Facile Synthesis and Catalytic Performance of Fe-Containing Silica-Pillared Clay Derivatives with Ordered Interlayer Mesoporous Structure

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• 作者：Shengjun Yang ; Guozheng Liang ; Aijuan Gu ; Huihui Mao
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2012
• 出版时间：December 5, 2012
• 年：2012
• 卷：51
• 期：48
• 页码：15593-15600
• 全文大小：523K
• 年卷期：v.51,no.48(December 5, 2012)
• ISSN：1520-5045

文摘

A facile method was developed to synthesize a series of Fe-incorporated silica-pillared clays (denoted as Fe-SPCs) with various contents of Fe₂O₃. The synthesis was conducted under alkaline conditions using ethanol as the solvent containing the Fe source and dodecyl dimethyl benzyl ammonium chloride as the structure-directing agent. Characterization results showed that the Fe₂O₃ content of the Fe-SPCs was as large as 27.03 wt % and that all of the Fe-SPCs had a layered structure similar to that of the original SPC except that some silicone atoms in the tetrahedral coordination of the interlayered silica framework were replaced by Fe atoms. The Fe-SPCs showed excellent catalytic performance and reusability in the oxidative desulfurizations of both coking benzene and dibenzothiophene. A catalytical mechanism is proposed.