Removal of uranium(VI) from simulated wastewater by a novel porous membrane based on crosslinked chitosan, UiO-66-NH2 and polyvinyl alcohol

被引：36
作者：
Wang, Yanlin [1 ,2 ]
Long, Jun [1 ,2 ]
Xu, Wenjie [1 ,2 ]
Luo, Huan [1 ,2 ]
Liu, Jun [1 ,2 ]
Zhang, Yaping [1 ,2 ]
Li, Jinchao [1 ,2 ,3 ]
Luo, Xuegang [1 ,2 ]
机构：
[1] Southwest Univ Sci & Technol, Minist Educ, Engn Res Ctr Biomass Mat, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Sichuan, Peoples R China
[2] Southwest Univ Sci & Technol, Sch Mat Sci & Engn, Mianyang 621010, Sichuan, Peoples R China
[3] Sichuan Univ, Sch Chem Engn, Chengdu 610065, Peoples R China
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2021年 / 328卷 / 01期
关键词：
Chitosan; UiO-66-NH2; Adsorption; Uranium(VI); METAL-ORGANIC FRAMEWORKS; FACILE PREPARATION; EFFICIENT REMOVAL; CR(VI) IONS; ADSORPTION; COMPOSITE; U(VI); MOF; URANYL;
D O I：
10.1007/s10967-021-07649-4
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The development of highly efficient adsorbent presents an enticing prospect for U(VI)-containing radioactive wastewater treatment. In this work, a novel porous cCS/PVA/UiO-66-NH2 membrane absorbent comprising of crosslinked chitosan (cCS), polyvinyl alcohol (PVA) and UiO-66-NH2 is designed and prepared. The adsorption capacity of porous cCS/PVA/UiO-66-NH2 membrane achieves 316.50 mg g(-1) under an optimal condition. Furthermore, the porous cCS/PVA/UiO-66-NH2 membrane exhibits a high selectivity for U(VI) adsorption in simulated radioactive wastewater treatment. The possible mechanism of U(VI) adsorption onto porous cCS/PVA/UiO-66-NH2 membrane mainly includes surface complexation and cation exchange processes. In addition, the porous cCS/PVA/UiO-66-NH2 membrane also exhibits excellent cycling adsorption-desorption performance. All these results demonstrate that the porous cCS/PVA/UiO-NH2 membrane is a promising candidate for application in U(VI) removal from radioactive wastewater.
引用
收藏
页码：397 / 410
页数：14
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