Self-assembly of metal-organic framework thin films containing metalloporphyrin and their photocatalytic activity under visible light.

With [5,10,15,20-tetra(4-carboxyphenyl)porphyrin]Mn(III) and sterically controlled 2,2¢-dimethyl-4,4¢-pyridine as the main raw materials, metal-organic framework thin films containingmetalloporphyrin (MnPor-MOF) with catalytically active sites were built up on functionalized quartz glass surfaces using a layer-by-layer self-assembly method. Retaining active catalytic sites and having a porous reticular structure, the MnPor-MOF films possessed remarkable photocatalytic activity for oxidative degradation of methylene blue in the presence of hydrogen peroxide under visible-light irradiation. Most meaningfully, the MnPor-MOF films were highly stable and simply and conveniently reusable, and are thus a potentially new organic material for photocatalytic wastewater treatment. [ABSTRACT FROM AUTHOR]