近日，大湾区城市环境安全与绿色发展教育部重点实验室学术骨干韩兰芳教授团队《Critical Reviews in Environmental Science and Technology》上发表了题为“Photocatalytic strategy to mitigate microplastic pollution in aquatic environments: Promising catalysts, efficiencies, mechanisms, and ecological risks”的重磅综述。

    论文DOI：https://doi.org/10.1080/10643389.2022.2072658

微塑料（MPs）作为一种新兴污染物广泛赋存于水环境中，破坏生态环境甚至威胁人类健康。2021年9月我国国家发展改革委、生态环境部联合印发《“十四五”塑料污染治理行动方案》中进一步将塑料污染治理作为工作重点之一。降低环境中MPs污染势在必行。在众多MPs污染控制技术中，光催化因其条件温和，成本低，且能源来源于太阳能等优势受到研究者广泛关注。本研究从评估MPs降解参数、技术路线以及所引发的生态风险三个层面出发，通过总结和梳理光催化MPs降解材料、关键机制以及可能协同反应的研究进展，以期为光催化降解MPs污染物提供新的见解，并进一步讨论了未来研究的方向。。

英文摘要：

As a type of emerging pollutants, microplastics (MPs) are widely detected in aquatic environments and attract increasing ecological concern worldwide. The mitigation strategy of MPs pollution in aquatic environments has thus become a research priority. Photocatalysis has recently received wide attention largely due to its high potential for MPs degradation. However, to gain an in-depth and comprehensive understanding of photocatalysis in MPs mitigation, we reviewed the up-to-date advancements regarding the key parameters for evaluating the photodegradation, promising photocatalysts, and key mechanisms; possible synergistic reactions were also illustrated. Especially, the modification of photocatalyst was analyzed and interpreted for improving the performance including doping metal, decorating functional group, etc. The relationship between the reactive oxygen species generation and the material structure was elucidated. Moreover, the ecological risks induced by photocatalysis were discussed. To take it a step further of today's photocatalysis in MPs degradation, future research should focus on (1) designing realistic photocatalytic materials to improve the efficiency of MPs degradation; (2) detailing the degradation mechanisms and synergistic reactions to better utilize the advantages of photocatalysis; and (3) quantitatively evaluating the ecological risks posed by the degradation intermediates and further developing recycling approaches.