Molecular-level mapping of high-valent metal-governed reaction patterns of micropollutants and dissolved organic matter
文献类型：期刊论文
| 作者 | Shi, Shuiqin3; Jiang, Linke3; Zhang, Kaiting3; Li, Tongzhen1,2; Yan, Junmei3; Chi, Lianbao4; Feng, Mingbao3 |
| 刊名 | WATER RESEARCH
 |
| 出版日期 | 2025-10-01 |
| 卷号 | 285页码:12 |
| 关键词 | High-valent metals Dissolved organic matter Transformation products FT-ICR MS Machine learning |
| ISSN号 | 0043-1354 |
| DOI | 10.1016/j.watres.2025.124134 |
| 通讯作者 | Chi, Lianbao(chilianbao@qdio.ac.cn) ; Feng, Mingbao(mfeng24@xmu.edu.cn) |
| 英文摘要 | High-valent metal-based oxidation systems have been receiving extensive attention for their high reactivity and selectivity toward recalcitrant organic contaminants. However, the molecular insights into the elimination of organic micropollutants (especially their highly concerned transformation products (TPs)) and dissolved organic matter (DOM) by these oxidation systems remain unclear. This study evaluated the degradation of nine TPs of different precursors (sulfonamides, carbamazepine, and atrazine) under ferrate(VI)/sulfite (Fe(VI)/S(IV)), permanganate(VII)/sulfite (Mn(VII)/S(IV)), cobalt(II)/peroxymonosulfate (Co(II)/PMS), and copper(II)/peroxymonosulfate (Cu(II)/PMS)-based oxidation together with the elucidation of the molecular-level alterations of DOM. Findings revealed both Mn(VII)/S(IV) and Co(II)/PMS achieved superior TP removal (up to 99 % in 20 min) under optimized conditions. Analyzing oxidized products (OPs) indicated their distinct transformation pathways, with multiple OPs exhibiting enhanced persistence, mobility, or chronic toxicity. Fourier-transform ion cyclotron resonance mass spectrometry analysis suggested the compositional restructuration in DOM molecules. Successive transformation of DOM, including oxygen addition, decarboxylation, and selective attack of nitrogen/sulfur-containing moieties, occurred to yield oxygen-enriched, low-molecular-weight fractions. Machine learning and SHAP analysis identified molecular weight as the most dominant predictor of DOM reactivity toward oxidation. These findings enhance the understanding of the availability of TP abatement by high-valent metal-mediated oxidation systems and provide further insights into the DOM transformation during oxidative water treatment. |
| WOS关键词 | WASTE-WATER ; OXIDATION ; KINETICS ; TRANSFORMATION ; FLUORESCENCE ; ACTIVATION ; PEROXYMONOSULFATE ; CONTAMINANTS ; FERRATE(VI) ; INVOLVEMENT |
| 资助项目 | Foundation of China[42376210] ; Foundation of China[22476166] ; Natural Science Foundation of Xiamen, China[3502Z202373008] ; National Key R&D Program of China[2023YFE0112100] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001526829500004 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/202562]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 |
| 通讯作者 | Chi, Lianbao; Feng, Mingbao |
| 作者单位 | 1.Fujian Agr & Forestry Univ, Coll Jun Cao Sci & Ecol Coll Carbon Neutral, Fujian 350002, Peoples R China 2.Chinese Acad Sci, Inst Urban Environm, State Key Lab Ecol Secur Reg & Cities, Xiamen 361021, Peoples R China 3.Xiamen Univ, Coll Environm & Ecol, Fujian Key Lab Coastal Pollut Prevent & Control, Xiamen 361102, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Shuiqin,Jiang, Linke,Zhang, Kaiting,et al. Molecular-level mapping of high-valent metal-governed reaction patterns of micropollutants and dissolved organic matter[J]. WATER RESEARCH,2025,285:12. |
| APA | Shi, Shuiqin.,Jiang, Linke.,Zhang, Kaiting.,Li, Tongzhen.,Yan, Junmei.,...&Feng, Mingbao.(2025).Molecular-level mapping of high-valent metal-governed reaction patterns of micropollutants and dissolved organic matter.WATER RESEARCH,285,12. |
| MLA | Shi, Shuiqin,et al."Molecular-level mapping of high-valent metal-governed reaction patterns of micropollutants and dissolved organic matter".WATER RESEARCH 285(2025):12. |
入库方式： OAI收割
来源：海洋研究所
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