Nanosized mesoporous composite PW12-APTES@KIT-6: An efficient heterogeneous catalyst for selective oxidation of sulfides to sulfoxides and sulfones

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  • Razieh Fazaeli1,
  • Hamid Aliyan1,
  • Somaieh Parishani Foroushani1,
  • Zahra Mohagheghian1,
  • Zahra Heidari1,
  1. Department of Chemistry, Shahreza Branch, Islamic Azad University, 86145-311, Iran.

Published in Issue 2024-02-03

How to Cite

Fazaeli, R., Aliyan, H., Parishani Foroushani, S., Mohagheghian, Z., & Heidari, Z. (2024). Nanosized mesoporous composite PW12-APTES@KIT-6: An efficient heterogeneous catalyst for selective oxidation of sulfides to sulfoxides and sulfones. Iranian Journal of Catalysis, 3(3). https://oiccpress.com/ijc/article/view/3764

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Abstract

Surface of mesostructured silica, KIT-6, was modified by grafting 3-aminopropyl-triethoxysilane (APTES) to have the positive charge, and thus, to provide sites for the immobilization of H3PW12O40 (PW12).  This modified-nanosized mesoporous silica (PW12-APTES@ KIT-6) was characterized by FTIR, XRD, BET and TEM. The oxidation of sulfides occurs effectively and selectively with H2O2 as the oxidant. PW12-APTES@KIT-6 was used as the catalyst.  The catalyst can be reused for several times but it will be less active.

Keywords

  • Heterogeneous catalysis,
  • Mesoporous silica KIT-6,
  • Polyoxotungstate
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