Oxidation of Sulfides with H₂O₂ Catalyzed by Impregnated Graphene Oxide with Co–Cu–Zn Doped Fe₃O₄/Co₃O₄–MoO₃ Nanocomposite in Aceton

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• 作者：Mohammadreza Khoshroo…
• 关键词：Sulfide oxidation ; Hydrogen peroxide ; Graphene oxide ; Magnetite ; Cobalt ; Molybdenum ; Sulfur mustard
• 刊名：Journal of Inorganic and Organometallic Polymers and Materials
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：27
• 期：1
• 页码：165-175
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Inorganic Chemistry; Organic Chemistry; Polymer Sciences;
• 出版者：Springer US
• ISSN：1574-1451
• 卷排序：27

文摘

A new nanocomposite was synthesized by immobilization of Co₃O₄–MoO₃ on graphene oxide decorated with Co–Cu–Zn doped Fe₃O₄ (GO/[Fe₃O₄]/Co₃O₄–MoO₃) and characterized by SEM, XRD, FTIR and VSM. The nanocomposite is an efficient catalyst for the oxidation of sulfides with electron donating and electron withdrawing substituents (diethyl sulfide, methyl phenyl sulfide, ethyl methyl sulfide, 4-chlorophenyl sulfide) and simulants of sulfur mustard (2-chloroethyl ethyl sulfide and 2-chloroethyl phenyl sulfide) with 30 % aqueous hydrogen peroxide to the corresponding sulfoxide and sulfone in acetonitrile solution. The effect of the reaction temperature, reaction time and solvent on the catalyst activity were surveyed in detail. Increasing the reaction temperature, increased the selectivity towards sulfone. In addition, the synthesized nanocomposite exhibited good magnetic response. It can be recovered from the reaction medium by magnetic decantation and reused at least four times, maintaining good catalytic activity.