| 新型炭支撑体上无模板剂制备高硅ZSM-5沸石膜 |
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| 引用本文： | 邹本雪,司波,张雄福. 新型炭支撑体上无模板剂制备高硅ZSM-5沸石膜[J]. 辽东学院学报(自然科学版), 2007, 14(3): 161-165 |
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| 作者姓名： | 邹本雪 司波 张雄福 |
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| 作者单位： | 辽东学院,材料科学与化学工学院,辽宁,丹东,118001;大连理工大学,化工学院,辽宁,大连,116000;辽东学院,材料科学与化学工学院,辽宁,丹东,118001;大连理工大学,化工学院,辽宁,大连,116000 |
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| 摘 要： | 在炭支撑体上预先涂敷silicalite-1晶种,经二次水热合成法成功地制备了无模板剂的高硅ZSM-5沸石复合膜,经XRD、SEM和渗透性能测试,合成的炭基-沸石复合膜连续、致密,显示出一定的分子选择性能。实验中对合成液中钠硅比,水硅比和硅铝比等因素对沸石复合膜性能的影响进行了初步探讨。结果表明,尽管晶种的存在削弱了Na+的结构导向作用,但是Na+和Al3+的作用不能忽视。炭支撑体上晶种的存在促进了沸石膜的生长,对沸石膜的形成起着重要的作用。
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| 关 键 词： | 沸石 模板剂 ZSM-5沸石膜 多孔炭 无机膜 |
| 文章编号： | 1673-4939(2007)03-0161-05 |
| 修稿时间： | 2007-09-01 |
Preparation of Template-free ZSM-5 Zeolite Membranes on Tubular Carbon Supports |
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| ZOU Ben-xue,SI Bo,ZHANG Xiong-fu. Preparation of Template-free ZSM-5 Zeolite Membranes on Tubular Carbon Supports[J]. Journal of Liaodong University(Natural Sciences), 2007, 14(3): 161-165 |
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| Authors: | ZOU Ben-xue SI Bo ZHANG Xiong-fu |
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| Abstract: | Template-free ZSM-5 zeolite membranes with high Si/Al ratio have been successfully synthesized on the carbon tubes by seeded secondary synthesis.Their properties were characterized by XRD,SEM,single gas permeance tests.The results indicate that the membrane is dense,free-defected with good molecule selecting property.Ratios of Na/Si,water/Si and Si/Al which affected the quality of zeolite membrane were also systematically examined.The results show that seeds and Al3+ ion play an important role in the growth of the template-free ZSM-5 zeolite membranes,though the seeds would weaken structural guide function of Na+ 's.Seeds on carbon tubes are importantly conducive to the formation and growth of zeolite membrane. |
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| Keywords: | zeolite template ZSM-5 zeolite membrane porous carbon inorganic membrane |
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