Recent Progress in Molecular Oxygen Activation by Iron-Based Materials: Prospects for Nano-Enabled In Situ Remediation of Organic-Contaminated Sites.

IF 3.9 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Toxics Pub Date : 2024-10-24 DOI:10.3390/toxics12110773

Fangru He, Lianrui Xu, Hongyang Wang, Chuanjia Jiang

{"title":"Recent Progress in Molecular Oxygen Activation by Iron-Based Materials: Prospects for Nano-Enabled In Situ Remediation of Organic-Contaminated Sites.","authors":"Fangru He, Lianrui Xu, Hongyang Wang, Chuanjia Jiang","doi":"10.3390/toxics12110773","DOIUrl":null,"url":null,"abstract":"In situ chemical oxidation (ISCO) is commonly used for the remediation of contaminated sites, and molecular oxygen (O2) after activation by aquifer constituents and artificial remediation agents has displayed potential for efficient and selective removal of soil and groundwater contaminants via ISCO. In particular, Fe-based materials are actively investigated for O2 activation due to their prominent catalytic performance, wide availability, and environmental compatibility. This review provides a timely overview on O2 activation by Fe-based materials (including zero-valent iron-based materials, iron sulfides, iron (oxyhydr)oxides, and Fe-containing clay minerals) for degradation of organic pollutants. The mechanisms of O2 activation are systematically summarized, including the electron transfer pathways, reactive oxygen species formation, and the transformation of the materials during O2 activation, highlighting the effects of the coordination state of Fe atoms on the capability of the materials to activate O2. In addition, the key factors influencing the O2 activation process are analyzed, particularly the effects of organic ligands. This review deepens our understanding of the mechanisms of O2 activation by Fe-based materials and provides further insights into the application of this process for in situ remediation of organic-contaminated sites.","PeriodicalId":23195,"journal":{"name":"Toxics","volume":"12 11","pages":""},"PeriodicalIF":3.9000,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11598522/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Toxics","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.3390/toxics12110773","RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}

引用次数: 0

Abstract

In situ chemical oxidation (ISCO) is commonly used for the remediation of contaminated sites, and molecular oxygen (O₂) after activation by aquifer constituents and artificial remediation agents has displayed potential for efficient and selective removal of soil and groundwater contaminants via ISCO. In particular, Fe-based materials are actively investigated for O₂ activation due to their prominent catalytic performance, wide availability, and environmental compatibility. This review provides a timely overview on O₂ activation by Fe-based materials (including zero-valent iron-based materials, iron sulfides, iron (oxyhydr)oxides, and Fe-containing clay minerals) for degradation of organic pollutants. The mechanisms of O₂ activation are systematically summarized, including the electron transfer pathways, reactive oxygen species formation, and the transformation of the materials during O₂ activation, highlighting the effects of the coordination state of Fe atoms on the capability of the materials to activate O₂. In addition, the key factors influencing the O₂ activation process are analyzed, particularly the effects of organic ligands. This review deepens our understanding of the mechanisms of O₂ activation by Fe-based materials and provides further insights into the application of this process for in situ remediation of organic-contaminated sites.

查看原文本刊更多论文

铁基材料分子氧活化的最新进展：有机污染场地的纳米原位修复前景。

原位化学氧化（ISCO）通常用于污染场地的修复，分子氧（O2）被含水层成分和人工修复剂激活后，显示出通过 ISCO 高效、选择性地去除土壤和地下水污染物的潜力。其中，铁基材料因其突出的催化性能、广泛的可获得性和环境兼容性，正被积极研究用于活化氧气。本综述及时概述了铁基材料（包括零价铁基材料、硫化铁、铁（氧氢）氧化物和含铁粘土矿物）活化氧气降解有机污染物的情况。系统地总结了氧气活化的机理，包括电子传递途径、活性氧的形成以及氧气活化过程中材料的转变，突出了铁原子的配位状态对材料活化氧气能力的影响。此外，还分析了影响 O2 活化过程的关键因素，特别是有机配体的影响。这篇综述加深了我们对铁基材料活化 O2 机制的理解，并为将这一过程应用于有机污染场地的原位修复提供了进一步的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Toxics Chemical Engineering-Chemical Health and Safety

CiteScore

4.50

自引率

10.90%

发文量

681

审稿时长

6 weeks

期刊介绍： Toxics (ISSN 2305-6304) is an international, peer-reviewed, open access journal which provides an advanced forum for studies related to all aspects of toxic chemicals and materials. It publishes reviews, regular research papers, and short communications. Our aim is to encourage scientists to publish their experimental and theoretical results in detail. There is, therefore, no restriction on the maximum length of the papers, although authors should write their papers in a clear and concise way. The full experimental details must be provided so that the results can be reproduced. Electronic files or software regarding the full details of calculations and experimental procedure can be deposited as supplementary material, if it is not possible to publish them along with the text.