A photooxidative system for deep desulfurization of model diesel fuel was explored. Nanoparticles of anatase titania (TiO2) were synthesized via sol-gel hydrothermal method. The TiO2 was further modified with bimetallic Cu-Fe using wet-impregnation method followed by calcination process in order to extend the activity region of the photocatalyst to visible-light. A series of bimetallic 2.2 wt Cu-Fe/TiO2 photocatalysts with different Cu:Fe mass compositions were characterized for their physical, chemical and optical properties using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM), diffuse reflectance UV-visible spectroscopy (DR-UV-Vis), Fourier Transform Infrared Spectroscopy (FTIR) and Brunauer�Emmett�Teller (BET) surface area analysis. The performance of the photocatalysts was evaluated for photooxidation of dibenzothiophene (DBT) as the sulfur species from model oil in the presence of hydrogen peroxide, H2O2 under 500 W visible light illumination. The highest sulfur conversion of 82.36 was observed for photocatalyst with 10:1 Cu:Fe mass composition. © 2016, Malaysian Society of Analytical Sciences. All rights reserved.