Premium
Coupling CsPbBr 3 Quantum Dots with Covalent Triazine Frameworks for Visible‐Light‐Driven CO 2 Reduction
Author(s) -
Wang Qi,
Wang Jin,
Wang JiChong,
Hu Xin,
Bai Yu,
Zhong Xinhua,
Li Zhengquan
Publication year - 2021
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.202002847
Subject(s) - photocatalysis , triazine , materials science , quantum dot , perovskite (structure) , photoelectric effect , adsorption , visible spectrum , covalent bond , charge carrier , photochemistry , quantum yield , nanotechnology , chemical engineering , catalysis , chemistry , optoelectronics , physics , optics , organic chemistry , fluorescence , engineering , polymer chemistry
Photocatalytic reduction of CO 2 into value‐added chemical fuels is an appealing approach to address energy crisis and global warming. CsPbBr 3 quantum dots (QDs) are good candidates for CO 2 reduction because of their excellent photoelectric properties, including high molar extinction coefficient, low exciton binding energy, and defect tolerance. However, the pristine CsPbBr 3 QDs generally have low photocatalytic performance mainly due to dominant charge recombination and lack of efficient catalytic sites for CO 2 adsorption/activation. Herein, we report a new photocatalytic system, in which CsPbBr 3 QDs are coupled with covalent triazine frameworks (CTFs) for visible‐light‐driven CO 2 reduction. In this hybrid photocatalytic system, the robust triazine rings and periodical pore structures of CTFs promote the charge separation in CsPbBr 3 and endow them with strong CO 2 adsorption/activation capacity. The resulting photocatalytic system exhibits excellent photocatalytic activity towards CO 2 reduction. This work presents a new photocatalytic system based on CTFs and perovskite QDs for visible‐light‐driven CO 2 reduction, which highlights the potential of perovskite‐based photocatalysts for solar fuel applications.