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Synthesis, characterization, antibacterial activity and VSM investigation of Fe3O4–NiCr2O4 nano oxide obtained from a new oxalato-bridged complex

Parisa Iranmanesh, Hamideh Saravani, and Alireza Rezvani

University of Sistan and Baluchestan, Zahedan, Iran



Abstract: The preparation of Fe3O4–NiCr2O4 nano-oxide (2) is reported via thermal decomposition of [Fe(phen)2(H2O)2]2[(ox)2Cr(μ-ox)Ni(phen)(μ-ox)Cr(ox)2] (1) [phen = 1,10-phenanthroline; ox = oxalate] precursor complex for the first time. The complex 1 was characterized by FT-IR spectroscopy and elemental analysis. The thermal stability of complex 1 was also investigated. The composition of the nano oxide 2 was confirmed by energy-dispersive X-ray spectroscopy analysis and the cubic structure, was supported by powder X-ray diffraction. In addition, uniform morphology of the nano-oxide was illustrated by field-emission scanning electron microscopy. The elemental mapping was carried out and presented the distribution of Cr, Fe and Ni ions in nano oxide. In vitro antibacterial activity of 2 was investigated by using IZ and bacterium as per the colony count method against two gram-positive and two gram-negative bacteria. All the experiments revealed that the nano oxide had good effect on deactivating of bacteria. Finally, ferromagnetic behavior of 1 and paramagnetic feature of 2 were measured by vibrating sample magnetometer.

Keywords: Oxalato complex ; Thermal decomposition ; Nano particle ; Morphology ; Antibacterial activity 

Full paper is available at

DOI: 10.1007/s11696-017-0301-x


Chemical Papers 72 (2) 487–495 (2018)

Tuesday, April 23, 2024

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