Z-scheme Heterojunction Photocatalyst Based on Lanthanum Single-Atom Anchored on Black Phosphorus for Regulating Surface Active Sites, therefore Enhancing Photocatalytic CO_2 Reduction with ≈100 CO Selectivity

Qiuye Wang; Liyan Dong; Minze LiHonglai LuGuodong WeiYang QuGuofeng Wang

首页> 外文期刊>Advanced functional materials >Z-scheme Heterojunction Photocatalyst Based on Lanthanum Single-Atom Anchored on Black Phosphorus for Regulating Surface Active Sites, therefore Enhancing Photocatalytic CO_2 Reduction with ≈100 CO Selectivity

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Z-scheme Heterojunction Photocatalyst Based on Lanthanum Single-Atom Anchored on Black Phosphorus for Regulating Surface Active Sites, therefore Enhancing Photocatalytic CO_2 Reduction with ≈100 CO Selectivity

机译：Z-scheme Heterojunction Photocatalyst Based on Lanthanum Single-Atom Anchored on Black Phosphorus for Regulating Surface Active Sites, therefore Enhancing Photocatalytic CO_2 Reduction with ≈100 CO Selectivity

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The advent of Z-scheme heterojunction makes it possible to improve theCO_2 photoreduction efficiency of photocatalyst significantly. However, thereasonable construction of heterojunction and study of the photocatalyticmechanism remains a major challenge. Here, the Z-scheme heterojunctionphotocatalyst (BP:La/InVO_4:La) based on La single atom anchored on blackphosphorus for photocatalytic CO_2 reduction with ≈100 CO selectivity issuccessfully constructed. The CO generation rate of BP:La/5-InVO_4:La is≈7.9 and 4.9 times higher than black phosphorus and InVO_4, respectively.The results of X-ray photoelectron spectroscopy, photoluminescence, anddensity functional theory indicate that the BP:La/InVO_4:La belongs to theZ-scheme heterojunction, and the La single atom plays multiple roles suchas regulating surface active sites, promoting CO_2 absorption, and increasingO defects, which can further contribute to the improvement of photocatalyticperformance. The enhanced selectivity of the Z-scheme heterojunction is furtherdemonstrated by calculating the rate-determining steps and selectivitydeterminingsteps. The results are expected to provide unique ideas for therational design of rare earth composite photocatalyst.

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《Advanced functional materials》 |2022年第41期|2207330.1-2207330.11|共11页
作者
Qiuye Wang; Liyan Dong; Minze LiHonglai LuGuodong WeiYang QuGuofeng Wang;
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作者单位

Key Laboratory of Functional Inorganic Material Chemistry Ministryof Education School of Chemistry and Materials ScienceHeilongjiang UniversityHarbin 150080, P.R. China;

Materials Institute of Atomic and Molecular ScienceSchool of Physics and EnergyShaanxi University of Science and TechnologyXi’an, Shaanxi 710021, P.R. China;

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正文语种英语
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black phosphorus/InVO_4; density functional theory; La single-atom; visible light photocatalyses; Z-scheme heterojunctions;

Z-scheme Heterojunction Photocatalyst Based on Lanthanum Single-Atom Anchored on Black Phosphorus for Regulating Surface Active Sites, therefore Enhancing Photocatalytic CO_2 Reduction with ≈100 CO Selectivity

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