Abstract
A new paddle-wheel Cu(II) complex having formula [Cu(L)2(DMF)] (1) (HL = 2-fluorobenzoic acid) has been synthesized and characterized using FTIR and single crystal X-ray diffraction. The single crystal X-ray diffraction study indicates that the carboxylic acid ligand adopt bridging bidentate modes to coordinate Cu(II) centers thereby forming a binuclear copper(II)carboxylate type structure. The complex has been utilized as photocatalyst to photodegrade model aromatic dyes viz. methyl violet (MV) and rhodamine B (Rh B) in UV light. The photocatalytic results indicated that1 offered moderate photocatalytic activity and offers good stability after performing photocatalysis. The plausible mechanism through which 1 exerted photcatalytic property had been proposed by using density of states (DOS) and partial DOS calculations. KEY WORDS: Photocatalysis, Aromatic dyes, 2-Fluorobenzoic acid, Calculation Bull. Chem. Soc. Ethiop. 2019, 33(2), 285-292.DOI: https://dx.doi.org/10.4314/bcse.v33i2.9
Highlights
The photocatalytic materials which are based on coordination complexes and metal-organic frameworks (MOFs) are gradually becoming a promising area of investigation as this class of materials offers good photocatalytic efficiency [1,2]
The results indicated that approximately 70% of methyl violet (MV) and 41% of rhodamine B (Rh B) have been decomposed after 45 min irradiation [22]
It had been demonstrated that central Cu(II) center and the coordinated ligands may get involved in the photocatalytic degradation of aromatic dyes [21]
Summary
The photocatalytic materials which are based on coordination complexes and metal-organic frameworks (MOFs) are gradually becoming a promising area of investigation as this class of materials offers good photocatalytic efficiency [1,2]. Hou et al have explored the polynuclear MOF based materials and tested them as photocatalyst for degradation of organic dyes [6]. These results indicated that the coordination complexes have high photocatalytic activities towards dye degradation due to different kinds of nuclei which form the cluster units [6].
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