文献类型：期刊文献

英文题名：Ultra-fast construction of CuBi2O4 films supported Bi2O3 with dominant (020) facets for efficient CO2 photoreduction in water vapor

作者：Shi, Weina[1,3];Wang, Ji-Chao[2];Guo, Xiaowei[1,3];Tian, Hong-Ling[2];Zhang, Wanqing[2];Gao, Huiling[2];Han, Huijuan[2];Li, Renlong[2];Hou, Yuxia[2]

通讯作者：Wang, JC[1];Hou, YX[1]

机构：[1]Xinxiang Univ, Sch Chem & Mat Engn, Xinxiang 453000, Henan, Peoples R China;[2]Henan Inst Sci & Technol, Coll Chem & Chem Engn, Xinxiang 453000, Henan, Peoples R China;[3]Xinxiang Univ, Henan Photoelectrocatalyt Mat & Micronano Applica, Xinxiang 450003, Henan, Peoples R China

第一机构：新乡学院

通讯机构：[1]corresponding author), Henan Inst Sci & Technol, Coll Chem & Chem Engn, Xinxiang 453000, Henan, Peoples R China.

年份：2022

卷号：890

外文期刊名：JOURNAL OF ALLOYS AND COMPOUNDS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000706437200002)】；

基金：This work was supported by the financial supports of National Natural Science Foundation of China (Nos. 51802082 and 51903073), Natural Science Foundation of Henan Province (No. 212300410221), Program for Science & Technology Innovation Talents in Universities of Henan Province (No. 21HATIT016), Key Scientific Research Project of Colleges and Universities in Henan Province (No. 21A430030 and 20A150017), Key Scientific and Technological Project of Henan Province (No. 212102210473 and 202102310595) and "Climbing" Project of Henan Institute of Science and Technology (No. 2018CG04).

语种：英文

外文关键词：Photocatalysis; CO2 reduction; CuBi2O4/Bi2O3; Exposed facets; S-scheme

摘要：CuBi2O4/Bi2O3 thin film was synthesized on the commercial glass by a spray pyrolysis-calcination method. The monoclinic phase Bi2O3 with dominant (0 2 0) facets was grown on the surface of tetragonal phase CuBi2O4 by the temperature control of spraying process. Photocatalytic activities of the synthesized materials for CO2 reduction were measured in the presence of water vapor under visible light irradiation (lambda > 400 nm). The CO, CH4 and O-2 yields of the optimal composite film reached 247.62, 119.27 and 418.00 mu mol/m(2) after 12 h of irradiation. The composite film resisted physical damage and showed good photocatalytic activity in the cycling tests. Moreover, it was found that the types of main products changed with the light intensity and their yields varied with the light wavelength. The exposed (0 2 0) facets efficiently improved the adsorbed ability for H2O molecules. Meanwhile, the hydrophobicity of the film surface ensured that the adsorbed sites of CO2 were unoccupied by abundant H2O molecules. The S-scheme charge transfer mechanism was further confirmed by the interlaced band alignment of the CuBi2O4/Bi2O3 heterostructure and the controlled experiment with different light conditions. The results gained in this report may open up an avenue to design advanced S-scheme heterostructures with suitable transitional-metal oxides for photoreduction CO2 to solar fuels. (C) 2021 Elsevier B.V. All rights reserved.