Abstract
SBA-15 functionalized with both zinc ions and ionic liquids was simply synthesized by sol–gel method. The characterization results of Fourier transform infrared spectroscopy, X-ray diffraction, elemental analysis, scanning electron microscopy, energy dispersive spectrometer, atomic absorption spectroscopy, and Brunauer–Emmett–Teller indicated that Zn2+ and imidazolium ionic liquid had been successfully immobilized on SBA-15, imidazolium as cation and [ZnCl3]- /[Zn2Cl5]- as complex anion. The immobilized Zn2+ and ionic liquid did not destroy the typical two-dimensional hexagonal mesoscopic structure of SBA-15 in this experimental research scope. But with the mass of Zn2+ and IL increasing, the mesoscopic order reduced, the pore diameter, pore volume and specific surface area decreased, whereas the wall thickness increased. The adsorption desulfurization experiments showed that the loaded Zn2+ and imidazolium ionic liquid improved the S-removal efficiency of SBA-15 especially for high aromatic sulfur compound.
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Acknowledgements
This work was financially supported by the National Natural Science Foundation of China (NSFC, No. 51103179) and the Qingdao science and technology plan projects (14-2-4-7-jch) and the Fundamental Research Funds for the Central Universities (15CX05027 A, 16CX05013 A).
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Zhang, Z., Wang, F., Nie, H. et al. A simple strategy for the synthesis of Zn-IL-SBA-15 by sol–gel and the application in desulfurization. J Sol-Gel Sci Technol 82, 827–833 (2017). https://doi.org/10.1007/s10971-017-4351-x
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DOI: https://doi.org/10.1007/s10971-017-4351-x