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低模板剂快速合成介孔分子筛MCM-48

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Indexed by:期刊论文

Date of Publication:2011-10-20

Journal:现代化工

Included Journals:PKU、ISTIC

Volume:31

Issue:z2

Page Number:75-79

ISSN No.:0253-4320

Key Words:MCM-48介孔分子筛;低模板剂;晶化时间;CTAB、NaF的加人次序

Abstract:采用水热合成法,通过优化合成条件,高温短时间内成功合成了热及水热稳定性较高、有序性较强的介孔分子筛MCM-48,并考察了模板剂十六烷基三甲基溴化铵(CTAB)用量、温度、晶化时间及CTAB和NaF的加入次序对合成MCM-48的影响.通过XRD和SEM对产物进行表征,结果显示:在n(CTAB)/n(Si) =0.1、n(F-)/n(Si) =0.1,423 K下,晶化12 h、成了高质量的介孔分子筛MCM-48.

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