| 微波散射MCM-41介孔分子筛担载醋酸镧的制备及表征 |
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| 引用本文： | 赵延良,李茂民,丛健,宋伟明,邓启刚.微波散射MCM-41介孔分子筛担载醋酸镧的制备及表征[J].齐齐哈尔轻工业学院学报,2012(2):1-4. |
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| 作者姓名： | 赵延良 李茂民 丛健 宋伟明 邓启刚 |
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| 作者单位： | 齐齐哈尔大学化学与化学工程学院,黑龙江齐齐哈尔161006 |
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| 基金项目： | 黑龙江省自然科学基金资助项目（B201010） |
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| 摘 要： | 水热法合成了纯硅MCM-41介孔分子筛，通过微波散射制备了系列不同硅镧摩尔比的LaAc／MCM-41（LaAcM）介孔分子筛。通过XRD、IR、N2吸附脱附等方法对分子筛的晶体结构和表面物性进行了表征。结果表明，当担载量n（Si）：，2（La）=30：1．0时，LaAcM Hammett碱量最大，为0．20mmol／g，／40介于＋6．8与＋4．6之间，比表面积为1287m^2／g，孔容0．8273cm^3／g，孔径2．571nm。样品具有典型的六方介孔结构特征。
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| 关 键 词： | 醋酸镧 微波散射 担载 介孔分子筛 |
The synthesis and characterization of lanthanum acetic acid salts modified MCM-41 mesoporous molecular sieve |
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| Authors: | ZHAO Yan-liang LI Mao-ming CONG Jian SONG Wei-ming DENG Qi-gang |
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| Affiliation: | ( College of Chemistry and Chemical Engineering, Qiqihar University, Heilongiiang Qiqihar 161006, China ) |
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| Abstract: | Pure silicon MCM-41 mesoporous molecular sieves was synthetized through Hydrothermal.A series of different Si/La （mole） of the LaAc/MCM-41 （LaAcM） mesoporous molecular sieve was prepared through microwave scattering. The crystal structure and surface property of mole-cular sieve were characterized by the XRD, IR, and N2 adsorption desorption and so on. The results showed that loadded n （Si）：n （La） = 30：1.0, organic acid group content of LaAcM was 0.20mmol/g by hammett. H0 was between ＋6.8 and ＋4.6. The BET surface area of LaAcM was 1 287 m2·g^-1 with the pore volume of 0.827 3 cm3.g^-1 and pore size of 2.571 nm. Samples possessed typical hexagonal symmetry mesoporous material. |
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| Keywords: | acetic acid lanthanum microwave scattering loaded mesoporous molecular sieve |
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