Nanosized mesoporous composite PW12-APTES@KIT-6: An efficient heterogeneous catalyst for selective oxidation of sulfides to sulfoxides and sulfones
نویسندگان
چکیده مقاله:
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.
منابع مشابه
nanosized mesoporous composite pw12-aptes@kit-6: an efficient heterogeneous catalyst for selective oxidation of sulfides to sulfoxides and sulfones
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...
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عنوان ژورنال
دوره 3 شماره 3
صفحات 129- 137
تاریخ انتشار 2013-09-01
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