Persulfate-based advanced oxidation processes (PS-AOPs) are considered as efficient techniques for the degradation of contaminants, whereas the effective activation methods for reactive oxygen species (ROS) generation play vital roles in PS-AOPs. However, the internal electric field mediated activation methods, like introducing chemicals and materials, are often restricted by their intrinsic properties. Conversely, the introduction of external fields can provide extra energy to remarkably enhance the PS activation performance from outside, acting as an additional impetus to promote the cleavage of OO bond and thus improve the generation efficiency of ROS. In this review, a comprehensive overview of the external field enhanced PS-AOPs from fundamentals to applications was introduced. Specifically, the activation mechanisms under different external fields, recent advances and their influencing factors, as well as potential practical applications of the external field enhanced PS-AOPs were summarized. The perspectives from the opportunity to challenge were thus made for future investigation. Therefore, this review is expected to give a systematic overview of external-field enhanced PS-AOPs, providing a new direction towards the improvement on catalytic efficiency of PS-AOPs through the rational utilization of external fields.

中文翻译：

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如何利用外场效应增强过硫酸盐过程：从基础到应用


基于过硫酸盐的高级氧化过程 （PS-AOP） 被认为是降解污染物的有效技术，而生成活性氧 （ROS） 的有效活化方法在 PS-AOP 中起着至关重要的作用。然而，内部电场介导的激活方法，如引入化学品和材料，通常受到其内在特性的限制。相反，外场的引入可以提供额外的能量，从外部显着增强 PS 活化性能，作为促进 O O 键裂解的额外动力，从而提高 ROS 的生成效率。在这篇综述中，从基本原理到应用，全面概述了外部场增强型 PS-AOPs。具体来说，总结了不同外场下的激活机制、最新进展及其影响因素，以及外场增强型 PS-AOPs 的潜在实际应用。因此，从挑战的机会到挑战的观点被用于未来的研究。因此，本文有望对外场增强型 PS-AOPs 进行系统概述，为通过合理利用外场提高 PS-AOPs 的催化效率提供新的方向。