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Tuning the exposure of BiVO₄-{010} facets to enhance the N₂ photofixation performance.

ABSTRACT: Effective separation of photoexcited carriers and chemisorption of the N₂ molecule are two key issues to efficient nitrogen photofixation. The spatial charge separation of BiVO₄ 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 BiVO₄. Accordingly, in this study, enhanced N₂ photofixation performance has been achieved for the first time by tuning the exposure of {010} facets of BiVO₄.

SUBMITTER: Chu H

PROVIDER: S-EPMC9038164 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature

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Tuning the exposure of BiVO4-{010} facets to enhance the N2 photofixation performance.

Chu Honghao H Zheng Shisheng S Li Yang Y Xu Kuanda K Hong Qingshui Q Li Tangyi T Ren Wenju W Li Shunning S Mei Zongwei Z Pan Feng F

RSC advances 20210827 46

Effective separation of photoexcited carriers and chemisorption of the N2 molecule are two key issues to efficient nitrogen photofixation. The spatial charge separation of BiVO4 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) f ...[more]

PMID: 35478558

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