Chemical synthesis and characterization of zinc, iron and carbon-based nanoparticles and their nanocomposites

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Comfort M. Ngwu
Stevens A. Odoemelam
Jude C. Nnaji


The wet chemical approach (an aspect of the bottom-up method) was used to synthesize  zinc oxide, magnetite and graphene oxide, graphene oxide/magnetite and chitosan/magnetite nanoparticles and their nanocomposites. The synthesized particles were characterized by FESEM/EDX, FT-IR and XRD techniques. Zinc oxide was obtained with a crystallite size of 9.0 nm. The synthesized magnetite particles had a crystallite particle size of 6.4 nm. Crystallite sizes obtained for GO, GO-magnetite and chitosan-magnetite were 7.9, 7.1 and 11.2 nm, respectively. The synthesized composite did not display any  phase change in the magnetite


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Author Biographies

Comfort M. Ngwu, Michael Okpara University of Agriculture, Umudike, P.M.B 7267 Umuahia, Abia State, Nigeria

Department of Chemistry

Stevens A. Odoemelam, University of Agriculture, Umudike, P.M.B 7267 Umuahia, Abia State, Nigeria

Department of Chemistry

Jude C. Nnaji , Michael Okpara University of Agriculture, Umudike, P.M.B 7267 Umuahia, Abia State, Nigeria

Department of Chemistry


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