A Review on Bi2WO6‐Based Materials for Photocatalytic CO2 Reduction

• Published in: Small (Weinheim an der Bergstrasse, Germany) Germany), 2024-12, Vol.20 (49), p.e2406074-n/a
• Main Authors: Li, Bo, Liu, Xiao‐jing, Zhu, Hao‐wen, Guan, Hua‐peng, Guo, Rui‐tang
• Format: Article
• Language: English
• Subjects: Bi2WO6; Bismuth compounds; Carbon dioxide; Chemical energy; Chemical synthesis; CO2 reduction; Continuous improvement; Crystal structure; Electromagnetic absorption; Harbor facilities; modification; Perovskites; Photocatalysis; properties; Reaction mechanisms; Solar energy; Tungstates
• ISSN: 1613-6810; 1613-6829; 1613-6829
• DOI: 10.1002/smll.202406074

Photocatalytic reduction of CO2 (PCR) technology offers the capacity to transmute solar energy into chemical energy through an eco‐friendly and efficacious process, concurrently facilitating energy storage and carbon diminution, this innovation harbors significant potential for mitigating energy shortages and ameliorating environmental degradation. Bismuth tungstate (Bi2WO6) is distinguished by its robust visible light absorption and distinctive perovskite‐type crystal architecture, rendering it highly efficiency in PCR. In recent years, numerous systematic strategies have been investigated for the synthesis and modification of Bi2WO6 to enhance its photocatalytic performance, aiming to achieve superior applications. This review provides a comprehensive review of the latest research progress on Bi2WO6 based materials in the field of photocatalysis. Firstly, outlining the fundamental principles, associated reaction mechanisms and reduction pathways of PCR. Then, the synthesis strategy of Bi2WO6‐based materials is introduced for the regulation of its photocatalytic properties. Furthermore, accentuating the extant applications in CO2 reduction, including metal‐Bi2WO6, semiconductor‐Bi2WO6 and carbon‐based Bi2WO6 composites etc. while concludes with an examination of the future landscape and challenges faced. This review hopes to serve as an effective reference for the continuous improvement and implementation of Bi2WO6‐based photocatalysts in PCR. This work reviews the mechanism, design, preparation, properties, and applications of Bi2WO6‐based photocatalysts applied in CO2 reduction. First, the photocatalytic principle and reduction pathway of CO2 are introduced. After that, the Bi2WO6‐based materials are described according to the preparation morphology, then their photocatalytic properties are introduced. Finally, the application of Bi2WO6‐based photocatalysts for CO2 reduction is categorized and discussed.