| Literature DB >> 23827563 |
Nguyen Ngoc Thinh1, Pham Thi Bich Hanh, Le Thi Thanh Ha, Le Ngoc Anh, Tran Vinh Hoang, Vu Dinh Hoang, Le Hai Dang, Nguyen Van Khoi, Tran Dai Lam.
Abstract
A simple method was introduced to prepare magnetic chitosan nanoparticles by co-precipitation via epichlorohydrin cross-linking reaction. The average size of magnetic chitosan nanoparticles is estimated at ca. 30 nm. It was found that the adsorption of Cr(VI) was highly pH-dependent and its kinetics follows the pseudo-second-order model. Maximum adsorption capacity (at pH 3, room temperature) was calculated as 55.80 mg·g(-1), according to Langmuir isotherm model. The nanoparticles were thoroughly characterized before and after Cr(VI) adsorption. From this result, it can be suggested that magnetic chitosan nanoparticles could serve as a promising adsorbent for Cr(VI) in wastewater treatment technology.Entities:
Keywords: Adsorption isotherm; Cr(VI); Fe(3)O(4); Magnetic chitosan nanoparticles
Mesh：
Substances：
Year: 2012 PMID： 23827563 DOI： 10.1016/j.msec.2012.12.013
Source DB: PubMed Journal: Mater Sci Eng C Mater Biol Appl ISSN： 0928-4931 Impact factor: 7.328