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天然沸石同晶取代制备钛丝光沸石 被引量：3

Post-synthesis of Ti-mordenite using natural zeolites.
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摘要 以优质的天然丝光沸石为原料,采用液固相置换反应,经多步"脱铝-补钛"的方式,制备了含钛的丝光沸石.运用X射线粉末衍射(XRD)、紫外可见光谱(UV-Vis)、X射线光电子能谱(XPS)以及ICP等手段对制备的钛丝光沸石进行了表征,结果表明钛已成为天然丝光沸石的骨架元素.多步脱铝-补钛的方式可有效调控骨架钛的含量和避免骨架外钛物种的生成. This paper describes the successful modification of natural mordenite to Ti-containing mordenite.The modification procedures consist of a multi-step dealumination and multi-step titanation.By means of X-ray diffraction（XRD）,inductively coupled plasma（ICP）,ultraviolet-visible（UV-Vis） diffuse reflectance and X-ray photoelectron spectroscopy（XPS）,a successful incorporation of titanium into the framework of natural mordenite with Si/Ti ration of 79 has been verified.
作者 杨靖 周慧 肖丽萍 郑小明
机构地区 浙江大学化学系
出处 《浙江大学学报（理学版）》 CAS CSCD 北大核心 2010年第5期556-559,共4页 Journal of Zhejiang University（Science Edition）
基金 国家基础科学人才基金(J0830413) 浙江省科技厅优先主题项目(2009C11141) 浙江省自然科学基金资助项目(J20091487)
关键词 天然沸石 钛硅分子筛 脱铝-补钛 同晶取代 natural zeolites modification titanium silicalites dealumination titanation
分类号 O621 [理学—有机化学]
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参考文献15

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浙江大学学报（理学版）
2010年 第5期

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