Sheik Moideen Thaha S K, Sathishkumar Panneerselvam
Ultrasonics and Advanced Photochemistry Lab, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology Vellore 632014 India
RSC Adv. 2025 Aug 7;15(34):28093-28120. doi: 10.1039/d5ra04096e. eCollection 2025 Aug 1.
The 6 and 12 Sustainable Development Goals (SDGs) focus on reducing environmental pollution and improving sanitation through responsible production and consumption. However, current wastewater treatment technologies fall short, with projections indicating that up to 4.8 billion people may face health issues due to inadequate water purification by 2030. Preventing environmental problems is more effective than addressing their consequences. Hybrid advanced oxidation processes (h-AOPs), such as sonophotocatalysis, offer a sustainable and efficient method for catalytic conversion, decomposing environmental toxins in water without secondary pollution. Recently, MXene-based nanocatalysts have attracted attention due to their unique properties, including high surface area, excellent adsorption capabilities, and internal electric fields, making them ideal for AOP-related applications. This review comprehensively discusses the synergistic benefits of sonophotocatalysis for the degradation of various organic pollutants, sustainable synthesis routes for MXene and its precursor (MAX) and their alignment with SDG targets. We have reviewed various reports on MXene-based nanocatalysts for contaminant mineralization, systematically tabulated recent advancements. The optical properties and heterojunction-driven charge carrier migration were discussed with respect to novel MXene-based nanocomposites. Finally, future perspectives on MXene-based nanoarchitectures, synergistic ultrasonic approaches and greener approaches to minimize secondary pollution are outlined to support effective AOP-assisted wastewater treatment.
可持续发展目标6和12聚焦于通过负责任的生产和消费来减少环境污染并改善卫生条件。然而，当前的废水处理技术存在不足，据预测，到2030年，多达48亿人可能因水净化不足而面临健康问题。预防环境问题比解决其后果更有效。混合高级氧化工艺（h-AOPs），如声光催化，提供了一种可持续且高效的催化转化方法，可分解水中的环境毒素且无二次污染。最近，基于MXene的纳米催化剂因其独特性能受到关注，这些性能包括高表面积、优异的吸附能力和内部电场，使其成为与AOP相关应用的理想选择。本文综述全面讨论了声光催化降解各种有机污染物的协同效益、MXene及其前驱体（MAX）的可持续合成路线以及它们与可持续发展目标的契合度。我们回顾了关于基于MXene的纳米催化剂用于污染物矿化的各种报告，系统地列出了近期进展。针对新型基于MXene的纳米复合材料讨论了光学性质和异质结驱动的电荷载流子迁移。最后，概述了基于MXene的纳米结构、协同超声方法以及减少二次污染的更绿色方法的未来前景，以支持有效的AOP辅助废水处理。
