Sorption of zinc by novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid
Samo za registrovane korisnike
2011
Autori
Milosavljevic, Nedeljko B.Ristic, Mirjana D.
Peric-Grujic, Aleksandra A.
Filipovic, 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 Zn(2+) 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 iso...therm 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 Science Bv, Amsterdam
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
IHTMTY - JOUR AU - Milosavljevic, Nedeljko B. AU - Ristic, Mirjana D. AU - Peric-Grujic, Aleksandra A. AU - Filipovic, Jovanka M. AU - Štrbac, Svetlana AU - Rakočević, Zlatko Lj. AU - Kalagasidis Krušić, Melina PY - 2011 UR - http://cer.ihtm.bg.ac.rs/handle/123456789/805 AB - Novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid were applied as adsorbents for the removal of Zn(2+) 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 Science Bv, Amsterdam T2 - Journal of Hazardous Materials T1 - Sorption of zinc by novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid VL - 192 IS - 2 SP - 846 EP - 854 DO - 10.1016/j.jhazmat.2011.05.093 ER -
@article{ author = "Milosavljevic, Nedeljko B. and Ristic, Mirjana D. and Peric-Grujic, Aleksandra A. and Filipovic, Jovanka M. and Štrbac, Svetlana and Rakočević, Zlatko Lj. and Kalagasidis Krušić, Melina", year = "2011", url = "http://cer.ihtm.bg.ac.rs/handle/123456789/805", abstract = "Novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid were applied as adsorbents for the removal of Zn(2+) 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 Science Bv, Amsterdam", journal = "Journal of Hazardous Materials", title = "Sorption of zinc by novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid", volume = "192", number = "2", pages = "846-854", doi = "10.1016/j.jhazmat.2011.05.093" }
Milosavljevic NB, Ristic MD, Peric-Grujic AA, Filipovic JM, Štrbac S, Rakočević ZL, Kalagasidis Krušić M. Sorption of zinc by novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid. Journal of Hazardous Materials. 2011;192(2):846-854
Milosavljevic, N. B., Ristic, M. D., Peric-Grujic, A. A., Filipovic, 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. Journal of Hazardous MaterialsElsevier Science Bv, Amsterdam., 192(2), 846-854. https://doi.org/10.1016/j.jhazmat.2011.05.093
Milosavljevic Nedeljko B., Ristic Mirjana D., Peric-Grujic Aleksandra A., Filipovic 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" 192, no. 2 (2011):846-854, https://doi.org/10.1016/j.jhazmat.2011.05.093 .