首页|Tendencies of alloyed engineering in BiOX-based photocatalysts:a state-of-the-art review
Tendencies of alloyed engineering in BiOX-based photocatalysts:a state-of-the-art review
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Energy-saving and environmentally friendly photocatalysis has emerged as a popular research area in response to issues with energy scarcity and environmental degradation.Due to the unique layer-like structure,BiOX(Cl,Br,I)is frequently used in photocatalysis.However,inherent flaws in BiOX,such as an inappropriate band gap and low carrier separation efficiency,restrict its capacity for photocatalysis.Owing to the tunable grouping layer,alloying engineering is employed to optimize the intrinsic properties of BiOX and alloyed BiOX becomes a promis-ing photocatalytic material.This review describes the structure of BiOX,where tunable halogen layers provide favorable conditions for the implementation of alloying engineering to improve intrinsic properties.The article compares the effects and mechanisms of alloying engi-neering on the optimization of the energy band structure and carrier behavior of BiOX,and lists various modifica-tion methods used to improve the optimization of the intrinsic properties by alloying engineering,including defect engineering,morphology control as well as the synergy between alloying and other modification methods(bismuth-rich strategies,cation doping,construction of heterojunctions and plasma resonance effects).Subse-quently,applications of alloyed BiOX in energy and environmental fields are summarized,including contami-nant degradation,antibacterial,CO2 reduction,nitrogen fixation and organic synthesis.Finally,we summarize the current challenges and future directions of alloyed BiOX.It is expected that this work will provide guidance and assistance for an in-depth study and understanding of the mechanisms of alloying engineering to optimize intrinsic properties and design alloyed BiOX with higher photo-catalytic activity.
Tianjin Key Laboratory of Clean Energy and Pollutant Control,School of Energy and Environmental Engineering,Hebei University of Technology,Tianjin 300401,China
State-Province Joint Engineering Laboratory of Zeolite Membrane Materials,Institute of Advanced Materials,College of Chemistry and Chemical Engineering,Jiangxi Normal University,Nanchang 330022,China
Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation,School of Physics and Electronic Information,Anhui Province Industrial Generic Technology Research Center for Alumics Materials,Huaibei Normal University,Huaibei 235000,China
National Natural Science Foundation of ChinaKey Projects of Natural Science Research in Universities of Anhui ProvinceUniversity Synergy Innovation Program of Anhui Province
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