Keggin-type polyoxometalates molecularly loaded in Zr-ferrocene metal organic framework nanosheets for solar-driven CO2 cycloaddition

[Display omitted] •Keggin-type polyoxometalates were molecularly loaded in Zr-ferrocene metal organic frameworks nanosheets.•The resulted composite offers excellent catalyst performance for CO2 cycloaddition under mild conditions.•MOFs-based solar-driven CO2 cycloaddition is first realized due to th...

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Published in:Applied catalysis. B, Environmental Environmental, 2021-11, Vol.296, p.120329, Article 120329
Main Authors: Fang, Zhou, Deng, Zheng, Wan, Xinyi, Li, Zhuoyi, Ma, Xu, Hussain, Shabab, Ye, Zhizhen, Peng, Xinsheng
Format: Article
Language:English
Subjects:
Carbon dioxide
Catalysts
Chemical synthesis
CO2 resource utilization
Cycloaddition
Light intensity
Luminous intensity
Metal-organic frameworks
Molecular dispersed polyoxometalates
Nanosheets
Photo-thermal Zr-Fc MOFs nanosheets
Photothermal conversion
Polyoxometallates
Recycling
Solar-driven cycloaddition
Styrene
Styrene oxide
Zirconium
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Summary:[Display omitted] •Keggin-type polyoxometalates were molecularly loaded in Zr-ferrocene metal organic frameworks nanosheets.•The resulted composite offers excellent catalyst performance for CO2 cycloaddition under mild conditions.•MOFs-based solar-driven CO2 cycloaddition is first realized due to the outstanding photothermal Zr-ferrocene nanosheets. Although Keggin-type polyoxometalates (POMs) have shown nice catalytic efficiency for CO2 cycloaddition reaction, they suppressed by their low recycling ability and energy costing of direct heating. Decorated POMs into solid porous support with photothermal property is an alternative but promising way for solar-driven reaction. Herein, phosphomolybdate molecularly decorated ferrocene-based Zr-Fc (PMo12@Zr-Fc) metal organic frameworks (MOFs) nanosheet, which has outstanding photothermal conversion ability, are synthesized and used to catalyze cycloaddition reaction with styrene oxide and CO2 under simulated sunlight. At light intensity of 0.4 W/cm2, the temperature of reactor with PMo12@Zr-Fc MOFs rapidly rises and up to 80 ℃, and 88.05 % yield of product is achieved. This PMo12@Zr-Fc catalyst also demonstrates nice recycling stability. The solar-driven cycloaddition process may exploit a new avenue for reusing CO2.
ISSN:0926-3373
1873-3883
DOI:10.1016/j.apcatb.2021.120329