{"title":"Recent advances in the application of natural iron and clay minerals in heterogeneous electro-Fenton process","authors":"Pan Xia , Hui Zhang , Zhihong Ye","doi":"10.1016/j.coelec.2024.101495","DOIUrl":null,"url":null,"abstract":"<div><p>Heterogeneous electro-Fenton (EF) using solid catalysts has emerged as a robust advanced oxidation process for wastewater treatment, capitalizing on the advantages of <em>in-situ</em> oxidant generation, minimal iron sludge production, and a wide pH working window. However, synthetic iron-based catalysts face great challenges in practical application due to their high cost and the risk of secondary pollution. In contrast, the use of natural minerals as catalysts has emerged as a promising alternative owing to their cost-effectiveness, abundance, and eco-friendliness natures. Herein, a summary of the application of natural iron and clay minerals in EF is provided, focusing on the performance, catalytic mechanisms, as well as challenges and perspectives for large-scale application.</p></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"46 ","pages":"Article 101495"},"PeriodicalIF":7.9000,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Current Opinion in Electrochemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2451910324000565","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Heterogeneous electro-Fenton (EF) using solid catalysts has emerged as a robust advanced oxidation process for wastewater treatment, capitalizing on the advantages of in-situ oxidant generation, minimal iron sludge production, and a wide pH working window. However, synthetic iron-based catalysts face great challenges in practical application due to their high cost and the risk of secondary pollution. In contrast, the use of natural minerals as catalysts has emerged as a promising alternative owing to their cost-effectiveness, abundance, and eco-friendliness natures. Herein, a summary of the application of natural iron and clay minerals in EF is provided, focusing on the performance, catalytic mechanisms, as well as challenges and perspectives for large-scale application.
使用固体催化剂的异相电-芬顿（EF）具有原位生成氧化剂、铁污泥产生量极少、pH 值工作窗口宽广等优点，已成为一种用于废水处理的强效高级氧化工艺。然而，由于合成铁基催化剂成本高且存在二次污染的风险，因此在实际应用中面临着巨大的挑战。相比之下，使用天然矿物作为催化剂因其成本效益高、资源丰富和生态友好的特性，已成为一种很有前景的替代方法。本文概述了天然铁和粘土矿物在 EF 中的应用，重点介绍了其性能、催化机制以及大规模应用所面临的挑战和前景。
期刊介绍：
The development of the Current Opinion journals stemmed from the acknowledgment of the growing challenge for specialists to stay abreast of the expanding volume of information within their field. In Current Opinion in Electrochemistry, they help the reader by providing in a systematic manner:
1.The views of experts on current advances in electrochemistry in a clear and readable form.
2.Evaluations of the most interesting papers, annotated by experts, from the great wealth of original publications.
In the realm of electrochemistry, the subject is divided into 12 themed sections, with each section undergoing an annual review cycle:
• Bioelectrochemistry • Electrocatalysis • Electrochemical Materials and Engineering • Energy Storage: Batteries and Supercapacitors • Energy Transformation • Environmental Electrochemistry • Fundamental & Theoretical Electrochemistry • Innovative Methods in Electrochemistry • Organic & Molecular Electrochemistry • Physical & Nano-Electrochemistry • Sensors & Bio-sensors •
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