@article{Shi2022, 
author = {Weina Shi and Ji-Chao Wang and Xiaowei Guo and Xiu Qiao and Fang Liu and Renlong Li and Wanqing Zhang and Yuxia Hou and Huijuan Han},
title = {Controllable synthesized step-scheme heterojunction of CuBi2O4 decorated WO3 plates for visible-light-driven CO2 reduction},
year = {2022},
journal = {Nano Research},
volume = {15},
number = {7},
pages = {5962-5969},
keywords = {CO2 reduction, WO3 plate, CuBi2O4, step-scheme (S-scheme), photocatalyst},
url = {https://www.sciopen.com/article/10.1007/s12274-022-4271-0},
doi = {10.1007/s12274-022-4271-0},
abstract = {Rational design and construction of step-scheme (S-scheme) photocatalyst has received much attention in the field of CO2 reduction because of its great potential to solve the current energy and environmental crises. In this study, a series of plate-like WO3/CuBi2O4 (WO/CBO) photocatalysts were synthesized. The CO and CH4 yields over optimal composite reached 1,115.8 and 67.2 µmol/m2 after 9 h visible light illumination (λ > 400 nm), which was higher than those of two pure catalysts in CO 2 photoreduction. The product yields slightly decreased in the 7th cycling. Besides, the staggered band structure of heterojunction was characterized by diffuse reflectance spectroscopy (DRS) and valence band-X-ray photoelectron spectroscopy (VB-XPS), and a S-scheme charge transfer mechanism was verified by detecting electron spin resonance (ESR) and XPS result about surface composition of WO/CBO catalyst in dark or light. This work may be useful for rational designing of S-scheme photocatalyst and provides some illuminating insights into the S-scheme transfer mechanism.}
}