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Synthesis of Co(II) and Cr(III) salicylidenic Schiff base complexes derived from thiourea as precursors for nano-sized Co3O4and Cr2O3and their catalytic, antibacterial properties
- Source :
- Journal of Nanostructure in Chemistry; June 2017, Vol. 7 Issue: 2 p179-190, 12p
- Publication Year :
- 2017
-
Abstract
- This study focuses on the synthesis of Co(II) and Cr(III) Schiff base complexes obtained from thiourea. The complexes were synthesized by template method and characterized by elemental analysis (CHNS), FT-IR, UV–vis spectroscopy, conductivity measurement and magnetic moment. The spectroscopic studies suggested the octahedral and square-pyramidal structures for Co(II) and Cr(III) complexes, respectively. Then the complexes were used as precursors for preparation of Co3O4and Cr2O3nanoparticles via solid-state thermal decomposition without using a catalyst, toxic solvent, template or surfactant and complicated equipment, which makes it efficient, one-step, simple and environment-friendly. The chemical structure of the metal oxides is studied by FT-IR, XRD and SEM. To investigate the applications of the synthesized complexes, in the next step, the complexes were screened for antibacterial activity against clinically important bacteria such as Escherichia coli, Staphylococcus aureus, and Bacillus subtilis. The Cr(III) and Co(II) complexes showed good biological activity against all the tested bacteria. Also, the catalytic activities of the complexes were studied in toluene using non-toxic hydrogen peroxide as the oxidant. The results showed that Co(II) complex has catalytic activity for oxidation of toluene, but Cr(III) complex did not show any catalytic activity.
Details
- Language :
- English
- ISSN :
- 20089244 and 21938865
- Volume :
- 7
- Issue :
- 2
- Database :
- Supplemental Index
- Journal :
- Journal of Nanostructure in Chemistry
- Publication Type :
- Periodical
- Accession number :
- ejs41288191
- Full Text :
- https://doi.org/10.1007/s40097-017-0221-x