A new 3D high connection Cu-based MOF introducing a flexible tetracarboxylic acid linker: Photocatalytic dye degradation

Abstract

Metal-organic frameworks (MOFs) have brought as splendid class of multidimensional materials which can be explored as photocatalytic materials to degrade dyes present in waste-water discharge. Herein, a new MOF namely [Cu3(L)2(4,4′-bipy)] (1) (H3L = 1,3,5-tris(4-carbonylphenyloxy)benzene and4,4′-bipy = 4,4′-bipyridine), has been prepared and characterized. It was revealed that 1 features a three-dimensional (3,8)-connected framework with point symbol of (42.6)2(44.610.75.88.9) topology. The current photocatalysis results indicated that 1 has efficient photocatalytic performances to selectively degrade methylene blue (MB) when compared to the dyes methylene orange and Rhodamine B. A mechanistic investigation toward better discussion of the degradation process of MB was conducted by LC-MS methods.