Selective Photocatalytic Conversion of Benzyl Alcohol to Benzaldehyde by Antimony(V) Porphyrin Metal-Organic Frameworks under Visible-Light Irradiation

摘要

Porphyrin-based MOFs have great structural tunability and prominent catalyst activity. In this work, a series of antimony porphyrin MOFs (PCN-224(Sb)-L) were synthesized to efficiently selective oxidate benzyl alcohol under visible light. To investigate the effects of the Sb-axial ligands on photocatalytic activity, the oxidation of benzyl alcohol to corresponding benzaldehyde was utilized as a model reaction. Within these three analogues of PCN-224(Sb)-L, PCN-224(Sb)-OH exhibit a remarkable 96 % conversation and 100 % selectivity of the benzaldehyde with an extremely high turnover number (TON) of 9300.