Influence of the dispersion medium on the properties of spin-coated Silicalite-1 films

被引：10
|
作者：
Wee, Lik H.
Tosheva, Lubomira
Vasilev, Cvetelin
Doyle, Aidan M.
机构：
[1] Manchester Metropolitan Univ, Div Chem & Mat, Manchester M1 5GD, Lancs, England
[2] Univ Sheffield, Dept Chem, Sheffield S3 7HF, S Yorkshire, England
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2007年 / 103卷 / 1-3期
基金：
英国工程与自然科学研究理事会;
关键词：
spin coating; Silicalite-1; zeolite films; dispersion media; alcohols;
D O I：
10.1016/j.micromeso.2007.02.016
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Purified Silicalite-1 nanocrystals were dispersed in methanol, ethanol, 2-propanol and 1-butanol and Silicalite-1 films were prepared by spin-coating. The properties of the spin coated films were dependent on the dispersion medium. The influence of the different alcohols was studied by preparing films from zeolite suspensions in corresponding alcohols with four different zeolite concentrations, from 1.5 wt.% to 15 wt.%. Similar trends were obtained for the influence of the alcohols independent of the zeolite concentration. Denser films of improved ordering were obtained using the Silicalite-1 nanocrystals dispersed in methanol and 2-propanol compared to ethanol, whereas the films prepared from 1-butanol suspensions were discontinuous. The quality of the films was judged from AFM and SEM images. (c) 2007 Elsevier Inc. All rights reserved.
引用
收藏
页码：296 / 301
页数：6
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