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Defect engineering of photocatalysts for solar-driven conversion of CO2 into valuable fuels by Yiqiang He; Qiong Lei; Chunguang Li; Yu Han; Zhan Shi; Shouhua Feng is a Engineering article available to read on EtoBox.

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Photoreduction of CO 2 into valuable fuels is a clean and sustainable way to mitigate the energy crisis and environmental problems. Factors limiting the efficiency of CO 2 photoreduction include narrow-band light absorption, poor charge carrier separation and transport, and sluggish activation/reaction of CO 2 on the surface of photocatalyst. In recent years, defect engineering of photocatalysts emerges as an effective method to improve their efficiency in the photocatalytic conversion of CO 2 into useful fuels. This review is focused on discussing how structural defects can be used to modulate the electronic structure of the photocatalysts and activate the inert CO 2 molecules. Special emphasis is placed on the important impact of defects on the charge carrier dynamics of the photocatalysts. Our discussions cover a variety of defective semiconductors, including metal oxides, metal sulfides, and two dimensional materials. In addition, the challenges and prospects of defect engineering in photoreduction of CO 2 are also analyzed. This review aims to provide useful information about the fundamental principles of photoreduction of CO 2 and guidance on the design and preparation of def

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Author

Yiqiang He; Qiong Lei; Chunguang Li; Yu Han; Zhan Shi; Shouhua Feng

Publisher

Elsevier BV

Published

2021

Language

EN

Field

Engineering (Physical Sciences)