期刊：
Chemical Engineering Journal,2023年454:140365 ISSN：1385-8947
通讯作者：
Xie, Dong(xiedong@usc.edu.cn)
作者机构：
[Li, Suzhe; Tang, Zengming; Yang, Xiaomin] Univ South China, Sch Resource Environm & Safety Engn, Hengyang 421001, Peoples R China.;[Xie, Dong; Li, Suzhe; Tang, Zengming; Yang, Xiaomin] Natl & Local Joint Engn Res Ctr Airborne Pollutant, Hengyang 421001, Peoples R China.;[Xie, Dong; Dai, Shiliang] Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.;[Dai, Shiliang; Wang, Weihao] Hunan Sunny Technol Engn Co Ltd, Hengyang 421001, Peoples R China.
通讯机构：
[Dong Xie] N;National and Local Joint Engineering Research Center of Airborne Pollutants Treatment and Radioactive Protection in Building Environment, Hengyang 421001, China<&wdkj&>School of Civil Engineering, University of South China, Hengyang 421001, China
期刊：
Chemical Engineering Journal,2023年453:139924 ISSN：1385-8947
通讯作者：
Yang, Jianping(jianpingyang@dhu.edu.cn)
作者机构：
[Hua, Yilong; Li, Mi; Zou, Jinglan; Yang, Jianping; Zhang, Xiaowen; Wu, Xiaoyan; Li, Donghan] Univ South China, Sch Resource Environm & Safety Engn, Hengyang 421001, Hunan, Peoples R China.;[Hua, Yilong; Yang, Jianping] Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China.;[Hua, Yilong; Li, Mi; Zou, Jinglan; Wang, Wei; Zhang, Xiaowen; Wu, Xiaoyan; Li, Donghan] Univ South China, United Lab Heavy Met Pollut Control & Resource Reu, Hengyang 421001, Hunan, Peoples R China.;[Zhao, Guodong; Liu, Qing] Univ South China, Hunan Key Lab Pollut Control & Resource Reuse, Hengyang 421001, Hunan, Peoples R China.;[Zhang, Wei-xian] Tongji Univ, Coll Environm Sci & Engn, State Key Lab Pollut Control, Shanghai 200092, Peoples R China.
通讯机构：
[Jianping Yang] S;School of Resource Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, China<&wdkj&>State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
关键词：
Continuous flow stirred tank reactor;Eh control strategy;Nanoscale zero-valent iron;Uranium stability;Uranium wastewater
通讯机构：
[Gang Wang] K;Key Laboratory of Geotechnical and Structural Engineering Safety of Hubei Province, School of Civil Engineering, Wuhan University, Wuhan, China<&wdkj&>School of Civil Engineering, Shaoxing University, Shaoxing, China
关键词：
Rockburst intensities;Rockburst prediction;Strain rockburst;Stress gradient;Stress–strength ratio
作者机构：
[黄仕元; 林森焕; 董雯; 王国华; 吴兴良; 袁瀚钦] School of Civil Engineering, University of South China, Hengyang;421001, China;[黄仕元; 林森焕; 董雯; 王国华; 吴兴良; 袁瀚钦] 421001, China
通讯机构：
[Huang, S.] S;School of Civil Engineering, China
期刊：
Chemical Engineering Journal,2023年465:142730 ISSN：1385-8947
通讯作者：
Zhou, Shuai(zs402606665@126.com)
作者机构：
[Zhou, Shuai; Duan, Yi; Xiang, Chao; Tang, Zhenping] Univ South China, Hunan Prov Key Lab Pollut Control & Resources Reus, Hengyang 421001, Peoples R China.;[Gao, Yuanyuan; Hua, Yilong; Zhou, Shuai; Wei, Fuxing; Zhu, Feiyu; Jiang, Tianyun; Tang, Zhenping] Univ South China, Hunan Prov Key Lab Rare Met Minerals Exploitat & G, Hengyang 421001, Peoples R China.;[Wang, Yayi] Tongji Univ, Coll Environm Sci & Engn, State Key Lab Pollut Control & Resources Reuse, Siping Rd, Shanghai 200092, Peoples R China.
通讯机构：
[Shuai Zhou] H;[Yayi Wang] S;State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Siping Road, Shanghai 200092, China<&wdkj&>Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang 421001, China<&wdkj&>Hunan Province Key Laboratory of Rare Metal Minerals Exploitation and Geological Disposal of Wastes, University of South China, Hengyang 421001, China
摘要：
Although oxygen-containing functional groups generated during unavoidable aging play a key role in improving the adsorption performance of heavy metals by microplastics (MPs), little is known about the contribution of such groups to the interactions between highly toxic radioactive heavy metals and aged MPs. Here, we used a combination of batch experiments and density functional theory calculations to examine the effects and mechanisms of aging and the produced oxygen-containing functional groups, i.e., C═O, –OH, phenolic hydroxyl (–OHm), and –COOH, on the adsorption behavior of representative radionuclide uranium (U) on polystyrene (PS) MPs. The kinetic experimental results showed that the amount of U adsorption by the aged PS MPs was significantly higher than that of virgin PS MPs (P < 0.05). Binding-energy and thermodynamic data indicated that the affinity of PS MPs to a typical U species, i.e., uranyl, followed the order of PS═O–OHm > PS═O > PS–COOH > PS–OH > PS–OHm > virgin PS. Characterization and surface potential analyses demonstrated that the electronegative oxygen atoms in oxygen-containing functional groups in the aged PS MPs increased along with the aging time, and could serve as potential sites for electrostatic interactions with uranyl. Intramolecular interaction calculations confirmed that hydrogen bonding by oxygen-containing functional groups could strengthen the interactions between uranyl and aged PS MPs via electrostatic and polarization effects. Our findings provide an in-depth understanding of the role of aging in U adsorption by MPs, which is critical for assessing the fate of coexisting radionuclides and MPs in the environment, and their associated risks.
