Journal
ENERGY & ENVIRONMENTAL SCIENCE
Volume 6, Issue 11, Pages 3229-3234Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ee41548a
Keywords
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Funding
- Singapore National Research Foundation (NRF) through the Singapore-Berkeley Research Initiative for Sustainable Energy (SinBeRISE) CREATE Programme
- Institute of NanoSystems Interface Sciences and Technologies (INSIST), Nanyang Technological University, Singapore
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To construct photocatalytically active MOFs, various strategies have recently been developed. We have synthesized and characterized a new metal-organic framework (MOF-253-Pt) material through immobilizing a platinum complex in 2,20-bipyridine-based microporous MOF (MOF-253) using a post-synthesis modification strategy. The functionalized MOF-253-Pt serves both as a photosensitizer and a photocatalyst for hydrogen evolution under visible-light irradiation. The photocatalytic activity of MOF-253-Pt is approximately five times higher than that of the corresponding complex. The presence of the short Pt...Pt interactions in the framework was revealed with extended X-ray absorption fine structure (EXAFS) spectroscopy and low temperature luminescence. These interactions play an important role in improving the photocatalytic activity of the resulting MOF.
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