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Shedding light on the role of interfacial chemical bond in heterojunction photocatalysis

Nano Research 2022年第12期15卷 10158-10170页

作者： Yueshuang Mao Pengfei Wang Sihui Zhan MOE Key Laboratory of Pollution Processes and Environmental Criteria College of Environmental Science and EngineeringNankai UniversityTianjin300350China Tianjin Key Lab Clean Energy&Pollutant Control School of Energy and Environmental EngineeringHebei University of TechnologyTianjin300401China

Faced with the growing consumption of fossil fuels and the consequent energy/ecological crisis,photocatalysis has become a realistic option to develop new energy source and realize the carbon *** photocatalysts constructed by multiple semiconductors with staggered band structure can spatially separate redox reaction sites to realize synergistic oxidation and reduction reactions,and have captured broad ***,the undesigned heterojunctions still encounter some headache difficulties,that is the poor interfacial contact,which will block carrier mobility,thus result in inefficient and instable ***,researchers have been focusing on constructing chemical bonds(especially covalent bonding)between different semiconductors to induce the formation of intimate and stable interface ***,this review article presents the state-of-the-art progress on interfacial chemical bonds(ICB)in heterojunction photocatalysts and clarifies the function mechanism for enhancing *** that the formation of ICB strongly depends on the surface characteristics of semiconductors,we clarify the formation mechanism and put forward rational design *** importantly,the current photocatalytic applications of ICB are reviewed to have a deep understanding of structure-activity related ***,our brief outlooks on the current challenges and future development trends of ICB for next-generation photocatalysts are pointed out to create brand-new strategies for optimizing photocatalytic properties and accelerate the practical applications of ICB with high-performance.

关键词： photocatalysis heterojunction interfacial chemical bond structure-activity relationships charge transfer

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