Plasma-induced black bismuth tungstate as a photon harvester for photocatalytic carbon dioxide conversion

Autor:	Xingwang Zhu, Kang Zhong, Anqi Zhou, Junchao Qian, Huaming Li, Li Qidi, Guli Zhou, Hui Xu, Yingjie Hua, Zhaolong Wang, Jinman Yang
Rok vydání:	2021
Předmět:	chemistry.chemical_element General Chemistry Plasma Dielectric barrier discharge Catalysis Bismuth chemistry.chemical_compound chemistry Tungstate Chemical engineering Quantum dot Carbon dioxide Materials Chemistry Photocatalysis
Zdroj:	New Journal of Chemistry. 45:1993-2000
ISSN:	1369-9261 1144-0546
Popis:	The photocatalytic conversion of carbon dioxide into fuels and valuable chemicals is a promising avenue to address the challenge of environmental change. Plasma treatment as a popular and effective method to prepare and modify materials based on its ultra-high energy and efficiency has attracted significant attention. In this study, abundant Bi quantum dots (Bi QDs) are reduced in situ on the surface of black Bi2WO6 nanosheets using an effective dielectric barrier discharge (DBD) plasma technology. The reduction of Bi QDs leads to the generation of a large number of unsaturated coordination atoms, which improves the light absorption performance of Bi2WO6. Benefiting from the unique interface design, black Bi2WO6 shows superior CO generation rate, roughly threefold higher than that of pristine Bi2WO6 nanosheets. Our work provides new insights and can be a reference in plasma modification engineering of catalyst surfaces and photoreduction of CO2.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4177a649554bd5ea7c68c1f3108ef8c1 https://doi.org/10.1039/d0nj05082b Zobrazit plný text záznamu