Magnetic chitosan composite for adsorption of cationic and anionic dyes in aqueous solution

Title
Magnetic chitosan composite for adsorption of cationic and anionic dyes in aqueous solution
Author
전병훈
Keywords
Methylene blue; Methyl orange; Chitosan; Clay; Magnetite
Issue Date
2015-08
Publisher
ELSEVIER SCIENCE INC
Citation
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v. 28, Page. 60-66
Abstract
A magnetic composite material composed of nano-magnetite (NMT), heulandite (HE), and cross-linked chitosan was prepared and used as an adsorbent for methylene blue (MB) and methyl orange (MO). The composite was characterized for the morphology, magnetic and surface properties. The optimal mass ratio of chitosan:HE:NMT for the best removal of both dyes was determined to be 1:1:0.33. The adsorption of MB and MO followed the pseudo-second order kinetics, and the maximum adsorption capacities were 45.1 and 149.2 mg g(-1) at pH 5.5, respectively. The adsorption of MB increased with the pH increase, while MO adsorption showed an opposite trend. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S1226086X15000337http://hdl.handle.net/20.500.11754/26825
ISSN
1226-086X; 1876-794X
DOI
10.1016/j.jiec.2015.01.023
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING(자원환경공학과) > Articles
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