催化学报 ›› 2025, Vol. 78: 47-74.DOI: 10.1016/S1872-2067(25)64807-8

• 综述 • 上一篇    下一篇

光催化与生物降解协同系统在环境修复中的应用: 综述

曹瑞麟a, 潘园a, 张贤胜a, 黄馨怡a, 李腾a, 刘晟a, 王云泽a, 唐山青a, 邵彬彬b,*(), 刘智峰a,*()   

  1. a湖南大学环境科学与工程学院, 湖南大学环境生物与污染控制教育部重点实验室, 湖南长沙 410082
    b湖南大学设计学院, 湖南长沙 410082
  • 收稿日期:2025-05-06 接受日期:2025-07-16 出版日期:2025-11-18 发布日期:2025-10-14
  • 通讯作者: *电子信箱: shaobb@hnu.edu.cn (邵彬彬), zhifengliu@hnu.edu.cn (刘智峰).
  • 基金资助:
    国家自然科学基金(52100181);湖南省自然科学基金(2022JJ10011);中央高校基本研究经费(531118010885);湖南省自然科学基金(2025JJ50218)

The application of photocatalysis and biodegradation synergistic systems in environmental remediation: A review

Ruilin Caoa, Yuan Pana, Xiansheng Zhanga, Xinyi Huanga, Teng Lia, Sheng Liua, Yunze Wanga, Shanqing Tanga, Binbin Shaob,*(), Zhifeng Liua,*()   

  1. aHunan University and Key Laboratory of Environmental Biology and Pollution Control, College of Environmental Science and Engineering, Hunan University, Changsha 410082, Hunan, China
    bSchool of Design, Hunan University, Changsha 410082, Hunan, China
  • Received:2025-05-06 Accepted:2025-07-16 Online:2025-11-18 Published:2025-10-14
  • Contact: *E-mail: shaobb@hnu.edu.cn (B. Shao), zhifengliu@hnu.edu.cn (Z. Liu).
  • About author:Binbin Shao (School of Design, Hunan University) received his B.A. degree from Jiangxi University of Science and Technology (China) in 2015, and Ph.D. degree from College of Environmental Science and Engineering, Hunan University in 2020. He carried out postdoctoral research at College of Environmental Science and Engineering in Hunan University (China) from 2020 to 2023. Since the end of 2023, he has been working in School of Design, Hunan University. His research interests currently focus on wastewater treatment, advanced oxidation processes, solid waste treatment and resource utilization, life-cycle assessment, sustainable agriculture, sustainable design, etc. He has coauthored more than 70 peer-reviewed papers, with the total citations of these papers exceeding 8000 times, and his H-index is 52. He was invited as a Young Editorial Board Member of Eco-Environment & Health and Carbon Neutralization. He has been included in the list of World’s Top 2% Scientists from 2021-2024.
    Zhifeng Liu (College of Environmental Science and Engineering, Hunan University) received his Ph.D. degree from Hunan University in 2012. He is a specially-appointed professor of "Yuelu Scholar" at Hunan University, a doctoral supervisor, and an Elsevier Highly Cited Researcher. He mainly engages in research on soil and water environment management and ecological restoration, solid waste treatment and resource recovery. He has presided over more than 50 projects, published more than 140 papers, including more than 10 ESI hot papers and over 30 ESI highly cited papers, with his papers being cited more than 12000 times. He has applied for/been granted more than 80 international and domestic patents, with several achievements transferred to enterprises or put into practical application.
  • Supported by:
    National Natural Science Foundation of China(52100181);Hunan Provincial Natural Science Foundation of China(2022JJ10011);Fundamental Research Funds for the Central Universities(531118010885);Hunan Provincial Natural Science Foundation of China(2025JJ50218)

摘要:

随着工业化进程的加速及环境污染问题的日益严峻, 传统单一处理技术(如吸附、膜分离、生物降解等)在应对高毒性、难降解的新兴污染物(如抗生素、多环芳烃等)时, 显现出明显局限性. 光催化技术虽能利用太阳能实现污染物矿化, 但单一光催化过程中存在快速且不受控的化学反应, 常导致有害副产物积累和过度氧化残留物的产生. 此外, 仅依赖生物降解也难以有效降解高浓度、结构复杂的新兴污染物. 因此, 光催化与生物降解的协同技术(光催化与生物降解耦合(ICPB)系统、光催化微生物燃料电池(PMFCs))应运而生. 这类技术通过整合两者的优势, 突破单一技术的性能瓶颈, 提供了经济高效、环境友好且可持续的解决方案, 成为环境修复领域的研究热点.

