Non-free radicals based advanced oxidation processes: Research progress and future prospects

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Research & Design Pub Date : 2024-09-21 DOI:10.1016/j.cherd.2024.09.030

Xiangyu Bai , Chao Li , Shilong He , Jiping Zhou

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Abstract

Due to the strong oxidizing ability of free radicals, advanced oxidation processes (AOPs) are almost considered to be the 'universal key' for organic wastewater treatment, but they cannot be perfect. AOPs has always been built on the basis of strong oxidizing free radicals (free radicals based AOPs, FAOPs), which are difficult to resist the interference of common magazines (inorganic anions and dissolved organic matters) in practical wastewater, and their selectivity is not satisfactory. The above problems seem to be well solved in the non-free radicals based AOPs (NFAOPs) system, because non-radicals represented by singlet oxygen exhibit strong anti-interference ability and selectivity to benzene compounds with electron donating groups. However, the current understanding of NFAOPs does not match their application potential. Therefore, this work attempts to make a detailed review on the types, identification, advantages and disadvantages of NFAOPs, in order to provide some guidance for the subsequent research on their mechanism, initiation and performance optimization.

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基于非自由基的高级氧化工艺：研究进展与未来展望

由于自由基的强氧化能力，高级氧化工艺（AOPs）几乎被认为是有机废水处理的 "万能钥匙"，但它并不完美。AOPs 一直建立在强氧化自由基（基于自由基的 AOPs，FAOPs）的基础上，难以抵抗实际废水中常见杂志（无机阴离子和溶解性有机物）的干扰，其选择性也不尽如人意。基于非自由基的 AOPs（NFAOPs）系统似乎可以很好地解决上述问题，因为以单线态氧为代表的非自由基表现出很强的抗干扰能力，并且对带有电子捐赠基团的苯化合物具有选择性。然而，目前对 NFAOPs 的了解与其应用潜力并不匹配。因此，本研究试图对 NFAOPs 的类型、识别、优缺点等方面进行详细综述，以期为后续对其机理、引发和性能优化等方面的研究提供一些指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemical Engineering Research & Design 工程技术-工程：化工

CiteScore

6.10

自引率

7.70%

发文量

623

审稿时长

42 days

期刊介绍： ChERD aims to be the principal international journal for publication of high quality, original papers in chemical engineering. Papers showing how research results can be used in chemical engineering design, and accounts of experimental or theoretical research work bringing new perspectives to established principles, highlighting unsolved problems or indicating directions for future research, are particularly welcome. Contributions that deal with new developments in plant or processes and that can be given quantitative expression are encouraged. The journal is especially interested in papers that extend the boundaries of traditional chemical engineering.