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Unveiling the unrecognized role of phytic acid in promoting hydroxyl radical generation during FeS colloids oxygenation: implications for organic matter mineralization

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成果类型:
期刊论文
作者:
Peng, Wei;Cui, Haojie;Wei, Minli;Yuan, Songhu;Liao, Peng*;...
通讯作者:
Liao, Peng;Liao, Wenjuan
作者机构:
[Cui, Haojie; Liao, Wenjuan; Peng, Wei; Wei, Minli] Yuelushan Laboratory, College of Resources, Hunan Agricultural University, Changsha, 410128, China
[Peng, Wei] State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, PR China
[Yuan, Songhu] State Key Laboratory of Geomicrobiology and Environmental Changes, China University of Geosciences, NO. 68 Jincheng Street, East Lake High-Tech Development Zone, Wuhan, 430074, PR China
[Liao, Peng] State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, PR China. Electronic address: liaopeng@mail.gyig.ac.cn
[Zhang, Xingming] School of Chemistry and Materials of Science, Hunan Agricultural University, Changsha, 410128, China
通讯机构:
[Peng Liao] S
[Wenjuan Liao] Y
State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, PR China<&wdkj&>Yuelushan Laboratory, College of Resources, Hunan Agricultural University, Changsha, 410128, China<&wdkj&>State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, PR China
语种:
英文
关键词:
FeS colloids;Hydroxyl radical;Mechanism;Organic matter mineralization;Oxygenation;Phytic acid (IHP)
期刊:
Water Research
ISSN:
0043-1354
年:
2026
卷:
288
期:
Pt B
页码:
124758
机构署名:
本校为第一且通讯机构
摘要:
Interactions between iron (Fe) mineral colloids and phytic acid (myo-inositol hexaphosphate, IHP)—a widely distributed organic phosphorus compound—can strongly influence cycling of carbon and coupled elements in aquatic systems. While mechanisms of IHP interacting with Fe(III) minerals are understood, its role in modulating Fe(II)-sulfide (FeS) oxygenation and hydroxyl radical (•OH) generation at anoxic-oxic interfaces remains unresolved. Here, we demonstrate that IHP significantly enhances •OH production during FeS oxygenation at neutral p...

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