▎ 摘　　要

The crystalline and nano-sized {[Cu(tipe)(H2O)](2,2'-bpdc)center dot 11H(2)O center dot DMF}(n) (1.11H(2)O center dot DMF or Cu-tipe) (tipe = 1,1,2,2-tetrakis (imidazole-1-yl)phenyl)ethylene, 2,2'-bpdc = 2,2'-biphenyldicarboxylate) were synthesized and structural analysis by X-ray diffraction, scanning electron microscopy, optical band gaps, photoluminescence and thermal stability. Cu-tipe and graphene oxide (GO) nanocomposite (Cu-tipe/GO) was synthesized with sonochemical method and characterized. Cu-tipe exhibits a (4,4)-coordinated 2D network showing the point symbol {4(4).6(2)}{4(4).6(2)}. The photocatalytic and sonocatalytic decolorization of methylene blue (MB), methyl violet (MV), rhodamine B (RhB) under visible light and ultrasound irradiation showed that the catalytic efficiencies of decolorization organic dyes for Cu-tipe/GO composite are higher than these of most of MOF and MOF composite. Crystalline and nano-sized Cu-tipe also showed high decolization efficiencies. The radicals trapping experiments were carried out to study the active species and the degradation mechanism was proposed.