Title of article
Boehmite silica sulfuric acid: as a new acidic material and reusable heterogeneous nanocatalyst for the various organic oxidation reactions
Author/Authors
Ghorbani-Choghamarani, Arash Department of Chemistry - Faculty of Science - Ilam University, Ilam, Iran , Hajjami, Maryam Department of Chemistry - Faculty of Science - Ilam University, Ilam, Iran , Tahmasbi, Bahman Department of Chemistry - Faculty of Science - Ilam University, Ilam, Iran , Noor, Nourolah Department of Chemistry - Faculty of Science - Ilam University, Ilam, Iran
Pages
10
From page
2193
To page
2202
Abstract
In this research, project boehmite silica sulfuric acid (Boehmite-SSA) has been applied as new acidic porous catalyst for the selective oxidation of sulfides to sulfoxides and oxidative coupling of thiols to corresponding disulfides using hydrogen peroxide as oxidizing agent. The products have been obtained in short reaction times and high yields. Boehmite nanoparticles was prepared, coated by silica and then reacted with chlorosulfuric acid to obtain Boehmite-SSA. This catalyst was characterized by FT-IR, TGA/DTA, XRD, TEM, SEM, EDS and BET techniques. BET curve of boehmite nanoparticles identified as a typical type IV isotherm (definition by IUPAC), which are the characteristics of mesoporous material. Nitrogen adsorption/desorption measurement indicated that boehmite nanoparticles had BET surface area of about 122.8 m2/g. The catalyst was easily separated and reused for the several runs without significant loss of its catalytic efficiency.
Keywords
Boehmite nanoparticles , Sulfoxide , Disulfide , Silica sulfuric acid , Oxidation
Journal title
Astroparticle Physics
Serial Year
2016
Record number
2406693
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