Crystal facet modulation of Bi2WO6 microplates for spatial charge separation and inhibiting reverse reaction

We experimentally demonstrated that spatial charge separation can take place between the {010} and {001} facets of Bi2WO6 microplates. Further assembly of the reduction and oxidation cocatalysts leads to a remarkable enhancement of photocatalytic water oxidation activity in the presence of Fe3+ ions...

Full description

Saved in:
Bibliographic Details
Published inChemical communications (Cambridge, England) Vol. 57; no. 88; pp. 11637 - 11640
Main Authors Adenle, Abraham, Zhou, Hongpeng, Tao, Xiaoping, Zhao, Yue, Shi, Ming, Zeng, Bin, Qu, Jiangshan, Li, Rengui, Li, Can
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 04.11.2021
Subjects
Bismuth compounds
Ferric ions
Oxidation
Photocatalysis
Separation
Solar energy conversion
Tungstates
Work functions
Online AccessGet full text

Cover

More Information
Summary:We experimentally demonstrated that spatial charge separation can take place between the {010} and {001} facets of Bi2WO6 microplates. Further assembly of the reduction and oxidation cocatalysts leads to a remarkable enhancement of photocatalytic water oxidation activity in the presence of Fe3+ ions while the reverse oxidation of Fe2+ to Fe3+ ions is totally inhibited. The origin of the driving force is theoretically proven to be the difference in surface work function between the co-exposed facets, which shows a feasible strategy for developing efficient photocatalysts for solar energy conversion.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1359-7345
1364-548X
DOI:10.1039/d1cc04942a