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Bader, Ali Taleb
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Environmental Science Materials Science & Nanotechnology Physics

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Synthesis and Characterization of CuO and NiO Nanoparticles Derived from Schiff Base Complexes Bader, Ali Taleb; Al-qasii, Nada Ahmed Rasheed; Khaleel, Asmaa Mohammed Noori
Science and Technology Indonesia Vol. 9 No. 1 (2024): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2024.9.1.103-112

Abstract

This study reports the synthesizes of such as copper oxide (CuO) and nickel oxide (NiO) nanoparticles (NPs) by thermal decompositions of Schiff base complexes and their physical characterization. A polydentate Schiff base ligand, (E)-2-(((2-chlorobenzyl)imino)methyl)phenol (CIMP), was synthesized by condensing 2-chlorobenzylamine and 2-hydroxybenzaldehyde. The ligand was identified by melting point, FT-IR, UV-Vis, and (1H and 13C NMR) spectroscopy. Cu(II) and Ni(II) complexes were prepared by reacting CIMP with the corresponding molar ratio in a 1:1 (metal: ligand). The complexes (Com1 and Com2) were characterized by melting point, FT-IR, and UV-Vis spectroscopy. The FT-IR spectra of the (Com1 and Com2) showed that the deprotonated CIMP ligand coordinated to the Ni(II) and Cu(II) metal ions through the azomethine nitrogen, aryl chloride, chlorine, and phenolic oxygen atoms. To determine the crystalline structure of the synthesized products, X-ray powder diffraction (XRD) and scanning electron microscopy (SEM) techniques were employed. The formation of copper oxide and nickel oxide as the new products was confirmed by XRD analysis. SEM imaging revealed the uniform and spherical morphology of the nanoparticles, which exhibited a remarkably narrow size distribution with an average diameter of 20 to 22 nm, highlighting their exceptional precision
Synthesis and Characterization of Co3O4 and ZnO Nanoparticles Based on Schiff Base Complexes as a Precursor to the Photocatalytic Photodegradation of Congo Red Dye Raji, Shahad Qasim; Bader, Ali Taleb
Science and Technology Indonesia Vol. 10 No. 2 (2025): April
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2025.10.2.420-431

Abstract

The synthesis of [Co(HBZAP)(OAC)2]2H2O and [Zn(HBZAP)(OAC)2] H2O complexes was successfully performed through reflux in connection with the Schiff bases synthesized with metal salt acetate hydrate. Identification of the synthesized complexes was performed by Fourier transform infrared FTIR, UV-Vis, magnetic moment,1H, and 13C-NMR spectroscopy and X-Ray diffraction XRD. These studies show the Schiff base ligand as bidentate due to oxygen from the phenolic group and nitrogen from the azomethane group for complexation with Co(II) and Zn(II), resulting in a tetrahedral configuration of the complexes around the metal ions. Conductivity measurements in DMSO demonstrated that none of the complexes would permit the conduction of electricity. Co3O4 and ZnO nanoparticles were synthesized from these Co(II) and Ni(II) complexes. FTIR and UV-Vis spectra, as well as FE-SEM images, were used to identify the synthesized nanostructures. These results show that the Co3O4 and ZnO nanoparticles have cubic and hexagonal systems, respectively. The average crystallite sizes of Co3O4 and ZnO are 36.5 and 31.9 nm, respectively. These nanoparticles show excellent photocatalytic activity when used under UV light to degrade Congo red dye in aqueous media for 120 minutes of 91.4% and 60.6%.
Co-Authors Al-qasii, Nada Ahmed Rasheed Khaleel, Asmaa Mohammed Noori Raji, Shahad Qasim