Synergetic effect of H+ adsorption and ethylene functional groups of covalent organic frameworks on the CO2 photoreduction in aqueous solution.

2020 
We prepare a novel COF for CO2 photoreduction with 99.9% CO selectivity in aqueous solution without cocatalyst. DFT shows the preferential adsorption of H+ on COF results in increased CO2 adsorption energy providing an anchoring site of CO2, and with the cooperation of ethylene group, CO2 reduction is triggered.
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