Preparation, Characterization and Study of the Photodecolorization of Mixed-Ligand Binuclear Co(II) Complex of Schiff Base by ZnO

Autor: Suhad Kareem Abass, Jassim Abbas Al-Hilfi, Sawsan Khudhair Abbas, Luma Majeed Ahmed
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Indonesian Journal of Chemistry, Vol 20, Iss 2, Pp 404-412 (2020)
Druh dokumentu: article
ISSN: 1411-9420
2460-1578
DOI: 10.22146/ijc.44192
Popis: In this work, a new mixed-ligand binuclear Co(II) complex of Schiff base was prepared. Moreover, the characterization of this prepared complex was performed by measurement of melting points, UV-Vis spectra, FT-IR spectra, and magnetic susceptibility measurements, and later compared with metal and ligand solutions. It has been discovered that the Schiff bases with Co(II) ion forms a binuclear complex with a stoichiometry of molar ratio 1:2 from “metal:ligand”. The photodecolorization of this complex was done under UV light for ZnO's suspension solution. The results of this photodecolorization showed that the greatest efficiency was obtained with the use of ZnO dose of 300 mg/100 mL and at an initial pH of 7. The decolorization activation energy for this complex is a small value of 11.289 kJ mol–1. Additionally, the thermodynamic study for this reaction is non-spontaneous, endothermic and less random.
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