New photocatalyst for the degradation of organic dyes based on [Co2(1,4-BDC)(NCP)2]•4nH2O

One metal-organic framework, [Co-2(1,4-BDC)(NCP)(2)]n center dot 4H(2)O (1) (1,4-H2BDC denotes benzene-1,4-dicarboxylic acid, HNCP denotes 2-(4-carboxyphenyl)imidazo(4,5-f)(1,10)phenanthroline), has been hydrothermally synthesized and characterized via single crystal X-ray diffraction, powder X-ray diffraction, thermogravimetric analysis and diffuse-reflectance UV-vis spectrum study. Compound 1 shows a 2D layer structure, which is further extended into a 3D supramolecular network structure through pi-pi stacking interactions. The photocatalytic study on compound 1 indicates that it is an active catalyst for the degradation of orange G, rhodamine B, methylene blue and methyl violet. (C) 2013 Elsevier B.V. All rights reserved.