Mechanistic Insight into Electron Transfer from Fe(II)-Bearing Clay Minerals to Fe (Hydr)oxides

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成果类型：

期刊论文

作者：

Qian, Ao;Lu, Yuxi;Zhang, Yanting;Yu, Chenglong;Zhang, Peng*;...

通讯作者：

Zhang, Peng;Yuan, SH

作者机构：

[Qian, Ao; Tong, Man; Zhang, Peng; Yu, Chenglong; Zhang, P; Zhang, Yanting; Zheng, Yunsong; Lu, Yuxi; Yuan, Songhu] China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430078, Peoples R China.

[Liao, Wenjuan] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Peoples R China.

[Zhang, Peng; Zhang, P; Yao, Yao; Yuan, Songhu] China Univ Geosci, Sch Environm Studies, Hubei Key Lab Yangtze Catchment Environm Aquat Sci, Wuhan 430078, Peoples R China.

通讯机构：

[Zhang, P; Yuan, SH ] C

China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430078, Peoples R China.

China Univ Geosci, Sch Environm Studies, Hubei Key Lab Yangtze Catchment Environm Aquat Sci, Wuhan 430078, Peoples R China.

语种：

英文

关键词：

Fe(II)-bearing clay minerals;Fe (hydr)oxides;electron transfer;redox interface

期刊：

Environmental Science & Technology

ISSN：

0013-936X

年：

2023

卷：

期：

页码：

8015-8025

DOI：

10.1021/acs.est.3c01250

基金类别：

Natural Science Foundation of China [42102040, 42025703]; China Postdoctoral Science Foundation [2020M672438]

机构署名：

本校为其他机构

院系归属：

资源环境学院

摘要：

Electrontransfer (ET) is the essence of most biogeochemical processesrelated to element cycling and contaminant attenuation, whereas ETbetween different minerals and the controlling mechanism remain elusive.Here, we used surface-associated Fe-(II) as a proxy to explore ET betweenreduced nontronite NAu-2 (rNAu-2) and Fe (hydr)-oxides in their coexistingsystems. Results showed that ET could occur from rNAu-2 to ferrihydritebut not to goethite, and the ET amount was determined by the numberof reactive sites and the reduction potential difference between rNAu-2and ferrihydrite. ET proceeded mainly...

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Mechanistic Insight into Electron Transfer from Fe(II)-Bearing Clay Minerals to Fe (Hydr)oxides

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