A facile synthesis of a highly efficient β-Bi2O3/Bi2O2CO3 heterojunction with enhanced photocatalytic NO oxidation under visible light

Autor:	Hao Yaru, Song Xijia, Zhao Ziquan, Deng Zhaoqi
Rok vydání:	2020
Předmět:	business.industry Annealing (metallurgy) Chemistry Heterojunction General Chemistry Catalysis Adsorption Semiconductor Chemical engineering Materials Chemistry Photocatalysis Charge carrier business Nanosheet Visible spectrum
Zdroj:	New Journal of Chemistry. 44:10989-10993
ISSN:	1369-9261 1144-0546
DOI:	10.1039/d0nj01325k
Popis:	The construction of a β-Bi2O3/Bi2O2CO3 heterojunction is an effective approach to separate the photogenerated charge carriers and to improve the photocatalytic performance of the semiconductor photocatalysts. In this study, a composite nanosheet of β-Bi2O3/Bi2O2CO3 was fabricated via an in situ annealing of Bi2O2CO3 at 380 °C. The composite showed an excellent adsorption toward NO and an enhanced photocatalytic efficiency over NO oxidation from 5.7 v/v% (bare Bi2O2CO3) to 32.5 v/v% (β-Bi2O3/Bi2O2CO3). Furthermore, the presence of the β-Bi2O3/Bi2O2CO3 heterojunction promoted the formation of additional ˙O2−, and then improved the NO oxidation activity and safety of BOC in conjunction with ˙OH.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8643b1f4fdab8d030611b1e3d107c45e https://doi.org/10.1039/d0nj01325k Zobrazit plný text záznamu