Y/SBA-15的微波水热法合成及其表征分析

doi:10.12068/j.issn.1005-3026.2015.03.021

东北大学学报:自然科学版 ›› 2015, Vol. 36 ›› Issue (3): 397-401.DOI: 10.12068/j.issn.1005-3026.2015.03.021

Y/SBA-15的微波水热法合成及其表征分析

史春薇，吴文远，边雪，百玉婷

(东北大学材料与冶金学院，辽宁沈阳110819)

收稿日期:2014-01-08 修回日期:2014-01-08 出版日期:2015-03-15 发布日期:2014-11-07
通讯作者: 史春薇
作者简介:史春薇(1981-)，女，辽宁抚顺人，东北大学博士研究生；吴文远(1952-)，男，河南驻马店人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(51274060)；教育部高等学校博士学科点专项科研基金资助项目(20100042110008).

Microwave Hydrothermal Synthesis and Characterization of Y/SBA-15

SHI Chun-wei， WU Wen-yuan， BIAN Xue， BAI Yu-ting

School of Materials & Metallurgy， Northeastern University， Shenyang 110819， China.

Received:2014-01-08 Revised:2014-01-08 Online:2015-03-15 Published:2014-11-07
Contact: WU Wen-yuan
About author:-
Supported by:
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摘要/Abstract

摘要： 研究了微波水热法合成微孔-介孔复合分子筛Y/SBA-15，以XRD为表征手段，考察了pH、二氧化硅与P123物质的量比、微波功率、搅拌速度和晶化温度等因素对复合分子筛结构的影响.经过研究确定了复合分子筛的合成条件:pH值为2.5，SiO₂和P123物质的量比为58，微波功率为200W，搅拌速度为250r/min，晶化温度为120℃.采用氮气吸附脱附、透射电镜等分析方法对复合分子筛进行了表征分析，结果表明:合成产物同时具有微孔介孔结构特征，结晶度良好、短棒状大小均匀，微孔、介孔2种孔径分布均匀，平均孔径为4.05013nm，孔壁厚度为2.2nm，BET孔容为0.350525cm³/g.

关键词: 微波水热法, 复合分子筛, 表征分析, 微孔, 介孔

Abstract: A microwave radiation hydrothermal method to control synthesis of micro-and mesoporous Y/SBA-15 composite molecular sieves was reported. The effects of pH， molar ratio of silica and P123， microwave power， stirring speed， and crystallization temperature on the growth of Y/SBA-15 were observed by X-ray diffraction(XRD). The composite zeolite synthesis conditions were identified:the pH value was 2.5， the molar ratio of silica and P123 was 58， the microwave power was 200W， the stirring speed was 250r/min， and the crystallization temperature was 120℃. The synthesized samples were characterized by N₂ adsorption-desorption and TEM. The results showed that synthetic products with regular crystallinity of short rod of uniform size show the microporous and the mesoporous structures at the same time. Pore size distribution of microporous and mesoporous structures is uniform. The adsorption study indicated that Y/SBA-15 has the average pore diameter of 4.05013nm， the pore volume of 0.350525cm³/g， and the hole wall thickness of 2.2nm， respectively.

Key words: microwave hydrothermal method, composite molecular sieve, characterization, microporous, mesoporous

中图分类号:

O643.3

史春薇，吴文远，边雪，百玉婷. Y/SBA-15的微波水热法合成及其表征分析[J]. 东北大学学报:自然科学版, 2015, 36(3): 397-401.

SHI Chun-wei， WU Wen-yuan， BIAN Xue， BAI Yu-ting. Microwave Hydrothermal Synthesis and Characterization of Y/SBA-15[J]. Journal of Northeastern University Natural Science, 2015, 36(3): 397-401.

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Y/SBA-15的微波水热法合成及其表征分析

Microwave Hydrothermal Synthesis and Characterization of Y/SBA-15

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