期刊
CARBOHYDRATE POLYMERS
卷 225, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2019.115218
关键词
Heavy metal; Pollution; Adsorption; Chitosan
资金
- National Natural Science Foundation of China [51278295]
- Basic ability improvement project for young and middle-aged teachers in Guangxi Zhuang Autonomous Region of China [2018KY0663]
- Scientific and technological bases and special talents of Guangxi Zhuang Autonomous Region of China [AD17195092]
Cotton fiber functionalized with tetraethylenepentamine and chitosan (CTPC) was prepared and used as absorbents for the removal of Cu(II), Pb(II) and Cr(III) ions from aqueous solution. The functionalized materials (CTPC) were characterized by SEM/EDX, FTIR, BET and XRD to confirm the characterization and structural changes of fibers before and after the modifying process. The adsorption performance of CTPC was investigated with different pH, contact time and initial concentration of three kinds of metal ions. Results showed that the maximum adsorption capacity was 81.97 mg g(-1) for Cu(II), 123.46 mg g(-1) for Pb(II) and 72.99 mg g(-1) for Cr (III) based on the Langmuir isotherm model at optimal pH (5.0). Adsorption kinetics of CTPC fibers for Cu(II), Pb (II), and Cr(III) ions followed the pseudo-second-order model. The adsorption-desorption experiments demonstrated that CTPC showed better stability, and CTPC would be an effective and practical material for the treatment and recycling of heavy metal ions in the wastewater.
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