Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/4606
Title: Chitosan-immobilized pumice for the removal of As(V) from waters
Authors: Turan, Dilek
Kocahakimoğlu, Cemre
Boyacı, Ezel
Sofuoğlu, Sait Cemil
Eroğlu, Ahmet Emin
Turan, Dilek
Kocahakimoğlu, Cemre
Boyacı, Ezel
Sofuoğlu, Sait Cemil
Eroğlu, Ahmet Emin
Izmir Institute of Technology. Chemical Engineering
Keywords: Arsenic
Biosorbent
Chitosan
Pumice
Sorption
Removal
Issue Date: May-2014
Publisher: Springer Verlag
Source: Turan, D., Kocahakimoğlu, C., Boyacı, E., Sofuoğlu, S. C., and Eroğlu, A. E. (2014). Chitosan-immobilized pumice for the removal of As(V) from waters. Water, Air, and Soil Pollution, 225(5). doi:10.1007/s11270-014-1931-z
Abstract: A novel sorbent, chitosan-immobilized pumice, has been prepared for the sorption of As(V) from waters prior to its determination by hydride generation atomic absorption spectrometry. The success of the immobilization has been checked with such characterization techniques as scanning electron microscopy, thermal gravimetric analysis, and elemental analysis. Points of zero charge of the sorbents were determined with potentiometric mass titration. Batch-type equilibration studies have shown that the novel sorbent can be employed at a wide pH range resulting in quantitative sorption (>90 %) at pH 3.0-7.0 and greater than 70 % sorption at pH >8.0. These results demonstrate the advantage of immobilizing chitosan onto pumice, because, under the same conditions, pumice displays <20 % sorption toward As(V), whereas chitosan gives approximately 90%sorption only at pH 3.0. The validity of the method was verified through the analysis of ultrapure, bottled drinking, and tap water samples spiked with arsenate; the respective sorption percentages of 93.2 (±0.7), 89.0 (±1.0), and 80.9 (±1.3) were obtained by batch-type equilibration. Arsenic sorption was also examined in the presence of common interfering ions resulting in competing effects of PO3- 4 and NO- 3on As(V) adsorption.
URI: http://doi.org/10.1007/s11270-014-1931-z
http://hdl.handle.net/11147/4606
ISSN: 0049-6979
0049-6979
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Chemistry / Kimya
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Sürdürülebilir Yeşil Kampüs Koleksiyonu / Sustainable Green Campus Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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