A 3D binuclear salen-based multifunctional MOF: Degradation of MO dye and highly selective sensing of Fe3+

摘要

A rare 3D binucler salen metal-organic framework (MOF), [Cd(NiL)(PTA)]center dot DMAC(3) (1) [L = 1,2-cyclohex-anediamine-N,N'-bis(3-tert-butyl-5-(4-pyridyl))salicylidene, PTA = phthalic acid] was synthesized and characterized. Its structure was characterized by IR spectroscopy, single-crystal X-ray diffraction, powder X-ray and thermogravimetric analysis (TGA). Compound 1 shows high thermal stability and water stability. It is worth noting that the compound has excellent photocatalytic activity for the degradation of methyl orange (MO) dye under visible light irradiation. In addition, the complex 1 showed optical property and it can be used as a luminescent probe for Fe3+ simply and rapidly.