Constructing Robust Interfacial Chemical Bond Enhanced Charge Transfer in S-Scheme 3D/2D Heterojunction for CO2 Photoreduction

被引：28

作者：

Feng, Yilin ^{[1
,2
]}

Gong, Xiu ^{[1
,2
]}

Fan, Shuhan ^{[1
,2
]}

Jiang, Zhuojun ^{[1
,2
]}

Yang, Jingliang ^{[1
,2
]}

Qu, Yunpeng ^{[1
,2
]}

Chen, Yanli ^{[1
,2
]}

Peng, Qiong ^{[1
,2
]}

Ding, Junfei ^{[1
,2
]}

Shen, Hui ^{[1
,2
]}

Qi, Xiaosi ^{[1
,2
]}

Wang, Mingkui ^{[3
]}

机构：

[1] Guizhou Univ, Coll Phys, Guiyang 550025, Peoples R China

[2] Guizhou Univ, Guizhou Prov Key Lab Photoelect Technol & Applicat, Guiyang 550025, Peoples R China

[3] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China

来源：

ADVANCED FUNCTIONAL MATERIALS | 2024年 / 34卷 / 39期

关键词：

3D/2D-hollow structure; CO2; reduction; high selectivity; interfacial chemical bonds; S-scheme heterojunctions; HETEROSTRUCTURE; PHOTOCATALYST; REDUCTION;

D O I：

10.1002/adfm.202403502

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A stable ZnTe@Cs3Sb2I9 catalyst with 3D/2D-hollow-composite structure is constructed for CO2 photocatalytic reduction via the in situ growth of Cs3Sb2I9 nanosheets on hollow ZnTe microspheres using lattice matching. The formed Tellurium-Antimony (Te & horbar;Sb) bonds improved the poor contact at the heterojunction interface, effectively promoted charge separation, and successfully suppressed photocorrosion. The unique core-shell structure not only strengthens light absorption but also improves CO2 adsorption capacity. Consequently, the S-scheme heterojunction with the synergistic effect of chemical bonds and 3D/2D-hollow-composite structure significantly enhances photocatalytic performance. The ZnTe@Cs3Sb2I9 photocatalyst offers a CO selectivity of 90.5%, which is higher than that of pure ZnTe (22.9%) and Cs3Sb2I9 (56.9%). This structure holds great promise for practical applications in CO2 photocatalytic reduction.

引用

页数：10

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