作者机构：
[田追; 张震; 卢嫚; 杨斌; 杨金辉; 周书葵; 魏柏; 李聪] School of Civil Engineering, University of South China, Hunan, Hengyang;421001, China;[田追; 张震; 卢嫚; 杨斌; 杨金辉; 周书葵; 魏柏; 李聪] 421001, China
期刊：
Construction and Building Materials,2022年343:127953 ISSN：0950-0618
通讯作者：
Tao, Qiuwang(taoqiuwang@usc.edu.cn)
作者机构：
[Deng, Du; Li, Zhujing; Chen, Zhenfu; Tao, Qiuwang; Jin, Dan; Luo, Lincheng] Univ South China, Sch Civil Engn, Hengyang 421001, Hunan, Peoples R China.;[Deng, Du; Chen, Zhenfu; Tao, Qiuwang; Luo, Lincheng] Univ South China, China Nucl Ind Key Lab High Performance Concrete, Hengyang 421001, Hunan, Peoples R China.;[Deng, Du; Li, Zhujing; Chen, Zhenfu; Tao, Qiuwang; Jin, Dan; Luo, Lincheng] Univ South China, Hunan Prov Key Lab High Performance Special Concre, Hengyang 421001, Hunan, Peoples R China.;[Xie, Liping] China Nucl Ind 22ND Construct Co Ltd, Yichang 443101, Hubei, Peoples R China.
通讯机构：
[Qiuwang Tao] S;School of Civil Engineering, University of South China, Hengyang 421001, Hunan Province, China<&wdkj&>China Nuclear Industry Key Laboratory of High-Performance Concrete, University of South China, Hengyang 421001, Hunan Province, China<&wdkj&>Hunan Provincial Key Laboratory of High-Performance Special Concrete, University of South China, Hengyang 421001, Hunan Province, China
关键词：
Barite;Gamma ray shielding;High temperature;Magnetite;Radiation shielding concrete;Splitting tensile strength
作者机构：
[胡世琴; 杨金辉; 杨斌; 王劲松; 周书葵; 雷增江; 骆毅] School of Civil Engineering, University of South China, Hengyang;421001, China;[胡世琴; 杨金辉; 杨斌; 王劲松; 周书葵; 雷增江; 骆毅] 421001, China
作者机构：
[李仕友; 胡俊毅; 贺俊钦; 汪杨; 乔记帅; 王国华] School of Civil Engineering, University of South China, Hengyang;421001, China;Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hengyang;[李仕友; 王国华] 421001, China<&wdkj&>Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hengyang;[李仕友; 胡俊毅; 贺俊钦; 汪杨; 乔记帅; 王国华] 421001, China
通讯机构：
[Wang, G.] S;[Wang, G.] H;School of Civil Engineering, China;Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, China
作者机构：
[刘清; 许艺文; 李伟凡] College of Civil Engineering, University of South China, Hengyang;421001, China;[招国栋; 滑熠龙] College of Resource Environment and Safety Engineering, University of South China, Hengyang;[刘清; 许艺文; 招国栋; 滑熠龙; 李伟凡] 421001, China
通讯机构：
[Liu, Q.] C;College of Civil Engineering, China
作者机构：
[黄仕元; 邓简; 袁瀚钦; 王国华; 吴兴良] School of Civil Engineering, University of South China, Hunan, Hengyang;421001, China;Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hunan, Hengyang;[黄仕元; 邓简; 袁瀚钦; 王国华; 吴兴良] 421001, China;[王国华] 421001, China<&wdkj&>Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hunan, Hengyang
作者机构：
[雷铭; 谢水波; 葛玉杰; 刘迎九] School of Civil Engineering, University of South China, Hunan, Hengyang;421001, China;[刘岳林] Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hunan, Hengyang;School of Civil Engineering, Hunan University of Technology, Hunan, Zhuzhou;412007, China
通讯机构：
[Xie, S.] S;School of Civil Engineering, Hunan, China
作者机构：
[Zhou, Shuai; Duan, Yi] Univ South China, Hunan Prov Key Lab Pollut Control & Resources Reu, Hengyang 421001, Peoples R China.;[Liu, Boyang; Zhou, Shuai; Duan, Yi; Xiong, Cong] Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.;[Gao, Yuanyuan; Zhou, Shuai; Tang, Zhenping] Univ South China, Hunan Prov Key Lab Rare Met Minerals Exploitat &, Hengyang 421001, Peoples R China.;[Su, Yinglong] East China Normal Univ, Sch Ecol & Environm Sci, Shanghai 200241, Peoples R China.;[Wang, Yayi] Tongji Univ, Coll Environm Sci & Engn, Shanghai Inst Pollut Control & Ecol Secur, State Key Lab Pollut Control & Resources Reuse, Siping Rd, Shanghai 200092, Peoples R China.
通讯机构：
[Yi Duan] H;Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, 421001, China<&wdkj&>School of Civil Engineering, University of South China, Hengyang, 421001, China
