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Advancements in s-scheme heterojunction materials for photocatalytic environmental remediation

Journal of Materials science & Technology 2024年第2期169卷 182-198页

作者： Changliang Nie Xiaohan Wang Ping Lu Yukun Zhu Xin Li Hua Tang school of Environmental science and Engineering State Key Laboratory of Bio-fibers and Eco-textilesQingdao UniversityQingdao266071China Institute of Biomass Engineering Key Laboratory of Energy Plants Resource and UtilizationMinistry of Agriculture and Rural AffairsSouth China Agricultural UniversityGuangzhou510642China school of Environmental science and Engineering Shandong UniversityQingdao266237China

Recently,s-scheme heterojunctions have gained considerable attention in the field of photocatalytic environmental remediation as their potential to achieve efficient spatial charge separation coupled with strong redox capacities.Herein,this review provides an overview of the current state-of-the-art in the development of s-scheme-based photocatalysts for the purification of environmental contaminants.The review first covers the fundamentals of heterogeneous photocatalysis for environmental purification.subsequently,an introduction to the background,mechanism,design principles,and characterization techniques of s-scheme heterojunctions is presented.Then,the review presents a comparison and summary of using various s-scheme photocatalysts for the removal of several target pollutants,such as bacteria,heavy metals,nitrogen oxides,antibiotics,and phenols.Additionally,the modification strategies of s-scheme heterojunction photocatalysts are also provided.Finally,a brief discussion of the challenges and prospects associated with s-scheme photocatalytic systems is demonstrated.

关键词： s-scheme heterojunctions Photocatalyst Pollutant Environmental remediation

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Review on multi-dimensional assembled s-scheme heterojunction photocatalysts

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Journal of Materials science & Technology 2023年第29期160卷 214-239页

作者： Jiani Lu shaonan Gu Hongda Li Yinan Wang Meng Guo Guowei Zhou Key Laboratory of Fine Chemicals in Universities of shandong Jinan Engineering Laboratory for Multi-scale Functional MaterialsSchool of Chemistry and Chemical EngineeringQilu University of Technology(Shandong Academy of Sciences)Jinan 250353China Liuzhou Key Laboratory for New Energy Vehicle Power Lithium Battery School of Electronic EngineeringGuangxi University of Science and TechnologyLiuzhou 545006China

s-scheme heterostructure photocatalysts utilize the synergistic and superposition effects of materials,ef-fectively separating electrons and holes,maintaining strong redox capacity,and addressing issues en-countered by current photocatalytic reactions.This review explores the origins and unique benefits of s-scheme heterojunctions.specifically,we summarized and discussed the effects of different dimensions of semiconductors constituting s-scheme heterojunctions and the similarities and differences in elec-tron transfer processes when constructing heterojunctions.Additionally,we analyzed several methods for proving the formation of s-scheme heterojunctions and the electron transfer process,both directly and indirectly.Finally,we review the applications of s-scheme heterojunctions in various fields of photo-catalysis,including photocatalytic water splitting,pollution degradation,CO_(2) reduction and other related photocatalytic applications.Our hope is that this review will provide an essential reference for the devel-opment and application of s-scheme heterojunction photocatalysis.

关键词： s-scheme heterojunctions Multi-dimensional assembled structures Photocatalysis Water splitting Pollution degradation Co_(2)reduction

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