Details

Autor(en) / Beteiligte

• Zhou, Tianhua
• Du, Yonghua
• Borgna, Armando
• Hong, Jindui
• Wang, Yabo
• Han, Jianyu
• Zhang, Wei
• Xu, Rong

Titel

Post-synthesis modification of a metal–organic framework to construct a bifunctional photocatalyst for hydrogen production

Ist Teil von

• Energy & environmental science, 2013-10, Vol.6 (11), p.3229-3234

Erscheinungsjahr

2013

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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 2,2'-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.