Recovery of Th(IV) from aqueous solution by reassembled collagen-tannin fiber adsorbent

被引：0
|
作者：
Yunhang Zeng
Xuepin Liao
Qiang He
Bi Shi
机构：
[1] Sichuan University,National Engineering Laboratory for Clean Technology of Leather Manufacture
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2009年 / 280卷
关键词：
Adsorption Capacity; Tannin; Thorium; Collagen Fiber; High Adsorption Capacity;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A novel adsorbent, collagen immobilized tannin adsorbent (CITA), was prepared and its adsorption behaviors to Th(IV) were investigated. CITA was in fibrous state due to the reassembly of collagen molecules by the inducement of tannin. This adsorbent loaded a greater amount of tannin and exhibited higher adsorption capacity to Th(IV) than the tannin immobilized adsorbent prepared from collagen fiber. The adsorption of CITA to Th(IV) is mainly attributed to surface complexation, which is a pH- rather than an ionic strength-dependent process. The adsorption kinetics and isotherms were described by pseudo-second-order rate model and Freundlich equation, respectively. Column adsorption studies indicated that CITA is available for effectively recovering Th(IV) from aqueous solution.
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页码：91 / 98
页数：7
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