首页|Z-scheme Bi4O5Br2/NH2-MIL-125(Ti)heterojunctions enable exceptional visible photocatalytic degradation of organic pollutant

Z-scheme Bi4O5Br2/NH2-MIL-125(Ti)heterojunctions enable exceptional visible photocatalytic degradation of organic pollutant

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One key strategy to enhance photocatalytic performance is to improve the transfer and separation efficiency of photogenerated carriers by building optimized heterojunctions.Herein,novel Bi4O5Br2/NH2-MIL-125(Ti)Z-scheme heterojunctions are fabricated and used as photocatalysts for organic pollutant photodegradation.The NH2-MIL-125(Ti)nanosheets are exfoliated via a self-de-veloped alkali solution stripping approach and then uni-formly decorated on Bi4O5Br2.The as-prepared Bi4O5Br2/NH2-MIL-125(Ti)presents more than 90％degradation of various pollutants,outperforming the counterpart individ-ual ones.The various characterization results suggest that the enhanced degradation rate is due to the more intimate face-to-face interfacial contact of the lamellar Z-scheme heterojunction materials,in which the migration path of carriers from the material's interior to the surface can be reduced,in turn enhancing migration efficiency and separation capability significantly.A possible photocat-alytic reaction mechanism is proposed based on the pho-toelectric behaviors,radical trapping experiments and liquid chromatography mass spectrometry analysis.This work promotes the development of new photocatalytic materials for heterojunctions with face-to-face interfacial contacts,as well as the effective purification of wastewater in environmental remediation.

Z-scheme heterojunctionsPhotocatalysisAlkaline solution strippingBi4O5Br2NH2-MIL-125(Ti)

Feng Huang、Muhammad Humayun、Gang Li、Ting-Ting Fan、Wen-Lin Wang、Yu-Lin Cao、Anton Nikiforov、Chun-Dong Wang、Jing Wang

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Key Laboratory of Analytical Science and Technology of Hebei Province,Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education,State Key Laboratory of New Pharmaceutical Preparations and Excipients,College of Chemistry and Materials Science,Hebei University,Baoding 071002,China

Energy,Water and Environment Lab,College of Humanities and Sciences,Prince Sultan University,11586 Riyadh,Saudi Arabia

Baoding Green Yijia Environmental Protection Technology Ltd,Baoding 071051,China

Physics Laboratory,Industrial Training Center,Shenzhen Polytechnic University,Shenzhen 518055,China

Department of Applied Physics,Ghent University,9000 Ghent,Belgium

School of Integrated Circuits,Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan 430074,China

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National Natural Science Foundation of ChinaNatural Science Foundation of Hebei provinceNatural Science Foundation of Hebei provinceNatural Science Foundation of Hebei provinceResearch Innovation Team of College of Chemistry and Environmental Science of Hebei UniversityShenzhen Science and Technology Innovation CommitteeBintuan Science and Technology ProgramBintuan Science and Technology Program

51302061E2014201076E2020201021E2023201019hxkytd2102JCYJ202001091414123082020DB0022022DB009

2024

10.1007/s12598-024-02688-8

稀有金属(英文版)
中国有色金属学会

稀有金属(英文版)

CSTPCDEI
影响因子：0.801
ISSN：1001-0521
年,卷(期)：2024.43(7)
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