In the present study, magnetic graphene oxide was used for removal of sulfur compounds from real samples. The removal and detection of sulfur compounds have gained significant importance because of the toxicity of these materials and the corresponding risks associated with exposure to a number of occupational settings. For example sulfide acts as a cellular poison through the deactivation of aerobic respiration with death typically occurring through asphyxiation [1]. The low odor threshold of these compounds implies the requirement of highly effective technologies for reducing the impact on the quality of life of the population [2]. Adsorptive desulfurization is an efficient and economical way for removing sulfur compounds due to its low-energy consumption, the ambient operation temperature and atmospheric pressure without using pressurized hydrogen gas and the availability of regeneration of the spent adsorbent and broad availability of adsorbents. Recently, development of new adsorbents with high capacity, selectivity and renewability is the great challenge to an efficient adsorption desulfurization process [3]. Graphene oxide has the potential in the application to remove of pollutant in wastewater, but it suffers from separation inconvenience. In this study, maghemite nanoparticles and magnetic graphene oxide were prepared easily by co-precipitation method and characterized by FT-IR, XRD and SEM techniques. The size of the produced nanoparticles was around 8 nm. Optimal experimental conditions including pH, adsorbent dosage and contact time have been established. The experimental data were analyzed by the Langmuir adsorption model. The maximum predicted adsorption capacities for sulfite, sulfide and thiosulfate were obtained as 336, 369, and 321 mgg 1, respectively. Synthesized adsorbent showed the good adsorption capacities of sulfur compounds. This nanocomposite was suitable for the removal of these compounds in a wastewater.
