文献类型：期刊文献

英文题名：Modified native cellulose fibers-A novel efficient adsorbent for both fluoride and arsenic

作者：Tian, Ye[2,3];Wu, Min[1];Liu, Ruigang[3];Wang, Deqian[2,3];Lin, Xiaobo[2,3];Liu, Weili[2,3];Ma, Lin[2,3];Li, Yanding[5];Huang, Yong[1,3,4]

机构：[1]Chinese Acad Sci, State Engn Res Ctr Engn Plast, Tech Inst Phys & Chem, Beijing 100190, Peoples R China;[2]Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China;[3]Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China;[4]Chinese Acad Sci, Lab Cellulose & Lignocellulos Chem, Guangzhou Inst Chem, Guangzhou 510650, Guangdong, Peoples R China;[5]E China Univ Sci & Technol, Shanghai 200237, Peoples R China

年份：2011

卷号：185

期号：1

起止页码：93

外文期刊名：JOURNAL OF HAZARDOUS MATERIALS

收录：;EI(收录号：20104713418866);WOS:【SCI-EXPANDED(收录号:WOS:000289446700014)】；

基金：This work was supported by National Natural Scientific Foundation of China (No. 50773086, 50821062) and National Program on Key Basic Research Project (973 Program, No. 2011CB933700).

语种：英文

外文关键词：Cellulose fibers; Fluoride; Arsenic; Adsorption; Water treatment

摘要：Native cellulose fibers were surface modified by poly(N,N-dimethyl aminoethyl methacrylate) (PDMAEMA) to generate an anion adsorbent, which was characterized by scanning electron microscopy, fourier transform infrared spectroscopy and elemental analyzer This adsorbent had high efficiency in removal of F-, AsO2- and AsO43- from aqueous solutions, even at low initial concentrations. Adsorption kinetics showed that the adsorption equilibrium could be reached within 1 min. The distribution coefficient did not change with adsorbent dose, indicating the adsorption was a homogenous process. Langmuir, Freundlich and Temkin models were used to fit the adsorption isotherms. Based on the parameters calculated from the models, the adsorption capacity was in the order of AsO43- >> AsO2- > F-, and the adsorption was a favorable process. Compared with Freundlich and Temkin models, the isotherms followed Langmuir model a little better. (C) 2010 Elsevier B.V. All rights reserved.