A review on TiO2−x-based materials for photocatalytic CO2 reduction. Issue 32 (2nd August 2022)

• Record Type: Journal Article
• Authors: Wang, Juan; Guo, Rui-tang; Bi, Zhe-xu; Chen, Xin; Hu, Xing; Pan, Wei-guo
• Is Part Of: Nanoscale. Volume 14:Issue 32(2022)
• Page Start: 11512
• Page End: 11528
• Publication Date: 2022-08-02
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/d2nr02527b
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : Photocatalytic CO2 reduction using TiO2− x -based materials. Abstract : Photocatalytic CO2 reduction technology has a broad potential for dealing with the issues of energy shortage and global warming. As a widely studied material used in the photocatalytic process, titanium dioxide (TiO2 ) has been continuously modified and tailored for more desirable application. Recently, the defective/reduced titanium dioxide (TiO2− x ) catalyst has attracted broad attention due to its excellent photocatalytic performance for CO2 reduction. In this perspective review, we comprehensively present the recent progress in TiO2− x -based materials for photocatalytic CO2 reduction. In detail, the review starts with the fundamentals of CO2 photocatalytic reduction. Then, the synthesis of a defective TiO2 structure is introduced for the regulation of its photocatalytic performance, especially its optical properties and dissociative adsorption properties. In addition, the current application of TiO2− x -based photocatalysts for CO2 reduction is also highlighted, such as metal–TiO2− x, oxide–TiO2− x and TiO2− x –carbon-based photocatalysts. Finally, the existing challenges and possible scope of photocatalytic CO2 reduction over TiO2− x -based materials are discussed. We hope that this review can provide an effective reference for the development of more efficient and reasonable photocatalysts based on TiO2− x .