Room-Temperature Synthesis of Covalently Bridged MOP@TpPa-CH 3 Composite Photocatalysts for Artificial Photosynthesis.

The conversion of CO 2 into useful chemicals via photocatalysts is a promising strategy for resolving the environmental problems caused by the addition of CO 2 . Herein, a series of composite photocatalysts MOP@TpPa-CH 3 based on MOP-NH 2 and TpPa-CH 3 through covalent bridging have been prepared via a facile room-temperature evaporation method and employed for photocatalytic CO 2 reduction. The photocatalytic performances of MOP@TpPa-CH 3 are greater than those of TpPa-CH 3 and MOP-NH 2 , where the CO generation rate of MOP@TpPa-CH 3 under 10% CO 2 still reaches 119.25 μmol g -1 h -1 , which is 2.18 times higher than that under pure CO 2 (54.74 μmol g -1 h -1 ). To investigate the structural factors affecting the photocatalytic activity, MOP@TBPa-CH 3 without C═O groups is synthesized, and the photoreduction performance is also evaluated. The controlling experimental results demonstrate that the excellent photoreduction CO 2 performance of MOP@TpPa-CH 3 in a 10% CO 2 atmosphere is due to the presence of C═O groups in TpPa-CH 3 . This work offers a new design and construction strategy for novel MOP@COF composites.