en گروه سطح پوشش و خوردگی Surface Coatings and Corrosion Research Paper Research Paper In the research, Titanium dioxide/Graphene Oxide thin films at different concentration of graphene oxide (0.0, 0.015, 0.030, 0.045 and 4.5 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 (001) reflection is observed at the angle of 10.5&deg;. 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.<br> &nbsp; TiO2/GO,spin coating method,contact angle,antibacterial properties,photo catalytic properties 53 62 http://ijmse.iust.ac.ir/browse.php?a_code=A-10-2178-1&slc_lang=en&sid=1 A. Jalaukan ali.jalaukhan@uokerbala.edu.iq 180031947532846009092 180031947532846009092 No 1 Department of physics, College of Education for pure sciences, University of Kerbala Karbala, Iraq. S. Aldin M. Aldowaib Salahaldin@gmail.com 180031947532846009093 180031947532846009093 No Department of sciences, Collage of basic education Al- Mustansiriyah University, Baghdad, Iraq. A. Salah Hammed ammar.physics@yahoo.com 180031947532846009094 180031947532846009094 Yes 3 Department of Physics, College of Science, University of Kerbala, Karbala, Iraq. B. Ghanbari Shohany Boshrasds@gmail.com 180031947532846009095 180031947532846009095 No Borhan Nano Scale Company, Mashhad, Iran R. Etefagh Reihanehfd@gmail.com 180031947532846009096 180031947532846009096 No Borhan Nano Scale Company, Mashhad, Iran A. Khorsand Zak Khorsandali@yahoo.com 180031947532846009097 180031947532846009097 No Department of Physics, Nanotechnology Laboratory, Esfarayen University of Technology, Iran