A. Jalaukan - ۱ Department of physics, College of Education for pure sciences, University of Kerbala Karbala, Iraq.
S. Aldin M. Aldowaib - Department of sciences, Collage of basic education Al- Mustansiriyah University, Baghdad, Iraq.
A. Salah Hammed - ۳ Department of Physics, College of Science, University of Kerbala, Karbala, Iraq.
B. Ghanbari Shohany - Borhan Nano Scale Company, Mashhad, Iran
R. Etefagh - Borhan Nano Scale Company, Mashhad, Iran
A. Khorsand Zak - Department of Physics, Nanotechnology Laboratory, Esfarayen University of Technology, Iran

In the research, Titanium dioxide/Graphene Oxide thin films at different concentration of graphene oxide (۰.۰, ۰.۰۱۵, ۰.۰۳۰, ۰.۰۴۵ and ۴.۵ g/ml) were prepared by spin coating method. Characterization of the samples was performed using X-ray diffraction and Field Emission Scannig Eelectron Microscope and Atomic Force Microscope. X-ray diffraction results show that by adding the graphene oxide, the peak associated with (۰۰۱) reflection is observed at the angle of ۱۰.۵°. The analysis of Eenergy Dispersive X-ray also confirms the formation of graphene oxide sheets. Considering the excellent photo catalytic and antibacterial properties of titanium dioxide, the effect of adding the different concentration of graphene oxide on these properties has been investigated. The results show that the presence of graphene oxide increases the inhibition of Escherichia coli bacterial growth.

TiO۲/GO, spin coating method, contact angle, antibacterial properties, photo catalytic properties