Graphitic carbon nitride (g-C3N4) was ready from melamine (C3H6N6) by annealing it below an electrical furnace at 550 °C for 3 h. The g-C3N4 answer was ready by dissolving powdered g-C3N4 in an aqueous answer with polyvinyl pyrrolidone (PVP). The liquid–liquid interfacial precipitation (LLIP) methodology was used to organize the g-C3N4–C60 fullerene nanowhisker composites from g-C3N4 answer, C60-saturated toluene, and isopropyl alcohol (IPA). X-ray diffraction, scanning electron microscopy, Raman spectroscopy, and transmission electron microscopy have been used to characterize the g-C3N4–C60 fullerene nanowhisker composites. These have been additional used for the photocatalytic degradation of rhodamine B (RhB) below ultraviolet (at 254 and 365 nm) irradiation. As well as, UV–vis spectroscopy was utilized to verify the photocatalytic degradation exercise of RhB over the g-C3N4–C60 fullerene nanowhisker composites. Below UV irradiation, the kinetics of photocatalytic degradation of RhB utilizing g-C3N4–C60 fullerene nanowhisker composites adopted a pseudo first-order response fee legislation.