Direct Z‐Scheme Heterojunction of SnS2/Sulfur‐Bridged Covalent Triazine Frameworks for Visible‐Light‐Driven CO2 Photoreduction. Issue 23 (15th May 2020)

• Record Type: Journal Article
• Authors: Guo, Shien; Yang, Peng; Zhao, Yanfei; Yu, Xiaoxiao; Wu, Yunyan; Zhang, Hongye; Yu, Bo; Han, Buxing; George, Michael W.; Liu, Zhimin
• Is Part Of: ChemSusChem. Volume 13:Issue 23(2020)
• Page Start: 6278
• Page End: 6283
• Publication Date: 2020-05-15
• Subjects: CO2 reduction -- covalent triazine frameworks -- photocatalysis -- SnS2 -- Z-Scheme heterojunction; Green chemistry -- Periodicals; Sustainable engineering -- Periodicals; Chemistry -- Periodicals; Chemical engineering -- Periodicals; 660
• DOI: 10.1002/cssc.202000712
• Languages: English
• ISSNs: 1864-5631

Abstract

Abstract: Solar‐driven reduction of CO2 into renewable carbon forms is considered as an alternative approach to address global warming and the energy crisis but suffers from low efficiency of the photocatalysts. Herein, a direct Z‐Scheme SnS2 /sulfur‐bridged covalent triazine frameworks (S‐CTFs) photocatalyst (denoted as SnS2 /S‐CTFs) was developed, which could efficiently adsorb CO2 owing to the CO2 ‐philic feature of S‐CTFs and promote separation of photoinduced electron–hole pairs. Under visible‐light irradiation, SnS2 /S‐CTFs exhibited excellent performance for CO2 photoreduction, yielding CO and CH4 with evolution rates of 123.6 and 43.4 μmol g −1 h −1, respectively, much better than the most catalysts reported to date. This inorganic/organic hybrid with direct Z‐Scheme structure for visible‐light‐driven CO2 photoreduction provides new insights for designing photocatalysts with high efficiency for solar‐to‐fuel conversion. Abstract : From A to Z : A direct Z‐Scheme photocatalyst system comprised of sulfur‐bridged covalent triazine frameworks (S‐CTFs) and SnS2 nanosheets is developed, which shows excellent photocatalytic activity for CO2 conversion into CO and CH4 under visible‐light irradiation.