Sorption behavior of thorium(IV) onto activated bentonite

被引：0
|
作者：
Zhuoxin Yin
Duoqiang Pan
Peng Liu
Hanyu Wu
Zhan Li
Wangsuo Wu
机构：
[1] Lanzhou University,Radiochemistry Laboratory, School of Nuclear Science and Technology
[2] Ministry of Education,Key Laboratory of Special Function Materials and Structure Design
[3] Chinese Academy of Sciences,Key Laboratory of Petroleum Resources, Gansu Province/CAS Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics
[4] Lanzhou Institute of Chemical Physics,CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province
[5] Chinese Academy of Sciences,undefined
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2018年 / 316卷
关键词：
Sorption; Thorium(IV); Activated bentonite;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Activated bentonite was obtained from acid activation and purification of raw bentonite, sorption of Th(IV) onto activated bentonite was studied by batch experiments. Characterization of activated bentonite and sorption behavior of Th(IV) demonstrated that Th(IV) could quickly absorbed on activated bentonite, and kinetic process fitted well with the pseudo-second-order model. Sorption percentage of Th(IV) on activated bentonite strongly depended on pH, background anion, ionic strength and temperature, which indicated surface complexation was the main sorption mechanism, physisorption and ion-exchange as secondary factors also participated in sorption processes. The results showed activated bentonite was an efficient material for Th(IV) sorption.
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页码：301 / 312
页数：11
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