Mechanistic insights into the enhanced removal of roxsarsone and its metabolites by a sludge-based, biochar supported zerovalent iron nanocomposite: Adsorption and redox transformation

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成果类型：

期刊论文

作者：

Li, Bingyu;Wei, Dongning;Li, Zhuoqing;Zhou, Yimin;Li, Yongjie;...

通讯作者：

Lei, Ming

作者机构：

[Tie, Baiqing; Li, Yongjie; Li, Bingyu; Wei, Dongning; Li, Zhuoqing; Lei, Ming; Zhou, Yimin; Huang, HongLi] Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Peoples R China.

[Tie, Baiqing; Li, Yongjie; Li, Bingyu; Wei, Dongning; Li, Zhuoqing; Lei, Ming; Zhou, Yimin] Hunan Engn & Technol Res Ctr Irrigat Water Purifi, Changsha 410128, Peoples R China.

[Tie, Baiqing; Li, Yongjie; Li, Bingyu; Wei, Dongning; Li, Zhuoqing; Lei, Ming; Zhou, Yimin] Prov Key Lab Rural Ecosyst Hlth Dongting Lake Are, Changsha 410128, Hunan, Peoples R China.

[Huang, Changhong] China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China.

[Long, Jiumei] Hengyang Normal Univ, Coll Life Sci & Environm, Hengyang 421008, Peoples R China.

通讯机构：

[Lei, Ming] H

Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Peoples R China.

语种：

英文

关键词：

*Adsorption;*Degradation;*Roxarsone (ROX);*Synergistic removal;*nZVI

期刊：

Journal of Hazardous Materials

ISSN：

0304-3894

年：

2020

卷：

389

页码：

122091

DOI：

10.1016/j.jhazmat.2020.122091

基金类别：

National Natural Science Foundation of ChinaNational Natural Science Foundation of China [41671475]; Ministry of Science and Technology of ChinaMinistry of Science and Technology, China [2018YFD0800700]; Excellent Doctoral Dissertation Cultivation Fund of Hunan Agricultural University [YB2018004]

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院系归属：

生命科学与环境学院

摘要：

Roxarsone is a phenyl-substituted arsonic acid comprising both arsenate and benzene rings. Few adsorbents are designed for the effective capture of both the organic and inorganic moieties of ROX molecules. Herein, nano zerovalent iron (nZVI) particles were incorporated on the surface of sludge-based biochar (SBC) to fabricate a dual-affinity sorbent that attracts both the arsenate and benzene rings of ROX. The incorporation of nZVI particles significantly increased the binding affinity and sorption capacity for ROX molecules compared to pristine SBC and pure nZVI. The enhanced elimination of R...

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Mechanistic insights into the enhanced removal of roxsarsone and its metabolites by a sludge-based, biochar supported zerovalent iron nanocomposite: Adsorption and redox transformation

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