Tuning the exposure of BiVO-{010} facets to enhance the N photofixation performance

Effective separation of photoexcited carriers and chemisorption of the N 2 molecule are two key issues to efficient nitrogen photofixation. The spatial charge separation of BiVO 4 with anisotropic exposed facets, namely the transfer of photoexcited electrons and holes to {010} and {110} facets, resp...

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Bibliographic Details
Published inRSC advances Vol. 11; no. 46; pp. 2898 - 28911
Main Authors Chu, Honghao, Zheng, Shisheng, Li, Yang, Xu, Kuanda, Hong, Qingshui, Li, Tangyi, Ren, Wenju, Li, Shunning, Mei, Zongwei, Pan, Feng
Format Journal Article
Published 27.08.2021
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Summary:Effective separation of photoexcited carriers and chemisorption of the N 2 molecule are two key issues to efficient nitrogen photofixation. The spatial charge separation of BiVO 4 with anisotropic exposed facets, namely the transfer of photoexcited electrons and holes to {010} and {110} facets, respectively, helps to enhance the separation ability of photogenerated carriers. Theoretical calculation results predict that a surface oxygen vacancy is easier to form on the (010) facet than on the (110) facet of BiVO 4 . Accordingly, in this study, enhanced N 2 photofixation performance has been achieved for the first time by tuning the exposure of {010} facets of BiVO 4 . Effective separation of photoexcited carriers and chemisorption of the N 2 molecule are two key issues to efficient nitrogen photofixation.
Bibliography:10.1039/d1ra02739e
Electronic supplementary information (ESI) available. See DOI
ISSN:2046-2069
DOI:10.1039/d1ra02739e