Synthesis of phytic acid-decorated titanate nanotubes for high efficient and high selective removal of U(VI)

被引：0
|
作者：
Yuan, Fang [1 ,2 ]
Wu, Chunfang [1 ,2 ]
Cai, Yawen [1 ,2 ]
Zhang, Linjuan [3 ]
Wang, Jianqiang [3 ]
Chen, Lanhua [1 ,2 ]
Wang, Xiangke [1 ,2 ,4 ]
Yang, Shitong [1 ,2 ]
Wang, Shuao [1 ,2 ]
机构：
[1] School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou,215123, China
[2] Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou,215123, China
[3] Shanghai Institute of Applied Physics and Key Laboratory of Nuclear Radiation and Nuclear Energy Technology, Chinese Academy of Sciences, Shanghai,201800, China
[4] School of Environment and Chemical Engineering, North China Electric Power University, Beijing,102206, China
来源：
Chemical Engineering Journal | 2017年 / 322卷
基金：
中国国家自然科学基金;
关键词：
Ionic strength - Cost effectiveness - Metals - X ray diffraction - Yarn - Fourier transform infrared spectroscopy - Ion exchange - Metal ions - Nanotubes - Sorption;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this study, the inorganic-organic hybrid of PA/TNTs was synthesized and characterized by using multiple analysis techniques. Batch experiments were conducted to investigate the removal performance of PA/TNTs towards U(VI). The sorption kinetics procedure achieved equilibrium within 6 h. The maximum sorption capacity at 293 K and pH 5.0 was calculated to be 1.16 × 10−3 mol/g. In addition, the PA/TNTs composite showed a higher sorption selectivity towards U(VI) over many other metal ions. The ionic strength experiments, desorption results, X-ray diffraction (XRD), solid fluorescence, extended X-ray adsorption fine structure (EXAFS) and Fourier transform infrared spectroscopy (FTIR) analysis suggested the predominant sorption mechanism was inner-sphere complexation rather than ion exchange or precipitation. Overall, the synthesized PA/TNTs composite could be utilized as a cost-effective material for the removal of U(VI) from wastewater. © 2017 Elsevier B.V.
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页码：353 / 365
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