Application of a Novel Nanocomposite for Desulfurization of a Typical Organo Sulfur Compound

摘要

In this research, zeolite-TiO_2 nanocomposite was prepared for degradation of dibenzothiophene as a typical aromatic organosulfur compound of transportation fuels. The synthesized TiO_2 was immobilized on the surface of clinoptilolite by Solid State Dispersion (SSD) method. The nanocomposite was then characterized by XRD, FTIR, TEM and SEM techniques. Photodegradation of dibenzothiophene in n-hexane solution by the prepared photocatalyst was then studied under different experimental conditions. The reaction products were identified by GC and GC-MS techniques. The removal of degradation products from the solution was examined by β- zeolite. The results showed that under optimized conditions, the photocatalyst was able to degrade %88 of dibenzothiophene and that the degradation products were adsorbed by β-zeolite so that the remaining solution was deeply desulfurized. It was also concluded that the kinetics of the reaction was first order.