本文系统地介绍了ICPB系统与PMFCs系统的研究进展. 首先概述了ICPB系统通过多孔载体实现光催化剂与微生物的协同作用: 光催化剂在光照下产生的活性氧物种(ROS)可将难降解污染物转化为中间产物, 或直接氧化为CO2和H2O; 生物膜则进一步将中间产物矿化为CO2和H2O, 即解决了光催化副产物积累与生物降解效率低的问题, 也提高了污染物去除效率. 该系统通过载体保护生物膜免受光催化氧化损伤, 同时利用微生物代谢产物促进光催化反应的持续进行. PMFCs系统则进一步将光催化与电化学过程结合, 实现能源回收与环境治理的双重功能. 该系统通过光生电子的定向传递与微生物代谢的协同作用, 显著提升了污染物的降解速率与能量转化效率. 随后, 针对系统优化, 研究重点围绕PMFCs的类型、ICPB载体的选择、光催化剂优化及微生物群落调控展开. 文中详细介绍了PMFCs系统的四个类型(生物阳极-光阴极、光阳极-生物阴极、ICPB阳极-阴极、光阳极-生物阳极-阴极)及其应用. 探讨了ICPB系统中常用载体(聚氨酯海绵)与生物相容性高的载体(生物质材料)等的实际应用. 概括了光催化剂的优化策略, 主要包含: (1)元素掺杂, 调整光催化剂的电子特性, 实现带隙缩小、光捕获增强和氧化还原电位调制; (2)半导体复合, 通过促进定向载流子转移来提高电荷分离和量子效率. 异质结的构建, 增强可见光吸收并促进有效的电子-空穴对分离; (3)表面修饰, 通过引入官能团、纳米颗粒或化学键来优化光吸收、电荷传输、活性位点密度和稳定性. 微生物群落的调控则通过驯化富集菌群或构建人工合成菌群, 提升污染物降解效率. 其后, 概述了ICPB系统与PMFCs在污染物去除方面的实际应用. 最后总结了光催化与生物降解协同技术所面临的挑战和未来的研究方向.

未来研究可以从以下方向突破: 加强跨学科合作, 开发低成本、长寿命的光催化材料, 探索新型反应器设计, 深化对光催化-生物协同机制的理解, 并借助人工智能与大数据技术优化工艺参数. 例如, 通过机器学习预测污染物降解路径, 动态调控光催化-生物协同过程; 开发兼具光催化活性与导电性的三维多孔载体, 提升传质效率与微生物附着能力等. 希望本文能够为构建高效实用的光催化-生物降解协同体系提供借鉴.

关键词: 光催化, 生物降解, 光催化-生物降解耦合系统, 光催化微生物燃料电池, 污水处理

Abstract:

The growing presence of emerging pollutants in the environment has led to a focus on developing new treatment technologies to address the limitations of traditional methods. Recent advancements in combining photocatalysis with biodegradation for pollutant treatment have garnered significant attention. This is due to the rapid and uncontrolled chemical reactions in single photocatalytic processes, which often result in the buildup of harmful by-products and over-oxidation residues. Additionally, relying solely on biodegradation is challenging for breaking down emerging pollutants that possess high concentrations and intricate structures. Therefore, the intimately coupled photocatalysis and biodegradation (ICPB) systems, along with the photocatalytic microbial fuel cells (PMFCs), as a new approach to treat pollutants. These systems combine the benefits of biodegradation and photocatalytic reactions, providing cost-effective, eco-friendly, and sustainable solutions with significant promise. In order to demonstrate the ICPB system and the PMFCs system as rational options for pollutant removal, the mechanisms of pollutant degradation by the two systems have been analyzed in depth, and recent advances in photocatalysts, biofilms, and carriers/configurations in the two systems have been summarized. Furthermore, the practical applications of the ICPB system versus the PMFCs system for pollutant removal are also summarized and highlighted. This review further points out the current limitations, such as photocatalytic materials that are still challenging in terms of commercial viability for practical applications, and looks forward to the prospects of the ICPB system versus the PMFCs system for the treatment of pollutants to promote practical applications.

Key words: Photocatalysis, Biodegradation, Intimately coupled photocatalysis and biodegradation system, Photocatalytic microbial fuel cells, Wastewater purification