Layered β-ZrNBr Nitro-Halide as Multifunctional Photocatalyst for Water Splitting and CO2 Reduction

被引：32

作者：

Bao, Yunfeng ^{[1
]}

Du, Shiwen ^{[1
]}

Shibata, Kengo ^{[2
]}

Guo, Xiangyang ^{[1
]}

Kamakura, Yoshinobu ^{[2
]}

Feng, Zhaochi ^{[1
]}

Huang, Yanqiang ^{[1
]}

Ishitani, Osamu ^{[2
]}

Maeda, Kazuhiko ^{[2
]}

Zhang, Fuxiang ^{[1
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis,iChEM, Dalian 116023, Liaoning, Peoples R China

[2] Tokyo Inst Technol, Sch Sci, Dept Chem, 2-12-1-NE-2 Ookayama,Meguro Ku, Tokyo 1528550, Japan

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2023年 / 62卷 / 04期

基金：

中国国家自然科学基金;

关键词：

CO2; Reduction; Nitro-Halides; Photocatalysis; Visible-Light Response; Water Splitting; SEMICONDUCTORS; ELECTRON; COMPLEX; ZRNCL; METAL; TIO2; ZRO2;

D O I：

10.1002/anie.202214273

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Developing mixed-anion semiconductors for solar fuel production has inspired extensive interest, but the nitrohalide-based photocatalyst is still in shortage. Here we report a layered nitro-halide beta-ZrNBr with a narrow band gap of ca. 2.3 eV and low defect density to exhibit multifunctionalities for photocatalytic water reduction, water oxidation and CO2 reduction under visible-light irradiation. As confirmed by the results of electron paramagnetic resonance (EPR) and density functional theory (DFT) calculations, the formation of anion vacancies in the nitro-halide photocatalyst was inhibited due to its relatively high formation energy. Furthermore, performance of beta-ZrNBr can be effectively promoted by a simple exfoliation into nanosheets to shorten the carrier transfer distance as well as to promote charge separation. Our work extends the territory of functional photocatalysts into the nitro-halide, which opens a new avenue for fabricating efficient artificial photosynthesis.

引用

页数：5

共 43 条

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