ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Preparation of TiO₂/graphene nanostructure for antibacterial applications

Muntadher I. Rahmah

AL-Esraa University College, Baghdad, Iraq

E-mail: superhydrophobicsurfaces@mail.ru

Received: 3 October 2022  Accepted: 19 January 2023

Abstract:

Abstract

In this work, a successful method for preparing TiO₂/graphene nanostructures is presented by combining the hydrothermal method with the Nd-YAG laser. The results of XRD confirmed the presence of the anatase phase of TiO₂ and the presence of two peaks that belong to graphene. FESEM results indicate the presence of nanostructures like “nanosheets” with clusters of nanoparticles. In high agreement with the XRD results, EDS results confirmed the presence of energy peaks for all selected elements. The zeta potential results confirm that the sample colloids have a negative electrical charge on their surface, with a zeta potential of around (– 16.7) mV. The anti-bacteria results indicate the ability of the TiO₂/graphene nanostructure to highly inhibit Staphylococcus aureus and Escherichia coli bacteria with inhibition zones of 36 and 29 mm, respectively.

Graphical Abstract

Keywords: TiO2; Graphene; Nd-YAG laser; Anti-bacteria; Hydrothermal method

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-023-02691-w

Chemical Papers 77 (6) 3121–3128 (2023)