Title: Synthesis of zinc oxide/graphene oxide nanocomposite material for antibacterial application

Authors: Le Thanh Trinh; Le Anh Bao Quynh; Nguyen Huu Hieu

Addresses: Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Ward 14, District 10, Ho Chi Minh City, Vietnam ' Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Ward 14, District 10, Ho Chi Minh City, Vietnam ' Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Ward 14, District 10, Ho Chi Minh City, Vietnam

Abstract: In this study, graphene oxide (GO) was prepared by a modified Hummers' method and ZnO/GO was synthesised by coprecipitation. The structural and morphological properties of ZnO/GO nanocomposite were characterised by using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) method, and Raman spectroscopy. The characterisation results show that ZnO nanoparticles with a mean size of 14-26 nm were synthesised and randomly decorated on the surfaces and edges of GO sheets. In addition, the antimicrobial activities of GO and ZnO/GO were tested against bacteria - Escherichia coli (E. coli). The test results reveal that the antibacterial activity at low loading of the ZnO/GO nanocomposite was higher than that of GO on E. coli.

Keywords: zinc oxide; graphene oxide; nanocomposite; antibacterial; E. coli.

DOI: 10.1504/IJNT.2018.089542

International Journal of Nanotechnology, 2018 Vol.15 No.1/2/3, pp.108 - 117

Published online: 12 Jan 2018 *

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