Synthesis, Characterization of new azo-Schiff base chelating complex with new azo-base ligand by Template method and study the photo-decolorization of their complex with Pd(II) using NiCo2O4/Uv-A System

	Synthesis, Characterization of new azo-Schiff base chelating complex with new azo-base ligand by Template method and study the photo-decolorization of their complex with Pd(II) using NiCo2O4/Uv-A System
Al-Zahraa Journal for Health and Medical Sciences
Article 3, Volume 3, Issue 2, June 2025, Pages 36-55 PDF (1.35 M)
Document Type: Research Article
Abstract
In this work, a new Azo-Schiff base complex of Pd(II) ion prepared by Template method. The prepared metal complex characterized by analytical techniques viz., FT-IR, XRD, UV-visible, CHN elemental. The FT-IR spectra regions of the (M-O), (M-N) and (N=N) vibration stretching bonds indicate the coordination form of NPs prepared complex, while the XRD data allowed to calculate the mean crystallite size this NPs complex that equals to 26.4 nm. The analytical data demonstrated that the ratio of metal ion to ligand in this prepared complex is 1:2 with Octahedral structure. The maximum photo-decolonization efficiency of 7 ppm for Pd(II) complex in NiCo₂O₄suspension solution under UV-A light found to be 96.87% with half time 7.941min. The impact rising temperature on photo-decolonization process of this complex was enhanced the positive value of enthalpy. The negative activation energy value of this photoreaction may be attitude to happen several steps on NiCo₂O₄ surface leads to low positive value before happened the high negative value via series of chain reactions. On the other hand, the photo decolonization process for this complex is fast, less random and non-spontaneous.

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