物理化学学报 >> 2009, Vol. 25 >> Issue (11): 2275-2278.doi: 10.3866/PKU.WHXB20091109

研究论文 上一篇    下一篇

硅源对ITQ-13分子筛水热合成的影响

徐臣, 管景奇, 吴淑杰, 阚秋斌   

  1. 吉林大学化学学院, 长春 130023
  • 收稿日期:2009-06-01 修回日期:2009-07-27 发布日期:2009-10-28
  • 通讯作者: 阚秋斌 E-mail:qkan@mail.jlu.edu.cn

Effect of Silica Source on the Hydrothermal Synthesis of ITQ-13 Zeolite

XU Chen, GUAN Jing-Qi, WU Shu-Jie, KAN Qiu-Bin   

  1. College of Chemistry, Jilin University, Changchun 130023, P. R. China
  • Received:2009-06-01 Revised:2009-07-27 Published:2009-10-28
  • Contact: KAN Qiu-Bin E-mail:qkan@mail.jlu.edu.cn

摘要:

通过三种硅源, 正硅酸已脂(TEOS)、胶体二氧化硅、气相法白炭黑, 成功地合成出ITQ-13分子筛, 并用X射线衍射(XRD)、扫描电子显微镜(SEM)、BET表面积测试和氘代乙腈吸附等方法对合成的材料进行表征. 结果表明, 用硅胶和白炭黑为硅源合成出的ITQ-13具有较好的晶化度和较大的晶体尺寸.

关键词: 晶化度, 硅源, ITQ-13分子筛

Abstract:

ITQ-13 zeolite was successfully synthesized using three silica sources, i.e., tetraethylorthosilicate (TEOS), colloidal silica, and fumed silica, and was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), BET surface area, and acidity by the adsorption of d3-acetonitrile. Characterization results showed that the ITQ-13 samples synthesized using colloidal silica and fumed silica possessed better crystallinity and larger crystals than those synthesized by the TEOS route.

Key words: Crystallinity, Silica sources, ITQ-13 zeolite

MSC2000: 

  • O643