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Immobilized tungstate on magnetic poly(2-ammonium ethyl acrylamide): A high loaded heterogeneous catalyst for selective oxidation of sulfides using H2O2

Zohreh, N ; Sharif University of Technology | 2016

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  1. Type of Document: Article
  2. DOI: 10.1016/j.jiec.2016.08.011
  3. Publisher: Korean Society of Industrial Engineering Chemistry , 2016
  4. Abstract:
  5. A heterogeneous tungstate-based catalyst has been prepared for selective oxidation of sulfides to sulfoxides in the presence of 30% H2O2. The catalyst was prepared via immobilization of high amounts of WO4 2− onto the cross-linked poly(ammonium ethyl acrylamide) coated magnetic nanoparticles (MNP). FT-IR, TEM, TGA, VSM, XRD, EDX, and CHN analysis were used for characterization of catalyst. Variety of sulfides successfully converted to the related sulfoxides using 1 mol% of catalyst at room temperature in high yields. The catalyst was easily recovered and reused up to 6 times without loss of activity
  6. Keywords:
  7. High loaded catalyst ; Magnetic catalyst ; Sulfides oxidation ; Amides ; Magnetism ; Nanomagnetics ; Nanoparticles ; Oxidation ; Sulfur compounds ; Tungsten compounds ; Acrylamides ; Characterization of catalysts ; CHN analysis ; Heterogeneous catalyst ; Magnetic catalysts ; Magnetic nanoparticles ; Selective oxidation ; Sulfides oxidations ; Catalysts
  8. Source: Journal of Industrial and Engineering Chemistry ; Volume 44 , 2016 , Pages 73-81 ; 1226086X (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S1226086X16302751