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The performance and mechanism of U(VI) removal from aqueous solutions by a metal–organic framework (DUT-69)

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成果类型:
期刊论文
作者:
Chen, Xiang;Xie, Shuibo;Wang, Guohua;Liu, Haiyan;Guo, Yu;...
通讯作者:
Shuibo Xie
作者机构:
[Guo, Yu; Wu, Shanshan; Xie, Shuibo; Liu, Haiyan; Liu, Xiaoyang; Wang, Guohua; Yang, Siqin; Chen, Xiang] Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.
[Xie, Shuibo; Liu, Haiyan] Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang 421001, Peoples R China.
通讯机构:
[Shuibo Xie] S
School of Civil Engineering, University of South China, Hengyang, China<&wdkj&>Key Discipline Laboratory for National Defence of Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, China
语种:
英文
关键词:
metal organic framework;uranium;zirconium;adsorption;aqueous solution;Article;chemical bond;complex formation;concentration (parameter);static electricity;synthesis
期刊:
Journal of Radioanalytical and Nuclear Chemistry
ISSN:
0236-5731
年:
2021
卷:
328
期:
1
页码:
181-194
基金类别:
This research was supported by Youth Program of National Natural Science Foundation of China (NO.51904155) and the key scientific research project of Education Bureau of Hunan Province (19A421). The authors are grateful to the Laboratory of Pollution Control and Resource Technology and the Department of Municipal Engineering at the University of South China for providing the necessary facilities for the research.
机构署名:
本校为第一机构
院系归属:
土木工程学院
核资源工程学院
摘要:
A zirconium-based metal–organic framework (DUT-69) was fabricated via a hydrothermalsynthesis for U(VI) removal in aqueous solutions. Experimental results showed that the maximum adsorption capacity for U(VI) was 362.32mg·g−1 at 303K, pH = 6 and initial U(VI) concentration of 80mg L−1. The adsorption process fit well with the pseudo-second-order kinetic and Langmuir models. Various characterizations indicated that complexation interactions was the central adsorption mechanism and electrostatic was the secondary. The carboxyl, Zr–O, and C–...

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