Aerobic Oxidative Desulfurization by Supported Polyoxometalate Ionic Liquid Hybrid Materials via Facile Ball Milling

With the increasingly strict limitations on emission standards of vehicles, deep desulfurization in fuel is indispensable for social development worldwide. In this study, a series of hybrid materials based on SiO -supported polyoxometalate ionic liquid were successfully prepared via a facile ball mi...

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Published inMolecules (Basel, Switzerland) Vol. 29; no. 7; p. 1548
Main Authors Wang, Qian, Huang, Tianqi, Tong, Shuang, Wang, Chao, Li, Hongping, Zhang, Ming
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 01.04.2024
Subjects
Acid deposition
aerobic oxidation desulfurization
ball milling
Catalysts
Control equipment industry
Energy consumption
Investigations
ionic liquid
Methylene blue
polyoxometalate
Production costs
Smog
solvent free
Sulfur compounds
Sulfur content
Temperature
Vibration
United States
China
ionic liquid
solvent free
aerobic oxidation desulfurization
ball milling
polyoxometalate
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Summary:With the increasingly strict limitations on emission standards of vehicles, deep desulfurization in fuel is indispensable for social development worldwide. In this study, a series of hybrid materials based on SiO -supported polyoxometalate ionic liquid were successfully prepared via a facile ball milling method and employed as catalysts in the aerobic oxidative desulfurization process. The composition and structure of prepared samples were studied by various techniques, including FT-IR, UV-vis DRS, wide-angle XRD, BET, XPS, and SEM images. The experimental results indicated that the synthesized polyoxometalate ionic liquids were successfully loaded on SiO with a highly uniform dispersion. The prepared catalyst (C PMoV/10SiO ) exhibited good desulfurization activity on different sulfur compounds. Moreover, the oxidation product and active species in the ODS process were respectively investigated via GC-MS and ESR analysis, indicating that the catalyst can activate oxygen to superoxide radicals during the reaction to convert DBT to its corresponding sulfone in the fuel.
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ISSN:1420-3049
1420-3049
DOI:10.3390/molecules29071548