Preparation of silica-based titanate adsorbents and application for strontium removal from radioactive contaminated wastewater

被引：0
|
作者：
Z. Chen
Y. Wu
Y. Wei
H. Mimura
机构：
[1] Shanghai Jiao Tong University,School of Nuclear Science and Engineering
[2] Tohoku University,Department of Quantum Science and Energy Engineering, Graduate School of Engineering
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2016年 / 307卷
关键词：
Potassium hexatitanate; Decontamination; Strontium; Silica-based support;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
K2Ti6O13/SiO2 adsorbents were prepared by sol–gel method and good microcrystalline K2Ti6O13 phases were formed at 500 °C. From EDS of the adsorbents before and after adsorption of Sr2+ it showed that there was ion-exchange reaction between K+ and Sr2+. Experimental data on adsorption isotherms were best fit by the Freundlich and Langmuir–Freundlich model. The experimental data indicated that the pseudo-second order kinetic equation was best fit for both single Sr2+ solution and simulated Fukushima wastewater. The pH approaching to neutral displayed a better adsorption behavior for Sr2+ solution. The breakthrough capacity for treatment of Fukushima wastewater increased with decreasing flow rate and increasing bed diameter.
引用
收藏
页码：931 / 940
页数：9
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