Carbon-based materials have been widely utilized for the removal of aquatic pollutants due to their adsorption capabilities toward various aquatic organic substances. In this study, carbon nanospheres with nano-sized dimensions and high surface area were synthesized and employed for the removal of a commonly used dye, methylene blue. The synthesized carbon nanospheres had diameters ranging from approximately 100 to 200 nm, demonstrating a maximum adsorption capacity of 82.603 mg/g for aqueous methylene blue. Moreover, it was observed that equilibrium adsorption for aqueous methylene blue was achieved after approximately 120 minutes.