Interfacial Chemical Bond and Oxygen Vacancy-Enhanced In_2O_3/CdSe-DETA S-scheme Heterojunction for Photocatalytic CO_2 Conversion

Zhiwei Zhao; Zhongliao Wang; Jinfeng ZhangChunfeng ShaoKai DaiKe FanChanghao Liang

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Interfacial Chemical Bond and Oxygen Vacancy-Enhanced In_2O_3/CdSe-DETA S-scheme Heterojunction for Photocatalytic CO_2 Conversion

机译：Interfacial Chemical Bond and Oxygen Vacancy-Enhanced In_2O_3/CdSe-DETA S-scheme Heterojunction for Photocatalytic CO_2 Conversion

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The S-scheme heterojunctions have great potential for photocatalytic carbondioxide reduction due to their unique carrier migration pathways, superiorcarrier separation efficiencies, and high redox capacities. However, theprecise process of the oriented powerful electron transport remains a greatchallenge. Herein, an In-O-Cd bond-modulated S-scheme heterojunctionof In_2O_3/CdSe-DETA is synthesized by a simple microwave-assisted hydrothermalmethod for the accelerated photogenerated electron transfer. Meanwhile,the oxygen vacancies (Vo) of In_2O_3 have an electron capture effect.Consequently, thanks to the synergistic effect of this In-Vo-In-O-Cd structuralunits at the interface, electrons are extracted and rapidly transferredto the surface-active sites, which improves the electronic coupling of CO_2.This finding precisely adjusts the electron transfer pathway and shortensthe electron transfer distance. The synergistic effect of this chemical bondestablished in the S-scheme heterostructure with oxygen vacancies in In_2O_3(Vo-In_2O_3) provides new insights into photocatalytic CO_2 reduction.

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来源
《Advanced functional materials》 |2023年第23期|2214470.1-2214470.12|共12页
作者
Zhiwei Zhao; Zhongliao Wang; Jinfeng ZhangChunfeng ShaoKai DaiKe FanChanghao Liang;
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作者单位

Key Laboratory of Green and Precise Synthetic Chemistry andApplicationsMinistry of EducationHuaibei Normal UniversityHuaibei 235000, P. R. China;

State Key Laboratory of Fine ChemicalsDalian University of TechnologyDalian 116024, P. R. China;

Key Laboratory of Materials Physics and Anhui Key Laboratoryof Nanomaterials and NanotechnologyInstitute of Solid State PhysicsHefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031, P. R. China;

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正文语种英语
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In_2O_3/CdSe-DETA; In-O-Cd bonds; oxygen vacancies; photocatalytic CO_2 reduction reactions; s-scheme heterojunctions;

Interfacial Chemical Bond and Oxygen Vacancy-Enhanced In_2O_3/CdSe-DETA S-scheme Heterojunction for Photocatalytic CO_2 Conversion

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