Tuning photocatalytic performance of Cs_(3)Bi_(2)Br_(9)perovskite by g-C_(3)N_(4)for C(sp^(3))–H bond activation
作者机构：Advanced Catalytic Engineering Research Center of the Ministry of EducationState Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan UniversityChangsha 410082China Key Laboratory of Mineral Cleaner Production and Exploit of Green Functional Materials in Hunan ProvinceJishou UniversityJishou 416000China College of Chemical EngineeringFuzhou UniversityFuzhou 350002China
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2023年第16卷第5期
页 面：6104-6112页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 070303[理学-有机化学] 0703[理学-化学]
基 金：the National Natural Science Foundation of China(Nos.21938002,21725602,21776064,and 21975069) the Innovative Research Groups of Hunan Province(No.2019JJ10001) Science and Technology Planning Project of Hunan Province(No.2019RS3010) C.T.Au thanks HNU for an adjunct professorship
主 题：photocatalysis Cs_(3)Bi_(2)Br_(9)/g-C_(3)N_(4)heterojunction selective oxidation toluene benzaldehyde
摘 要：All-inorganic halide perovskite(IHP)has been deemed promising in photocatalysis due to tunable bandgap and long lifetime of charge ***,unsatisfactory photocatalytic activity and low stability prevent its practical *** construction of heterojunctions has been proved to be an efficient way to circumvent these ***,g-C_(3)N_(4)nanosheet was employed to construct a 2D/2D(2D:two-dimensional)heterostructure with Cs_(3)Bi_(2)Br_(9)through an electrostatic self-assembly *** to the efficient transfer of photogenerated charge carriers,the activity of Cs_(3)Bi_(2)Br_(9)was boosted with enhanced generation of carbon centered *** optimized 10%Cs_(3)Bi_(2)Br_(9)/g-C_(3)N_(4)composite displays the highest benzaldehyde formation rate of 4.53 mmol·h^(−1)·g^(−1)under visible light,which is 41.8 and 2.3 times that of individual g-C_(3)N_(4)and Cs_(3)Bi_(2)Br_(9),*** stability of Cs_(3)Bi_(2)Br_(9)nanosheets and its selectivity for benzaldehyde(from 65%of Cs_(3)Bi_(2)Br_(9)to 90%of the composite)was enhanced by reducing its surface energy and tuning the reaction pathway,respectively.
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