Synthesis of hierarchical TS-1 with convenient separation and the application for the oxidative desulfurization of bulky and small reactants

• Published in: Fuel (Guildford) 2014-08, Vol.130, p.70-75
• Main Authors: Lv, Qiang, Li, Gang, Sun, Hongying
• Format: Article
• Language: English
• Subjects: Applied sciences; Energy; Energy. Thermal use of fuels; Exact sciences and technology; Fuels; Hierarchical TS-1; Hydrothermal synthesis; Oxidative desulfurization
• ISSN: 0016-2361; 1873-7153
• DOI: 10.1016/j.fuel.2014.04.042

A hierarchical TS-1 has been prepared by using C16TMS as partial silica source and mesopore porogen simultaneously. [Display omitted] •Nano-scaled HTS-1 can be spontaneously separated from the mother solution.•HTS-1 possesses both micro and mesoporous structures.•HTS-1 exhibits excellent desulfurization for bulky and small sulfur reactants. A hierarchical TS-1 (HTS-1) with 140–200nm particle size was hydrothermally synthesized by employing an organosilane that serves as a silica source and mesoporous template simultaneously. An advantage of this kind of synthesized nano-scaled material is the convenient separation from the synthetic mother solution without using conventional centrifugation or filtration because of the existence of Alkyl groups. HTS-1 possesses the characteristics of both micro- and mesoporous materials and is applied as a catalyst in the oxidation of thiophene (Th), benzothiophene (BT), dibenzothiophene (DBT) and 4,6-dimethyldibenzothiophene (4,6-DMDBT). Compared with conventional TS-1 (CTS-1) and mesoporous material Ti-MCM-41, HTS-1 exhibits excellent catalytic performance in the oxidation of bulky and small reactants in the presence of H2O2.