Sorption of zinc by novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid
Samo za registrovane korisnike
2011
Autori
Milosavljević, NedeljkoRistić, Mirjana
Perić-Grujić, Aleksandra
Filipović, Jovanka M.
Štrbac, Svetlana
Rakočević, Zlatko Lj.
Kalagasidis Krušić, Melina
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid were applied as adsorbents for the removal of Zn2+ ions from aqueous solution. In batch tests, the influence of solution pH, contact time, initial metal ion concentration and temperature was examined. The sorption was found pH dependent, pH 5.5 being the optimum value. The adsorption process was well described by the pseudosecond order kinetic. The hydrogels were characterized by spectral (Fourier transform infrared-FTIR) and structural (SEM/EDX and atomic force microscopy-AFM) analyses. The surface topography changes were observed by atomic force microscopy, while the changes in surface composition were detected using phase imaging AFM. The negative values of free energy and enthalpy indicated that the adsorption is spontaneous and exothermic one. The best fitting isotherms were Langmuir and Redlich-Peterson and it was found that both linear and nonlinear methods were appropriate for obtaining the isoth...erm parameters. However, the increase of temperature leads to higher adsorption capacity, since swelling degree increased with temperature.
Ključne reči:
Hydrogel / Kinetic model / Adsorption isotherm / Separation / Atomic force microscopyIzvor:
Journal of Hazardous Materials, 2011, 192, 2, 846-854Izdavač:
- Elsevier, Amsterdam
Finansiranje / projekti:
- Sinteza i karakterizacija novih funkcionalnih polimera i polimernih nanokompozita (RS-172062)
- Razvoj i primena metoda i materijala za monitoring novih zagađujućih i toksičnih organskih materija i teških metala (RS-172007)
DOI: 10.1016/j.jhazmat.2011.05.093
ISSN: 0304-3894
PubMed: 21703762
WoS: 000293314000055
Scopus: 2-s2.0-79960164022
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Milosavljević, Nedeljko AU - Ristić, Mirjana AU - Perić-Grujić, Aleksandra AU - Filipović, Jovanka M. AU - Štrbac, Svetlana AU - Rakočević, Zlatko Lj. AU - Kalagasidis Krušić, Melina PY - 2011 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1888 AB - Novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid were applied as adsorbents for the removal of Zn2+ ions from aqueous solution. In batch tests, the influence of solution pH, contact time, initial metal ion concentration and temperature was examined. The sorption was found pH dependent, pH 5.5 being the optimum value. The adsorption process was well described by the pseudosecond order kinetic. The hydrogels were characterized by spectral (Fourier transform infrared-FTIR) and structural (SEM/EDX and atomic force microscopy-AFM) analyses. The surface topography changes were observed by atomic force microscopy, while the changes in surface composition were detected using phase imaging AFM. The negative values of free energy and enthalpy indicated that the adsorption is spontaneous and exothermic one. The best fitting isotherms were Langmuir and Redlich-Peterson and it was found that both linear and nonlinear methods were appropriate for obtaining the isotherm parameters. However, the increase of temperature leads to higher adsorption capacity, since swelling degree increased with temperature. PB - Elsevier, Amsterdam T2 - Journal of Hazardous Materials T1 - Sorption of zinc by novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid EP - 854 IS - 2 SP - 846 VL - 192 DO - 10.1016/j.jhazmat.2011.05.093 ER -
@article{ author = "Milosavljević, Nedeljko and Ristić, Mirjana and Perić-Grujić, Aleksandra and Filipović, Jovanka M. and Štrbac, Svetlana and Rakočević, Zlatko Lj. and Kalagasidis Krušić, Melina", year = "2011", abstract = "Novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid were applied as adsorbents for the removal of Zn2+ ions from aqueous solution. In batch tests, the influence of solution pH, contact time, initial metal ion concentration and temperature was examined. The sorption was found pH dependent, pH 5.5 being the optimum value. The adsorption process was well described by the pseudosecond order kinetic. The hydrogels were characterized by spectral (Fourier transform infrared-FTIR) and structural (SEM/EDX and atomic force microscopy-AFM) analyses. The surface topography changes were observed by atomic force microscopy, while the changes in surface composition were detected using phase imaging AFM. The negative values of free energy and enthalpy indicated that the adsorption is spontaneous and exothermic one. The best fitting isotherms were Langmuir and Redlich-Peterson and it was found that both linear and nonlinear methods were appropriate for obtaining the isotherm parameters. However, the increase of temperature leads to higher adsorption capacity, since swelling degree increased with temperature.", publisher = "Elsevier, Amsterdam", journal = "Journal of Hazardous Materials", title = "Sorption of zinc by novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid", pages = "854-846", number = "2", volume = "192", doi = "10.1016/j.jhazmat.2011.05.093" }
Milosavljević, N., Ristić, M., Perić-Grujić, A., Filipović, J. M., Štrbac, S., Rakočević, Z. Lj.,& Kalagasidis Krušić, M.. (2011). Sorption of zinc by novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid. in Journal of Hazardous Materials Elsevier, Amsterdam., 192(2), 846-854. https://doi.org/10.1016/j.jhazmat.2011.05.093
Milosavljević N, Ristić M, Perić-Grujić A, Filipović JM, Štrbac S, Rakočević ZL, Kalagasidis Krušić M. Sorption of zinc by novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid. in Journal of Hazardous Materials. 2011;192(2):846-854. doi:10.1016/j.jhazmat.2011.05.093 .
Milosavljević, Nedeljko, Ristić, Mirjana, Perić-Grujić, Aleksandra, Filipović, Jovanka M., Štrbac, Svetlana, Rakočević, Zlatko Lj., Kalagasidis Krušić, Melina, "Sorption of zinc by novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid" in Journal of Hazardous Materials, 192, no. 2 (2011):846-854, https://doi.org/10.1016/j.jhazmat.2011.05.093 . .