MXene-based catalysts for water purification in the persulfate-based Fenton-like system

IF 6.3 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of water process engineering Pub Date : 2025-07-14 DOI:10.1016/j.jwpe.2025.108291

Mingmei Ding , Houzhen Zhou , Mingjing Ge , Zhiyun Jiang , Hang Xu , Xiaodong Jia , Emily Gao , Deepak Mallya , Li Gao

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Abstract

The rapid advancement of industrialization has led to widespread environmental contamination by persistent organic pollutants. These persistent organic pollutants, particularly Emerging Contaminants (ECs), exhibit extended environmental persistence and recalcitrance to degradation, presenting significant ecological and public health challenges. The Fenton-like reaction, a prominent advanced oxidation process (AOPs), has gained significant attention in water treatment research due to its rapid reaction kinetics and effective mineralization capability. MXenes have emerged as highly efficient heterogeneous catalysts for the Fenton-like reaction, owing to their large specific surface area, superior hydrophilicity, structural adaptability, and tunable surface chemistry. This review outlines the fundamental properties and synthesis methodologies of MXenes, with a dedicated focus on the latest research progress in loading transition metals and anchoring single atoms on MXenes. Synthesis methodologies and underlying mechanisms for loading transition metals and anchoring single atoms on MXene are systematically examined. This paper provides a detailed account of how MXene-based catalysts enhance their catalytic performance through strategies such as material structure, electron transfer pathways, and catalytic active sites, as well as the underlying reasons behind these enhancements. Additionally, the paper explores the impact of the persulfate-based AOPs on reaction kinetics under various conditions, while analyzing the corresponding reaction mechanisms. This paper also reviews the catalytic mechanisms for the generation of free radicals and non-free radical species in the persulfate-based Fenton-like system, with particular emphasis on the unique role of MXene-based catalysts in these processes. Finally, the challenges and opportunities faced by MXene-based catalysts in environmental remediation and industrial development were emphasized.

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过硫酸盐类芬顿体系中mxene基水净化催化剂的研究

工业化的快速发展导致了持久性有机污染物对环境的广泛污染。这些持久性有机污染物，特别是新兴污染物（ECs），表现出持久的环境持久性和难以降解性，对生态和公共卫生构成重大挑战。Fenton-like反应是一种突出的高级氧化工艺（AOPs），因其快速的反应动力学和有效的矿化能力在水处理研究中受到广泛关注。由于具有较大的比表面积、优异的亲水性、结构适应性和可调的表面化学性质，MXenes已成为类芬顿反应的高效非均相催化剂。本文综述了MXenes的基本性质和合成方法，重点介绍了在MXenes上加载过渡金属和锚定单原子的最新研究进展。合成方法和潜在的机制加载过渡金属和锚定单原子在MXene系统地检查。本文详细介绍了基于mxene的催化剂如何通过材料结构、电子转移途径和催化活性位点等策略增强其催化性能，以及这些增强背后的潜在原因。此外，本文还探讨了过硫酸盐基AOPs在不同条件下对反应动力学的影响，并分析了相应的反应机理。本文还综述了过硫酸盐基类芬顿体系中自由基和非自由基生成的催化机理，重点介绍了mxene基催化剂在这些过程中的独特作用。最后，强调了mxeni基催化剂在环境修复和产业发展中面临的挑战和机遇。

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来源期刊

Journal of water process engineering Biochemistry, Genetics and Molecular Biology-Biotechnology

CiteScore

10.70

自引率

8.60%

发文量

846

审稿时长

24 days

期刊介绍： The Journal of Water Process Engineering aims to publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing . Papers on advanced and novel treatment processes and technologies are particularly welcome. The Journal considers papers in areas such as nanotechnology and biotechnology applications in water, novel oxidation and separation processes, membrane processes (except those for desalination) , catalytic processes for the removal of water contaminants, sustainable processes, water reuse and recycling, water use and wastewater minimization, integrated/hybrid technology, process modeling of water treatment and novel treatment processes. Submissions on the subject of adsorbents, including standard measurements of adsorption kinetics and equilibrium will only be considered if there is a genuine case for novelty and contribution, for example highly novel, sustainable adsorbents and their use: papers on activated carbon-type materials derived from natural matter, or surfactant-modified clays and related minerals, would not fulfil this criterion. The Journal particularly welcomes contributions involving environmentally, economically and socially sustainable technology for water treatment, including those which are energy-efficient, with minimal or no chemical consumption, and capable of water recycling and reuse that minimizes the direct disposal of wastewater to the aquatic environment. Papers that describe novel ideas for solving issues related to water quality and availability are also welcome, as are those that show the transfer of techniques from other disciplines. The Journal will consider papers dealing with processes for various water matrices including drinking water (except desalination), domestic, urban and industrial wastewaters, in addition to their residues. It is expected that the journal will be of particular relevance to chemical and process engineers working in the field. The Journal welcomes Full Text papers, Short Communications, State-of-the-Art Reviews and Letters to Editors and Case Studies