scholarly journals Selective CO2 reduction to HCOOH on a Pt/In2O3/g-C3N4 multifunctional visible-photocatalyst

RSC Advances ◽  
2020 ◽  
Vol 10 (38) ◽  
pp. 22460-22467 ◽  
Author(s):  
Jiehong He ◽  
Pin Lv ◽  
Jian Zhu ◽  
Hexing Li
Keyword(s):  
Visible Light ◽  
High Activity ◽  
Light Harvesting ◽  
Co2 Reduction ◽  
Visible Photocatalyst

A multifunctional Pt/In2O3/g-C3N4 catalyst exhibited high activity and selectivity to HCOOH during CO2 reduction owing to the synergy between visible-light harvesting, CO2 activation, HER, and photoelectron–hole separation via heterojunctions.

Ag/Ag2SO3 plasmonic catalysts with high activity and stability for CO2 reduction with water vapor under visible light

2016 ◽  
Vol 23 (18) ◽  
pp. 18369-18378 ◽  
Author(s):  
Da Wang ◽  
Yan Yu ◽  
Zhipeng Zhang ◽  
Huiying Fang ◽  
Jianmeng Chen ◽  
...  
Keyword(s):  
Water Vapor ◽  
Visible Light ◽  
High Activity ◽  
Co2 Reduction

A rhenium catalyst with bifunctional pyrene groups boosts natural light-driven CO2 reduction

2020 ◽  
Vol 22 (24) ◽  
pp. 8614-8622
Author(s):  
Li-Qi Qiu ◽  
Kai-Hong Chen ◽  
Zhi-Wen Yang ◽  
Liang-Nian He
Keyword(s):  
Electron Transfer ◽  
Visible Light ◽  
Light Harvesting ◽  
Co2 Reduction ◽  
Transfer Efficiency ◽  
Natural Light ◽  
Intermolecular Electron Transfer

A rhenium–pyrene catalyst that dramatically promotes sunlight-induced CO2RR efficiency was developed by enhancing intermolecular electron transfer efficiency and visible light-harvesting ability.

scholarly journals Ionic Liquid-Modified Porous Organometallic Polymers as Efficient and Selective Photocatalysts for Visible-Light-Driven CO2 Reduction

Research ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Zhi-Hua Zhou ◽  
Kai-Hong Chen ◽  
Song Gao ◽  
Zhi-Wen Yang ◽  
Liang-Nian He
Keyword(s):  
Ionic Liquid ◽  
Visible Light ◽  
Crucial Role ◽  
Light Harvesting ◽  
Co2 Reduction ◽  
Organometallic Polymers ◽  
Reduction Potentials ◽  
Visible Light Driven ◽  
Key Steps

In the photoreduction of CO2 to CO, the competitive H2 evolution is always inevitable due to the approximate reduction potentials of H+/H2 and CO2/CO, which results in poor selectivity for CO production. Herein, imidazolium-type ionic liquid- (IL-) modified rhenium bipyridine-based porous organometallic polymers (Re-POMP-IL) were designed as efficient and selective photocatalysts for visible-light CO2 photoreduction to CO based on the affinity of IL with CO2. Photoreduction studies demonstrated that CO2 photoreduction promoted by Re-POMP-IL functioning as the catalyst exhibits excellent CO selectivity up to 95.5% and generate 40.1 mmol CO/g of Re-POMP-IL1.0 (obtained by providing equivalent [(5,5′-divinyl-2,2′-bipyridine)Re(CO)3Cl] and 3-ethyl-1-vinyl-1H-imidazol-3-ium bromide) at 12 h, outperforming that attained with the corresponding Re-POMP analogue without IL, which highlights the crucial role of IL. Notably, CO2 adsorption, light harvesting, and transfer of photogenerated charges as key steps for CO2RR were studied by employing POMPs modified with different amounts of IL as photocatalysts, among which the CO2 affinity as an important factor for POMPs catalyzed CO2 reduction is revealed. Overall, this work provides a practical pathway to improve the CO2 photoreduction efficiency and CO selectivity by employing IL as a regulator.

Metal–organic framework (MOF) composite materials for photocatalytic CO2 reduction under visible light

2021 ◽  
Author(s):  
Zhen Han ◽  
Yaomei Fu ◽  
Yingchao Zhang ◽  
Xiao Zhang ◽  
Xing Meng ◽  
...  
Keyword(s):  
Composite Materials ◽  
Visible Light ◽  
Metal Organic Framework ◽  
Co2 Reduction ◽  
Metal Organic ◽  
Organic Framework

We designed and synthesized TVPT-MOFs, combined with g-C3N4, and the yield of CO2 reduction could reach 56 μmol·g−1·h−1.

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