期刊
CATALYSIS COMMUNICATIONS
卷 127, 期 -, 页码 10-14出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2019.04.013
关键词
Catalytic oxidation; Sulfide; Nb2O5/AC; Aqueous phase; H2O2
资金
- GDAS' Project of Science and Technology Development [2019GDASYL-0302016, 2017GDASCX-0852, 2017GDASCX-0705, 2017GDASCX-0116]
Selective oxidation of sulfides into sulfoxides or sulfones is an important transformation in organic synthesis. Activated carbon supported Nb-based catalysts were prepared by the impregnation method and then characterized by the XRD, TEM and XPS. The characterization results indicate Nb species is amorphous Nb2O5. The catalysts were applied for the catalytic oxidation of sulfides in aqueous phase with H2O2 as the oxidant. Sulfides could be converted into the corresponding sulfoxides or sulfones with high conversion and selectivity at room temperature. The recycling experiments showed the Nb2O5/AC catalysts exhibited good reusability. They could be recycled for 10 times without obvious loss of activity and selectivity.
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