Three-dimensionally Ordered Macroporous Phosphotungstic Acid/SiO2 for Efficient Catalytic Oxidative Desulfurization

Yue Du; Peng Yang; Jiaheng Lei; Shiyu Zhou; Junsheng Li; Xiaodi Du

doi:10.1007/s11595-018-1903-z

Journal of Wuhan University of Technology Materials Science Edition ›› 2018, Vol. 33 ›› Issue (4) : 849 -854. DOI: 10.1007/s11595-018-1903-z

Advanced Materials

Three-dimensionally Ordered Macroporous Phosphotungstic Acid/SiO₂ for Efficient Catalytic Oxidative Desulfurization

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Abstract

Three-dimensionally ordered (3DOM) macroporous phosphotungstic acid/SiO₂ (HPW/SiO₂) materials were prepared by using colloidal crystal as templates and applied for oxidative desulfurization (ODS) of the model fuel oil. The obtained HPW/SiO₂ materials were characterized through scanning electron microscopy, powder X-ray diffraction, N₂ sorption, and Fourier transform infrared spectroscopy. The results indicated that 3DOM HPW/SiO₂ possessed hierarchical pore architectures which contained ordered macropores and disordered mesopores, with the Keggin type HPW embedded in the framework of pore structure. The removal rate of dibenzothiophene (DBT) could reach 100% under the optimum conditions, moreover. The performance was only slightly decreased for the regenerated catalyst after 7 cycles.

Keywords

three-dimensionally ordered macroporous SiO₂ / phosphotungstic acid / oxidative desulfurization

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Yue Du, Peng Yang, Jiaheng Lei, Shiyu Zhou, Junsheng Li, Xiaodi Du. Three-dimensionally Ordered Macroporous Phosphotungstic Acid/SiO₂ for Efficient Catalytic Oxidative Desulfurization. Journal of Wuhan University of Technology Materials Science Edition, 2018, 33(4): 849-854 DOI:10.1007/s11595-018-1903-z