A new Zn(ii)-based 3D metal–organic framework with uncommon sev topology and its photocatalytic properties for the degradation of organic dyes

Abstract

A new d¹⁰-configuration based Zn(II) 3D metal–organic framework (MOF) with the formula {[Zn₄(NDC)_3.5(μ₄-OH)(DMF)]·1.7DMF}_n (1) has been synthesized using a 1,4-naphthalenedicarboxylic acid (H₂NDC) ligand and characterized. The single crystal X-ray diffraction results indicate that in the newly synthesized MOF, 7-connected [Zn₄(μ₄-OH)(COO)₇] clusters are formed which are extended by NDC²⁻ ligands to generate an uncommon sev topology. The photocatalytic properties of 1 in the photodegradation of model organic dyes viz. methyl violet (MV) and rhodamine B (Rh B) have been systematically investigated. The photocatalysis results demonstrated that 1 shows promising photocatalytic degradation activity against these organic dyes. The possible photocatalytic mechanism through which 1 displayed photocatalytic properties to photodegrade organic dyes has also been proposed with the aid of density of states (DOS) calculations.