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The amidoxime-functionalized magnetic dendritic fibrous nano-silica with a core–shell structure for the efficient capture of U(VI)

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成果类型:
期刊论文
作者:
Wang, Fang;Chen, Zhuo;Wu, Yue;Peng, Yating;Li, Tingting*;...
通讯作者:
Wang, F;Li, Tingting;Xia, LS
作者机构:
[Peng, Yating; Chen, Zhuo; Wu, Yue; Wang, Fang] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.
[Li, Tingting; Xia, Liangshu] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.
通讯机构:
[Xia, LS ; Wang, F ; Li, TT] U
Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.
Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.
语种:
英文
关键词:
Silica;Amidoxime;U(VI);Magnetic
期刊:
Applied Surface Science
ISSN:
0169-4332
年:
2025
卷:
680
页码:
161491
基金类别:
CRediT authorship contribution statement Fang Wang: Writing – original draft, Methodology, Investigation, acquisition, Conceptualization. Zhuo Chen: Investigation. Yue Wu: Writing – review & editing. Yating Peng: Investigation. Tingting Li: Writing – review & editing, acquisition. Liangshu Xia: Supervision, acquisition. Acknowledgements The research received funding from National Natural Science Foundation of China, China (22176083); Excellent Youth Projects of Education Department of Hunan Province, China (23B0428 and 23B0407); College Students Innovation and Entrepreneurship Training Program, China (No. D202405240020479766). The authors acknowledge the support of Shiyanjia lab (www.shiyanjia.com ) for providing assistance with XPS test.
机构署名:
本校为第一且通讯机构
院系归属:
化学化工学院
核科学技术学院
摘要:
The U(VI) extraction from nuclear wastewater through adsorption techniques is vital for reclaiming uranium resources and mitigating environmental pollution. Herein, amidoxime-functionalized dendritic fibrous nanosilica with magnetic reponsiveness and core-shell structure (Fe3O4@DFNS-AO) was synthesized. The rapid absorption of U(VI) by Fe3O4@DFNS-AO achieved equilibrium within 40 min. Fe3O4@DFNS-AO showed great adsorption efficiency, as well as good reusability and selectivity, with a capacity of 175.4 mg/g at optimal pH 6.0. Furthermore, the mechanism was disclosed based upon the study of ads...

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