Journal
JOURNAL OF MATERIALS SCIENCE
Volume 53, Issue 23, Pages 15927-15938Publisher
SPRINGER
DOI: 10.1007/s10853-018-2720-7
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Funding
- National Natural Science Foundation of China [21722604, 21646001, 21506080]
- Natural Science Foundation of Jiangsu Province [BK20150485, BK20170528]
- China Postdoctoral Science Foundation [2017M611727]
- Jiangsu Planned Projects for Postdoctoral Research Funds [1701104B]
- Student Research Project of Jiangsu University
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The catalyst of WO(3 )highly dispersed on mesoporous ZrO2 was prepared by hydrothermal treatment and calcination. Ionic liquid templates with different cations and various calcination temperatures were taken into account to investigate factors that affect the structure of the catalysts. Wide-angle XRD, Raman, low-angle XRD, N-2 adsorption-desorption, SEM, EDS-mapping and TEM analyses were employed to characterize the composition, morphology and the dispersion of WO3. It was found that [LC16H33N(CH3)(3)](4)SiW12O40 and 700 degrees C were the optimal ionic liquid template and calcination temperature; the obtained catalyst, expressed as 700-C-16-WO3/ZrO2, exhibited the best catalytic activity in oxidation desulfurization. Dibenzothiophene (DBT) in the model oil could be oxidized to DBT sulfone (DBTO2) completely, certified by GC-MS analysis, under optimum conditions. The oxidative desulfurization efficiencies of different substrates catalyze by 700-C-16-WO3/ZrO2, and the cycle performance on the oxidation of DBT were studied.
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