Syntheses of two copper metal-organic frameworks with tri(1,2,4-triazole) and biscarboxylate and graphene oxide composites for decomposition of dye by visible-light driven and ultrasonic assisted

Two crystalline and nano-sized new Cu(II) MOFs {[Cu(ttpa)(1,3-bdc)(H2O)]·CH3OH}n (Cu(ttpa)-1) {[Cu(ttpa)(mip)(H2O)]•2H2O} (Cu(ttpa)-2) were prepared characterized (ttpa ​= ​tris(4-(1,2,4-triazol-1-yl)phenyl)amine, 1,3-bdc ​1,3-benzenedicarboxylate, mip ​5-methyl-isophthalate) by hydrothermal method sonochemical method. Cu(ttpa)-1 Cu(ttpa)-2 exhibited the 2D network with point symbol {44⋅62}{44⋅62}. The effect of sonicated time, power, frequency temperature on morphology studied. [email protected]%GO composites (GO ​graphite oxide) highest activities. catalytic decomposition methylene blue (MB) using Cu(ttpa)-1, Cu(ttpa)-2, Cu(ttpa)[email protected] examined under visible light ultrasound. high degradation efficiency. efficiency MB for was 91.2% at pH ​8 after 15 ​min irradiation photocatalytic rate constant (k) 0.1165 ​min−1. •OH hydroxyl radicals •O2- superoxide main active matters catalyst in MB. has higher than most MOFs, inorganic photocatalysts. is good material.