Researchers Develop Photocatalytic Functional Materials for CO2 Photoreduction
Jun 17, 2014 Email"> PrintText Size
The greenhouse gas CO2 has attracted attention of the whole world due to the effect on climate change and environmental problem. Coordination polymers with large surface areas and holes are very attractive for application in the capture and chemical transformation of CO2. However, most the functional coordination polymers are not capable of highly harvesting visible light or lack strong photostability for CO2 photoreduction.
The research group headed by Prof. LUO Junhua at Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, have developed a strategy based on a highly light-harvesting Ir unit to assemble the Ir-CP bifunctional heterogeneous photocatalyst.
Ir-CP acts as both an efficient photosensitizer to harvest broad visible light and an effective catalytic active to photoreduce CO2 into HCOO-. The broad absorption in UV-visible region and long long-lived excited states of Ir unit makes the photocatalyst efficiently photoreduce CO2 in a heterogeneous system with a turnover frequency of 118.8 μmol (g of Cat.)-1 h-1, much higher than that of most other reported coordination polymer photocatalysts under similar conditions.
Moreover, the designed infinite [Y(OH)2(CO2)2]∞ chain structure in Ir-CP with bridging OH- highly improves the stability of the functionalized coordination polymer to greatly promote the recyclability of the photocatalyst. Results of this study have been published as a edge article in Chem. Sci. (Chem. Sci., 2014, doi:10.1039/C4SC00940A).
Previously, Prof. LUO's group had made a series of progress on molecular crystal photoelectric material materials, especially the polar molecules photoelectric material function materials ( J. Am. Chem. Soc., 2014, doi: 10.1021/ja504319x; Nat. Comm., 2014, 5: 4019 doi: 10.1038/ncomms 5019; Adv. Mater., 2013, 25, 4159; Adv. Funct. Mater., 2012, 22, 4855; Angew. Chem. Int. Ed., 2012, 51, 3871).
Ir-Y shows high photocatalytic activity for CO2 reduction (Image by Prof. LUO Junhua's group).
The greenhouse gas CO2 has attracted attention of the whole world due to the effect on climate change and environmental problem. Coordination polymers with large surface areas and holes are very attractive for application in the capture and chemical transformation of CO2. However, most the functional coordination polymers are not capable of highly harvesting visible light or lack strong photostability for CO2 photoreduction.
The research group headed by Prof. LUO Junhua at Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, have developed a strategy based on a highly light-harvesting Ir unit to assemble the Ir-CP bifunctional heterogeneous photocatalyst.
Ir-CP acts as both an efficient photosensitizer to harvest broad visible light and an effective catalytic active to photoreduce CO2 into HCOO-. The broad absorption in UV-visible region and long long-lived excited states of Ir unit makes the photocatalyst efficiently photoreduce CO2 in a heterogeneous system with a turnover frequency of 118.8 μmol (g of Cat.)-1 h-1, much higher than that of most other reported coordination polymer photocatalysts under similar conditions.
Moreover, the designed infinite [Y(OH)2(CO2)2]∞ chain structure in Ir-CP with bridging OH- highly improves the stability of the functionalized coordination polymer to greatly promote the recyclability of the photocatalyst. Results of this study have been published as a edge article in Chem. Sci. (Chem. Sci., 2014, doi:10.1039/C4SC00940A).
Previously, Prof. LUO's group had made a series of progress on molecular crystal photoelectric material materials, especially the polar molecules photoelectric material function materials ( J. Am. Chem. Soc., 2014, doi: 10.1021/ja504319x; Nat. Comm., 2014, 5: 4019 doi: 10.1038/ncomms 5019; Adv. Mater., 2013, 25, 4159; Adv. Funct. Mater., 2012, 22, 4855; Angew. Chem. Int. Ed., 2012, 51, 3871).
Ir-Y shows high photocatalytic activity for CO2 reduction (Image by Prof. LUO Junhua's group).
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