期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 100, 期 2-3, 页码 507-512出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2006.02.002
关键词
nanocomposites; nanotubes; nanocrystals; fabrication; hydrothermal reaction
The nanocomposites of one-dimensional (ID) titanate nanotubes and OD rutile nanocrystals were fabricated by hydrothermal treatment of bulky rutile TiO2 powders in a 10 M NaOH solution without using any templates and catalysts. The as-prepared samples were characterized with transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) surface area, Fourier transform infrared spectroscopy (FTIR), UV-visible spectrophotometry (UNT-vis), Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). It was found that many small rutile nanocrystal particles of about 5 nm could uniformly attach to the outer surface and in the inner of the titanate nanotubes, forming an interesting and novel nanocomposite structure. Adjusting reaction time could control the amount of rutile nanoparticles in the nanocomposites. With increasing reaction time, the specific surface areas, porosity, pore volume, UV absorption and band gap energies of the nanocomposites gradually increased due to the fact that rutile particles were steadily turned into the tubular nanocomposites, finally completely formed titanate nanotubes. (c) 2006 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据