| 1,8-辛二胺作为结构导向剂合成ZSM-11分子筛 |
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| 引用本文： | 徐霆,杜立方,岑诗雨,赵茜怡.1,8-辛二胺作为结构导向剂合成ZSM-11分子筛[J].河南师范大学学报(自然科学版),2019,47(3):67-73. |
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| 作者姓名： | 徐霆 杜立方 岑诗雨 赵茜怡 |
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| 作者单位： | 河南师范大学化学化工学院,河南新乡453007;河南省硼化学与先进能源材料重点实验室,河南新乡453007;河南师范大学化学化工学院,河南新乡,453007 |
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| 摘 要： | ZSM-11是重要的固体酸催化剂,在石油化工领域应用广泛,因此,ZSM-11的高效合成备受关注.采用1,8-辛二胺(DAOT)作为结构导向剂,用水热法在较宽范围内成功地合成了不含ZSM-5杂晶的ZSM-11分子筛.研究了水平转速、晶化温度、晶化时间以及硅铝比对ZSM-11分子筛制备的影响.在不同的合成条件下,得到了不同的晶体尺寸、形貌以及不同结晶度的ZSM-11分子筛.样品晶粒通过X射线衍射(XRD)和扫描电子显微镜(FESEM)进行表征.研究拓展了ZSM-11的高效合成方法,得到了ZSM-11分子筛的最佳合成条件为水平转速50r/min,160℃晶化48h.
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| 关 键 词： | ZSM-11分子筛 1 8-辛二胺 动态晶化 结晶度 合成条件 |
Synthesis of ZSM-11 zeolite using 1,8-diaminooctane as the structure directing agent |
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| Institution: | ,School of Chemistry and Chemical Engineering,Henan Normal University,Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials,Henan Normal University |
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| Abstract: | ZSM-11 is an important solid acid catalyst and is widely used in petrochemical industry.Therefore,the high efficient synthesis of ZSM-11 is highly concerned.In this paper,ZSM-11 zeolites without ZSM-5 hybrid was successfully synthesized in a wide range by using 1,8-diaminooctane as Structure-directing agent(SDA).The effect of speed of horizontal rotation,crystallization temperature,crystallization time and Si/Al ratio on the preparation of the ZSM-11 zeolites were studied.ZSM-11 zeolites with different crystal sizes,morphologies and crystallinities were produced under different synthesis conditions.The crystallinity and morphology of the resulted ZSM-11 zeolites were characterized by X-ray diffraction(XRD)and field emission scanning electron microscopy(FESEM).This study extends efficient synthesis method of the ZSM-11 and gets the best synthetic conditions of ZSM-11 zeolites:horizontal speed of 50 r/min,160 ℃ crystallization 48 h. |
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| Keywords: | ZSM-11 zeolite 1 8-diaminooctane rotating crystallization crystallization synthesis conditions |
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