真空填充胶晶模板法快速制备三维有序大孔二氧化钛

doi:10.3724/SP.J.1095.2014.40048

摘要/Abstract

摘要： 以丙烯酸修饰的聚苯乙烯（PS）胶体晶体为模板，采用“三明治-真空”填充法将钛酸四丁酯的乙醇溶液填充到模板间隙中，煅烧除去模板快速高效制备了表面无覆盖层的三维有序大孔二氧化钛（3DOM TiO2）材料。制备的3DOM TiO2具有典型的反蛋白石结构，孔壁完整且孔径大小均匀,呈六方密堆积的FCC结构。其孔径为230 nm左右，收缩率仅为14%，孔与孔之间由小窗口相连。 XRD分析表明，500 ℃下煅烧制备的3DOM TiO2为锐钛矿晶型。

关键词: &, ldquo, 三明治-真空&, rdquo, 填充法, 胶体晶体模板, 三维有序大孔二氧化钛, 锐钛矿

Abstract: The three-dimensional ordered macroporous titanium dioxide(3DOM TiO2) was rapidly fabricated via a sandwich-vacuum method. In this method, tetrabutyl titanate in ethanol solution was filled in the voids between the acrylic acid-modified polystyrene(PS) colloidal crystals that served as the templates and calcified to form 3DOM TiO2. The template was removed during calcination. 3DOM TiO2 has a typical inverse opal structure, and the macropores are arranged in a face-centered cubic(fcc) structure and interconnect with each other by small windows. The average diameter of macroporores is about 230 nm with a shrinkage of about 14%. The XRD result shows that the structure of macropores calcined at 500 ℃ is anatase.

Key words: sandwich-vacuum method, colloidal crystal template, three-dimensional ordered macroporous titanium dioxide, anatase

中图分类号:

O647

张晨, 刘缓缓, 陈明清, 刘士荣. 真空填充胶晶模板法快速制备三维有序大孔二氧化钛[J]. 应用化学, DOI: 10.3724/SP.J.1095.2014.40048.

ZHANG Chen, LIU Huanhuan, CHEN Mingqing, LIU Shirong*. Rapid Fabrication of Three-dimensional Ordered Macroporous Titanium Dioxide via Vacuum Filling of Colloidal Crystal Templates[J]. Chinese Journal of Applied Chemistry, DOI: 10.3724/SP.J.1095.2014.40048.

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