物理化学学报 >> 2011, Vol. 27 >> Issue (04): 959-964.doi: 10.3866/PKU.WHXB20110417

催化和表面科学 上一篇    下一篇

Y沸石的高温合成

单志超1, 刘思宇1, 李彩今1, 朱龙凤1, 孟祥举2, 肖丰收2   

  1. 1. 吉林大学化学学院, 无机合成与制备化学国家重点实验室, 长春 130012;
    2. 浙江大学催化研究所, 杭州 310028
  • 收稿日期:2010-10-25 修回日期:2011-01-06 发布日期:2011-03-29
  • 通讯作者: 孟祥举, 肖丰收 E-mail:fsxiao@mail.jlu.edu.cn; mengxj@zju.edu.cn
  • 基金资助:

    国家自然科学基金(20973079)资助项目

High-Temperature Synthesis of Zeolite Y

SHAN Zhi-Chao1, LIU Si-Yu1, LI Cai-Jin1, ZHU Long-Feng1, MENG Xiang-Ju2, XIAO Feng-Shou2   

  1. 1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China;
    2. Institute of Catalysis, Zhejiang University, Hangzhou, 310028, P. R. China
  • Received:2010-10-25 Revised:2011-01-06 Published:2011-03-29
  • Contact: MENG Xiang-Ju, XIAO Feng-Shou E-mail:fsxiao@mail.jlu.edu.cn; mengxj@zju.edu.cn
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (20973079).

摘要:

采用甲基三乙氧基硅烷(MTS)为添加剂, 在高温(140 °C)条件下水热合成出具有六方片状形貌的Y型沸石. 相比于100 °C左右合成的Y型沸石, 高温合成的Y沸石具有更高的硅铝比值、更大的晶体宽厚比值以及对有机挥发物具有优异的吸附性能. 通过X射线衍射(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、29Si固体核磁共振(NMR)、傅里叶变换红外(FTIR)光谱、碳氢氮元素分析(CHN)、水接触角等表征, 证明了所合成的新型Y沸石具有甲基基团, 它们的存在增强了疏水性能, 提高了对有机挥发物的吸附能力.

关键词: Y沸石, 高温, 片状形貌, 吸附, 有机硅烷

Abstract:

We hydrothermally synthesized sheet-like crystals of zeolite Y at high temperature (140 °C) using methyltriethoxysilane (MTS) as an additivity. Compared with the zeolite Y synthesized at 100 °C, the zeolite Y synthesized at high temperature has a high Si/Al ratio, a large crystalline width/thickness ratio and has good adsorption for organic volatile compounds. Characterization by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), 29Si nuclear magnetic resonance (NMR), Fourier transform infrared (FTIR) spectroscopy, elemental analysis and water contact angle measurements suggests that the zeolite Y synthesized at high temperature contains methyl groups, which can be responsible for the improvement in sample hydrophobicity and adsorption capacity.

Key words: Zeolite Y, High-temperature, Sheet-like morphology, Adsorption, Organosilane

MSC2000: 

  • O643