Continuous Flow Desulfurization of a Model Fuel Catalysed by Titanium Functionalized UiO-66

摘要

The porous material UiO-66 is one of the most stable MOFs,retaining its properties under a relatively wide range of chemical and physical conditions,making it attractive for postsynthetic modifications and catalytic applications.A Titanium functionalization of UiO-66 has been carried out and the synthesized material has been efficiently used as catalyst in the continuous oxidative desulfurization of a model fuel with aqueous H2O2.Using dibenzothiophene as sulfur source,only a partial desulfurization has been achieved,nevertheless the functionalized MOF showed better performances compared to the standard UiO-66.The titanium containing MOF allowed to completely removing thioanisole from the oil phase within only eight minutes.The pore sizes of UiO-66 are playing an important role in allowing a fast oxidation of the thioanisole compared to dibenzothiophene.