The removal or extreme reduction of sulfur compounds in diesel fuels is a crucial stage, during their production, in terms of protecting the environment from harmful emissions. Additionally, the use of a cost-effective process, for such a purpose, is strongly favorable from economic perspectives. Thus, this research paper aims to produce low-sulfur diesel fuel through a photocatalytic route under the effect of visible light. Hybrid structures made of combining organic and inorganic compounds are presented as novel photocatalysts during this study. Such combination was meant to enhance the overall photocatalytic performances of these structures as well as to increase their capability toward the adsorption of sulfur compounds. It had been noticed that the usage of aliphatic chains, attached to function groups, and increment of electron donor atoms, in the organic part of photocatalyst, could increase the desulfurization percentage. Moreover, the introduction of this structure in its polymerized state had significantly enhanced the desulfurization percentage. Particularly, a diesel fuel of a reduced sulfur content exactly: 2500 ppm, which is corresponding to 20 Wt. % of the original feedstock: 12500 ppm, could be obtained. This content of sulfur compounds was further reduced to 440 ppm referring to a total sulfur removal of 96.5 % via applying three successive photocatalytic stages.