzvor:
Journal of Hazardous Materials, 2012, 209, 99-110Izdavač:
- Elsevier Science Bv, Amsterdam
Finansiranje / projekti:
- Nove tehnologije za monitoring i zaštitu životnog okruženja od štetnih hemijskih supstanci i radijacionog opterećenja (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43009)
- Nanostrukturni funkcionalni i kompozitni materijali u katalitičkim i sorpcionim procesima (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45001)
- Porozni materijali na bazi oksida u zaštiti životne sredine od genotoksičnih supstanci (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
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Maksin, Danijela AU - Nastasović, Aleksandra AU - Milutinović-Nikolić, Aleksandra AU - Suručić, Ljiljana T. AU - Sandić, Zvjezdana P. AU - Hercigonja, Radmila AU - Onjia, Antonije PY - 2012 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2203 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. PB - Elsevier Science Bv, Amsterdam T2 - Journal of Hazardous Materials T1 - Equilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymers EP - 110 SP - 99 VL - 209 DO - 10.1016/j.jhazmat.2011.12.079 ER -
@article{ author = "Maksin, Danijela and Nastasović, Aleksandra and Milutinović-Nikolić, Aleksandra and Suručić, Ljiljana T. and Sandić, Zvjezdana P. and Hercigonja, Radmila and Onjia, Antonije", 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.", publisher = "Elsevier Science Bv, Amsterdam", journal = "Journal of Hazardous Materials", title = "Equilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymers", pages = "110-99", volume = "209", doi = "10.1016/j.jhazmat.2011.12.079" }
Maksin, D., Nastasović, A., Milutinović-Nikolić, A., Suručić, L. T., Sandić, Z. P., Hercigonja, R.,& Onjia, A.. (2012). Equilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymers. in Journal of Hazardous Materials Elsevier Science Bv, Amsterdam., 209, 99-110. https://doi.org/10.1016/j.jhazmat.2011.12.079
Maksin D, Nastasović A, Milutinović-Nikolić A, Suručić LT, Sandić ZP, Hercigonja R, Onjia A. 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, Nastasović, Aleksandra, Milutinović-Nikolić, Aleksandra, Suručić, Ljiljana T., Sandić, Zvjezdana P., Hercigonja, Radmila, Onjia, Antonije, "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 . .