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以天然矿物微斜长石为硅、铝源,以十六烷基三甲基溴化铵(CTAB)为模板剂,在碱性条件下水热合成了含有微孔的介孔分子筛.采用质量吸水率、X射线衍射(XRD)、N2吸附、傅立叶红外光谱(FT-IR)等测试手段对样品的结构性能进行了表征.样品的水热稳定性评价方法是将样品在沸水中分别水热处理48 h、96 h和144 h后,利用XRD考察了水热处理后的样品的孔结构是否依然存在.本实验所合成的样品的平均介孔孔径为2.82 nm,BET比表面积为847.13 m2/g.水热稳定性研究发现,样品具有很好的水热稳定性.随着水热处理时间由48 h延长至144 h,样品的孔道结构受到部分影响,但孔结构依然存在.

参考文献

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