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Direct Z‐Scheme Heterojunction of SnS 2 /Sulfur‐Bridged Covalent Triazine Frameworks for Visible‐Light‐Driven CO 2 Photoreduction
Author(s) -
Guo Shien,
Yang Peng,
Zhao Yanfei,
Yu Xiaoxiao,
Wu Yunyan,
Zhang Hongye,
Yu Bo,
Han Buxing,
George Michael W.,
Liu Zhimin
Publication year - 2020
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.202000712
Subject(s) - triazine , covalent bond , visible spectrum , photocatalysis , photochemistry , heterojunction , catalysis , materials science , adsorption , chemistry , nanotechnology , optoelectronics , organic chemistry , polymer chemistry
Solar‐driven reduction of CO 2 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 SnS 2 /sulfur‐bridged covalent triazine frameworks (S‐CTFs) photocatalyst (denoted as SnS 2 /S‐CTFs) was developed, which could efficiently adsorb CO 2 owing to the CO 2 ‐philic feature of S‐CTFs and promote separation of photoinduced electron–hole pairs. Under visible‐light irradiation, SnS 2 /S‐CTFs exhibited excellent performance for CO 2 photoreduction, yielding CO and CH 4 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 CO 2 photoreduction provides new insights for designing photocatalysts with high efficiency for solar‐to‐fuel conversion.