期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 185, 期 1, 页码 93-100出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2010.09.001
关键词
Cellulose fibers; Fluoride; Arsenic; Adsorption; Water treatment
资金
- National Natural Scientific Foundation of China [50773086, 50821062]
- National Program on Key Basic Research Project (973 Program) [2011CB933700]
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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据