Journal Article10.1021/ACSENERGYLETT.8B01658
Core@Shell CsPbBr3@Zeolitic Imidazolate Framework Nanocomposite for Efficient Photocatalytic CO2 Reduction
Zi-Cheng Kong,Jin-Feng Liao,Yu-Jie Dong,Yang-Fan Xu,Hong-Yan Chen,Dai-Bin Kuang,Cheng-Yong Su +6 more
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TL;DR: In this paper, a halide perovskite@metal-organic framework (MOF) composite photocatalyst with enhanced CO2 reduction activity was proposed, where a facile in situ synthetic procedure was employed to directly grow a zinc/cobalt-based zeolitic imidazolate framework (ZIF) coating on the surface of quantum dots.
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Abstract: The proper energy band structure and excellent visible-light responses enable halide perovskites as potential photocatalysts for CO2 reduction, but the conversion efficiency is still low due to the serious radiative recombination, low CO2 capturing ability, and poor stability. Here we illustrate the design and synthesis of a halide perovskite@metal–organic framework (MOF) composite photocatalyst with enhanced CO2 reduction activity. A facile in situ synthetic procedure is employed to directly grow a zinc/cobalt-based zeolitic imidazolate framework (ZIF) coating on the surface of CsPbBr3 quantum dots. The CsPbBr3@ZIF composite shows largely improved moisture stability, CO2 capturing ability, and charge separation efficiency. Moreover, the catalytic active Co centers in ZIF-67 can further accelerate the charge separation process and activate the adsorbed CO2 molecules, which leads to enhanced catalytic activity for gaseous CO2 reduction. This work would provide new insight for designing excellent perovskite...
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