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Effective Removal of Anionic Re(VII) by Surface-Modified Ti2CTx MXene Nanocomposites: Implications for Tc(VII) Sequestration

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成果类型:
期刊论文
作者:
Wang, Lin;Song, Huan;Yuan, Liyong;Li, Zijie;Zhang, Peng;...
通讯作者:
Shi, Weiqun
作者机构:
[Zhang, Peng; Yuan, Liyong; Chai, Zhifang; Li, Zijie; Shi, Weiqun; Wang, Lin; Song, Huan] Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Energy Chem, Beijing 100049, Peoples R China.
[Zhang, Peng; Yuan, Liyong; Chai, Zhifang; Li, Zijie; Shi, Weiqun; Wang, Lin; Song, Huan] Chinese Acad Sci, Inst High Energy Phys, Key Lab Biomed Effects Nanomat & Nanosafety, Beijing 100049, Peoples R China.
[Wang, Hongqing; Song, Huan] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China.
[Wang, Hongqing; Song, Huan] Univ South China, Hunan Key Lab Design & Applicat Actinide Complexe, Hengyang 421001, Peoples R China.
[Gibson, John K.] LBNL, Chem Sci Div, Berkeley, CA 94720 USA.
通讯机构:
[Shi, Weiqun] C
Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Energy Chem, Beijing 100049, Peoples R China.
Chinese Acad Sci, Inst High Energy Phys, Key Lab Biomed Effects Nanomat & Nanosafety, Beijing 100049, Peoples R China.
语种:
英文
期刊:
Environmental Science & Technology
ISSN:
0013-936X
年:
2019
卷:
53
期:
7
页码:
3739-3747
基金类别:
This work was supported by the National Natural Science Foundation of China (Grants no. 21577144, 11675192, 21790373, and 21790370) and the Science Challenge Project (TZ2016004). Research of J.K.G. was supported by the Center for Actinide Science and Technology, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, under Award Number DE-SC0016568. We are grateful to the staff of Beijing Synchrotron Radiation Facility (BSRF) for EXAFS and XANES measurement.
机构署名:
本校为其他机构
院系归属:
化学化工学院
摘要:
Environmental contamination by 99Tc(VII) from radioactive wastewater streams is of particular concern due to the long half-life of 99Tc and high mobility of pertechnetate. Herein, we report a novel MXene-polyelectrolyte nanocomposite with three-dimensional networks for enhanced removal of perrhenate, which is pertechnetate simulant. The introduction of poly(diallyldimethylammonium chloride) (PDDA) regulates the surface charge and improves the stability of Ti2CTx nanosheet, resulting in Re(VII) removal capacity of up to 363 mg g-1, and fast sorp...

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