New heterogeneous catalysts for mild oxidation of S-containing organic compounds

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• 作者：Vasile Hulea ; Alina-Livia Maciuca ; Ana-Mihaela Cojocariu ; Cristina-Elena Ciocan ; Emil Dumitriu
• 关键词：Ti– ; MCM-48 ; Tungsten ; Molybdenum ; Layered double hydroxide ; Hydrogen peroxide ; Oxidative desulfurization
• 刊名：Comptes Rendus Chimie
• 出版年：2009
• 出版时间：June-July 2009
• 年：2009
• 卷：12
• 期：6-7
• 页码：723-730
• 全文大小：467 K

文摘

Titanosilicate (1.5 wt. % Ti) with very well-ordered MCM-48 mesostructure was synthesized using fumed silica and titanium isopropoxide as silicon and titanium sources, respectively. It was successfully used as a new catalyst for the mild oxidation of S-containing organic compounds with H₂O₂. Recent results obtained by our group in the sulfoxidation reaction using W-, V- and Mo-containing layered double hydroxides as catalysts are also reviewed in this paper. The catalytic materials were characterized by appropriate techniques such as X-ray diffraction, N₂ adsorption, thermal gravimetric analysis, diffuse reflectance ultraviolet spectroscopy in order to evaluate their textural properties and the nature of the metal species.