Phase-selective in situ formation of polymorphic FeO(OH) species for optimized arsenic coprecipitation on mechanically activated carbonate minerals

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成果类型：

期刊论文

作者：

Tingting Zhang;Sizhe Lai;Haoyu Bai*;Zhixin Wang;Yanhui Miao;...

通讯作者：

Haoyu Bai

作者机构：

[Zhixin Wang; Yanhui Miao; Yunliang Zhao] School of Resources and Environmental Engineering, Wuhan University of Technology, Wenzhi Street 34, Wuhan, Hubei 430070, China

[Sizhe Lai; Hailan Guo] School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei 430023, China

Department of Materials, Imperial College London, London SW7 2AZ, United Kingdom

[Tingting Zhang] School of Resources and Environmental Engineering, Wuhan University of Technology, Wenzhi Street 34, Wuhan, Hubei 430070, China<&wdkj&>School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei 430023, China

[Haoyu Bai] School of Resources and Environmental Engineering, Wuhan University of Technology, Wenzhi Street 34, Wuhan, Hubei 430070, China<&wdkj&>Department of Materials, Imperial College London, London SW7 2AZ, United Kingdom

通讯机构：

[Haoyu Bai] S

School of Resources and Environmental Engineering, Wuhan University of Technology, Wenzhi Street 34, Wuhan, Hubei 430070, China<&wdkj&>Department of Materials, Imperial College London, London SW7 2AZ, United Kingdom

语种：

英文

期刊：

Separation and Purification Technology

ISSN：

1383-5866

年：

2025

页码：

135410

DOI：

10.1016/j.seppur.2025.135410

基金类别：

CRediT authorship contribution statement Tingting Zhang: Writing – original draft, Methodology, Investigation, acquisition, Formal analysis. Sizhe Lai: Methodology, Investigation. Haoyu Bai: Writing – review & editing, Writing – original draft, Supervision, Formal analysis, Data curation, Conceptualization. Zhixin Wang: Writing – review & editing, Writing – original draft, Supervision, Investigation, Conceptualization. Yanhui Miao: Investigation. Hailan Guo: Investigation. Yunliang Zhao: Supervision, Project administration,

机构署名：

本校为其他机构

院系归属：

化学与环境工程学院

摘要：

Arsenic (As) pollution in aqueous environments is a critical environmental issue that need to be carefully addressed. This work presents a phase-selective strategy for the in situ formation of polymorphic FeO(OH) species on mechanically activated carbonate minerals to optimize As coprecipitation. Calcite (CaCO 3 ) and dolomite (CaMg(CO 3 ) 2 ) were mechanically activated to promote sustained CO 3 2− release, OH − generated by CO 3 2− hydrolysis can elevate pH values and create alkaline microenvironment facilitating in situ Fe(II) hydrolysis....

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Phase-selective in situ formation of polymorphic FeO(OH) species for optimized arsenic coprecipitation on mechanically activated carbonate minerals

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