@article{WANG2023, 
author = {Zhenyu WANG and Yancai LIU and Kun CHEN and Jianghao QIAO and Xiaowei LI},
title = {Phase Structure Regulation and Photocatalytic Degradation Properties of α/β-Bi2O3 Films Prepared by Plasma Spraying-Chemical Vapor Deposition},
year = {2023},
journal = {Journal of the Chinese Ceramic Society},
volume = {51},
number = {7},
pages = {1800-1810},
keywords = {bismuth trioxide, film, plasma spraying, chemical vapor deposition, photocatalytic degradation},
url = {https://www.sciopen.com/article/10.14062/j.issn.0454-5648.20221089},
doi = {10.14062/j.issn.0454-5648.20221089},
abstract = {To obtain easily recycled photocatalyst and improve the reusing practicability for waste water treatment, Bi2O3 films were prepared by a plasma spray-chemical vapor deposition method, and the effects of deposition temperature and heat-treatment temperature on the morphology and phase composition of Bi2O3 films were investigated. The morphology and composition of the films were characterized by field-emission scanning electron microscopy, X-ray diffraction and high-resolution transmission electron microscopy. The band gaps of α/β-Bi2O3 at different heat treatment temperatures were determined by ultraviolet-visable diffuse reflectance spectrometry. The results show that the deposition temperature and heat-treatment temperature affect the microstructure of Bi2O3 films and the proportion of α and β phases, while the influence of deposition temperature is more dominant rather than that of heat-treatment temperature. The proportion of β phase gradually converts to α phase and the band gap of α-Bi2O3 and β-Bi2O3 increases when the heat-treatment temperature increases. The Bi2O3 films exhibit a good photocatalytic degradation performance for Methyl Orange and Bisphenol A.}
}