Support ionic liquid-heteropolyacid hybrid on mesoporous carbon aerogel with a high surface area for highly efficient desulfurization under mild conditions

Abstract

Abstract In this work, a series of organic-inorganic hybrids based on N-alkyl-4-vinylpyridinium bromide ([CnVP]Br) with different carbon chain lengths and Dawson type heteropolyacid (HMoV) were designed and synthesized. And then the hybrids were loaded on mesoporous carbon aerogel (CA) with a high surface area of 1448.26 m2/g to form supported catalyst ([CnVP]MoV/CA), which used for extraction-oxidation desulfurization (EODS). Some techniques such as FT-IR, XRD, SEM, EDX, TEM, BET and XPS were used for characterization of the prepared materials. The test results show that the [C6VP]MoV/CA possesses the highest efficiency of 99.63% under the optimum conditions. Moreover, the catalysts can be efficiently reused with an efficiency of 85.39% after repeated use for 10 times, which confirms the industrial potential of the prepared [C6VP]MoV/CA.