Study on Removal of Cr(VI)from Aqueous Solution by Cross-Linked Chitosan  

作　　者：Xiaoyu Du Yanling Deng Shunsuke Sekiguchi Naoto Miyamoto Naoki Kano Hiroshi Imaizumi 

机构地区：[1]Graduation School of Science and Technology,Niigata University,Niigata 950-2181,Japan [2]Department of Chemistry and Chemical Engineering,Faculty of Engineering,Niigata University,Niigata 950-2181,Japan

出　　处：《Journal of Environmental Science and Engineering(A)》2018年第1期1-7,共7页环境科学与工程（A）

摘　　要：In this paper,the adsorbent for the removal of hexavalent Cr(Chromium)from aqueous solutions has been prepared by modifying chitosan composite with EP(Epichlorohydrin)or GA(Glutaraldehyde).The modified cross-linked chitosan was characterized by SEM(Scanning Electron Microscopy)and FT-IR(Fourier Transform Infrared Spectroscopy).Batch adsorption experiments were carried out to evaluate the adsorption of Cr(VI)by the cross-linked chitosan under different conditions.Furthermore,the sorption mechanism of Cr(VI)by the cross-linked chitosan was investigated by applying Langmuir and Freundlich isotherm equations to the data obtained.The concentration of Cr in solution was determined by ICP-MS(Inductively Coupled Plasma Mass Spectrometry).The cross-linked chitosan can be an efficient sorbent for Cr(VI).

关 键 词：CROSS-LINKED CHITOSAN EP(Epichlorohydrin) GA(Glutaraldehyde) hexavalent Cr(Chromium) adsorption isotherms kinetics 

分 类 号：X[环境科学与工程]