Synergetic effect of H<sup>+</sup> adsorption and ethylene functional groups of covalent organic frameworks on the CO<sub>2</sub> photoreduction in aqueous solution
Jie Zhou, Jinxian Cui, Man Dong, Chunyi Sun, Siqi You, Xinlong Wang, Ziyan Zhou, Zhong-Min Su
Abstract
We prepare a novel COF for CO2 photoreduction with 99.9% CO selectivity in aqueous solution without a cocatalyst. DFT shows that the preferential adsorption of H+ on the COF results in increased CO2 adsorption energy providing an anchoring site of CO2, and with the cooperation of an ethylene group, CO2 reduction is triggered.
Topics & Concepts
AdsorptionAqueous solutionCovalent bondEthyleneChemistryPhotochemistryPolymer chemistryInorganic chemistryOrganic chemistryCatalysisCovalent Organic Framework ApplicationsAdvanced Photocatalysis TechniquesMetal-Organic Frameworks: Synthesis and Applications