期刊
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
卷 100, 期 -, 页码 277-284出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jtice.2019.04.025
关键词
Silica material; Amination; Glutaraldehyde; Schiff base; Rhenium
资金
- National Natural Science Foundation of China [51674131, 21373005]
- National Science Technology Ministry [2015BAB02B03]
- Education Bureau of Liaoning Province [LZ2014001]
In the present work, high density active sites (C=N- groups) were introduced favorably onto the surface of silica by cross-linking reaction, leading to designing a new adsorbent and applying to the adsorption for Re(VII) from aqueous solutions. The novel adsorbent (SS-0.5h-0.5N-15GA) was characterized by SEM-EDS, TEM, FT-IR and XPS etc. The adsorption process fitted well with Langmuir isotherm the kinetic data fitted with pseudo-second order, and the experimental maximum adsorption capacity for Re(VII) was 270.13 mg/g at pH3.0, which was much higher than SS-0.5h-0.5N. Significantly, the reusability experiments demonstrated that SS-0.5h-0.5N-15GA exhibited excellent regeneration ability, with no obvious decline in adsorption capacity after four cycles. These results indicated that SS-0.5h-0.5N-15GA were promising for Re(VII) adsorption because of their higher rhenium adsorption capacity, rapid adsorption rate, low cost, and facile recovery process. (C) 2019 Taiwan Institute of Chemical Engineers. Published by 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