Encapsulation of Polymetallic Oxygen Clusters in a Mesoporous/Microporous Thorium-Based Porphyrin Metal-Organic Framework for Enhanced Photocatalytic CO Reduction.

Solar-initiated CO reduction is significant for green energy development. Herein, we have prepared a new mesoporous/microporous porphyrin metal-organic framework (MOF), , loaded with polymetallic oxygen clusters (POMs) to form a composite material POMs@ for visible-light-driven photocatalytic CO reduction. The as-made composite material exhibits good stability in water from pH 0 to 11. After POMs were introduced to , they showed superior activity toward photocatalytic CO reduction with a CO production rate of 970 μmol·g·h, which is 3.27 times higher than that of pristine . This study opens a new door for the design and synthesis of high-performance catalysts for the photocatalytic reduction of CO.