A novel magnetic functionalized m-carboxyphenyl azo calix[4]arene symmetric sulfide derivative: synthesis and application as a selective adsorbent for removal of U (VI)

被引：5
作者：
Luo, Jiaqi [1 ]
Xu, Yuli [1 ]
Zhu, Qiqi [2 ]
Zhang, Kang [3 ]
Chen, Fang [3 ]
Yu, Xiuwu [3 ,4 ]
Huang, Zhao [3 ,4 ]
Xiao, Fangzhu [2 ,4 ]
Peng, Guowen [1 ,3 ,4 ]
机构：
[1] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China
[2] Univ South China, Sch Publ Hlth, Hengyang 421001, Hunan, Peoples R China
[3] Univ South China, Hunan Prov Engn Technol Res Ctr Uranium Tailings, Hengyang 421001, Hunan, Peoples R China
[4] Univ South China, Hunan Engn Res Ctr Safety Control & Recycling Rad, Hengyang 421001, Hunan, Peoples R China
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2021年 / 327卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Calix[4]arene; Symmetrical sulfide derivatives; Magnetic; U (VI); Adsorption; LAYERED DOUBLE HYDROXIDES; EFFICIENT REMOVAL; EXTRACTION PROPERTIES; URANIUM; U(VI); CALIXARENES; ADSORPTION; WASTE; NANOCOMPOSITES; REMEDIATION;
D O I：
10.1007/s10967-020-07472-3
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A novel adsorbent magnetic functionalized m-carboxyphenyl azo calix[4]arene symmetrical sulfide derivative (Fe3O4/M-CCSSD) was fabricated by a series of simple reactions and characterized by FT-IR and SEM. The effects on U (VI) adsorption process were investigated at several conditions. The calculated data disclose that the adsorption process of U (VI) by Fe3O4/M-CCSSD is an endothermic spontaneous process, which well fits with the pseudo-second-order kinetic and Freundlich isotherm model. In the most favorable conditions, accounting for approximately 89% of U (VI) was removed. In addition, Fe3O4/M-CCSSD showed high selectivity for U (VI) and exceptional reusability.
引用
收藏
页码：175 / 188
页数：14
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