Abstract
Cu(II) and Mn(II) coordination polymers [Cu(ttpa)(sub)](n) (Cuttpa or 1) and {[Mn(2)(ttpa)(2)(nip)(2)(H(2)O)(2)]·3H(2)O}(n) (Mnttpa or 2) (ttpa = tris(4-(1,2,4-triazol-1-yl)phenyl)amine, H(2)sub = suberic acid, nip = 5-nitroisophthalicate) were hydrothermally prepared and the structures were characterized. Cuttpa exhibited a 2D (4,4) network based on [Cu(2)(COO)(4)] dimers with upper and lower dangled ttpa ligands and a 2D → 3D polythreaded network. Mnttpa showed a 2D (4,4) network with dangled uncoordinated triazole rings from ttpa ligands and nitro groups from nip(2-) ligands and a 2D → 3D polythreaded network. E(g) data of Cuttpa and Mnttpa were 1.88 eV and 2.11 eV. Cuttpa and Mnttpa exhibited good catalytic activity for the decomposition of methyl blue (MB) under visible light and supersound irradiation. The decomposition mechanism using Cuttpa was explored. The holes (h(+)) and (•)OH hydroxyl radicals played the main roles, and the (•)O(2)(-) superoxide radicals played certain auxiliary roles in the decomposition of MB within the Cuttpa catalyst.