Journal
GREEN CHEMISTRY
Volume 19, Issue 5, Pages 1371-1377Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6gc03573f
Keywords
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Funding
- National Undergraduate Innovation and Entrepreneurship Training Project [201410057043]
- Tianjin College Science & Technology Developing Fund [20140502]
- Tianjin Research Program of Application Foundation and Advanced Technology [14JCZDJC40600]
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H-Titanate nanotubes ( H-TiNTs) were prepared and used as catalysts for the oxidation of dibenzothiophene (DBT), which is typically found in diesel. The catalyst was synthesized through a hydrothermal method and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N-2 adsorption-desorption. The effects of typical diesel components on sulfur removal from the model oil were also evaluated by adding various amounts of 1-octylene, xylene or cyclohexane to the oxidation system. The H-TiNTs exhibited superior catalytic selectivity in oxidative desulfurization (ODS) without an obvious decrease in activity in the presence of the various diesel compounds. Both UV and Raman spectroscopy analyses revealed that the Ti-hydroperoxide generated from H-TiNTs in the presence of hydrogen peroxide played a crucial role in the selective oxidation process. The oxidation mechanism was also explored.
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