Chinese Journal of Catalysis ›› 2023, Vol. 54: 88-136.DOI: 10.1016/S1872-2067(23)64536-X

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Recent advances of photocatalytic coupling technologies for wastewater treatment

Ziye Zhenga, Shuang Tiana, Yuxiao Fenga, Shan Zhaoa, Xin Lib, Shuguang Wanga,c, Zuoli Hea,*()   

  1. aShandong Key Laboratory of Water Pollution Control and Resource Reuse, Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, Shandong, China
    bInstitute of Biomass Engineering, Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, Guangdong, China
    cWeihai Research Institute of Industrial Technology of Shandong University, Shandong University, Weihai 264209, Shandong, China
  • Received:2023-07-25 Accepted:2023-09-20 Online:2023-11-18 Published:2023-11-15
  • Contact: *E-mail: zlhe@sdu.edu.cn (Z. He).
  • About author:Zuoli He (School of Environmental Science and Engineering, Shandong University) received Ph.D. in Electronic Science and Technology at Xi'an Jiaotong University in 2015. He spent one year at the University of Utah as a visiting researcher (2013-2014), two years at the Division of Environmental Science and Engineering at Pohang University of Science and Technology (POSTECH) as a postdoctoral researcher (2015-2017), and another two years at Korea Institute of Materials Science (KIMS) as a senior researcher (2017-2019). His current research interests focus on functional nanostructured composite materials for photocatalytic solar energy conversion and applications in the energy and environmental fields (including multi-technology synergistic removal of organic pollutants, pollutant sensing and monitoring technologies, photolytic hydrogen production from water, interconversion of nitrogen-containing compounds, and photothermal catalytic synthesis). He has published more than 80 peer-reviewed papers.
  • Supported by:
    National Natural Science Foundation of China(22278245);Young Taishan Scholars Program of Shandong Province(tsqn201909026);Shandong University Future Youth Grant Program(61440089964189);Youth Interdisciplinary Science and Innovative Research Groups of Shandong University(2020QNQT014);Taishan Scholars Project of Shandong Province(tstp20230604)

Abstract:

As industrial advancements and population growth continue, environmental pollution has become an increasingly severe global concern. The discharge of both conventional and emergent refractory organic pollutants has led to an increasingly complex and diverse array of organic pollutants in water bodies. Photocatalysis is an environmentally friendly oxidation technology that holds significant promise for the degradation and mineralization of organic pollutants in wastewater. However, the practical application of photocatalysis is significantly limited by its low light utilization rate, challenging recovery process, and low quantum yield. To address these constraints, photocatalytic coupling technologies have emerged as a new approach. This review briefly discusses the mechanisms, research progress, and problems associated with photocatalysis for wastewater treatment. Subsequently, it provides an overview of research progress on technologies that couple photocatalysis with other water treatment technologies, and some typical research is highlighted to detail the advantages and mechanisms of various photocatalytic coupling technologies. Finally, the challenges and prospects for photocatalytic coupling technologies in wastewater treatment are presented. We hope this review will inspire more researchers to consider this important domain.

Key words: Photocatalysis, Coupling, Technology, Synergistic mechanism, Organic pollutant, Wastewater treatment