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Chemical modification and the photoluminescence stabilization of titanic acid nanotubes
作者姓名:ZHANG Xingtang  WANG Yumei  ZHANG Chunmei  JIANG Xiaohong  TIAN Baoli  LI Yuncai  HUANG Yabin & DU Zuliang Key Laboratory for Special Functional Materials  Henan University  Kaifeng  China Correspondence should be addressed to Du Zuliang
作者单位:ZHANG Xingtang,WANG Yumei,ZHANG Chunmei,JIANG Xiaohong,TIAN Baoli,LI Yuncai,HUANG Yabin & DU Zuliang Key Laboratory for Special Functional Materials,Henan University,Kaifeng 457001,China Correspondence should be addressed to Du Zuliang
摘    要:1 Introduction In 1998, Kasuga et al. obtained a new kind of nanotubular materials by treating anatase TiO2 power with concentrated NaOH aqueous solution1,2]. This work soon aroused general concern due to their exten- sive applications in the photoelectr…

收稿时间:14 January 2005
修稿时间:15 March 2005

Chemical modification and the photoluminescence stabilization of titanic acid nanotubes
ZHANG Xingtang,WANG Yumei,ZHANG Chunmei,JIANG Xiaohong,TIAN Baoli,LI Yuncai,HUANG Yabin & DU Zuliang Key Laboratory for Special Functional Materials,Henan University,Kaifeng ,China Correspondence should be addressed to Du Zuliang.Chemical modification and the photoluminescence stabilization of titanic acid nanotubes[J].Science in China(Chemistry),2006,49(2):155-161.
Authors:ZHANG Xingtang  WANG Yumei  ZHANG Chunmei  JIANG Xiaohong  TIAN Baoli  LI Yuncai  HUANG Yabin  DU Zuliang
Institution:Key Laboratory for Special Functional Materials, Henan University, Kaifeng 457001, China
Abstract:Titanic acid nanotubes (H2Ti2O4(OH)2) were surface-modified with cetyl alcohol through dehydration reaction because of existence of Ti-OH. The modified nanotubes were characterized by transmission electron microscopy (TEM), Fourier Transform Infrared (FT-IR) spectrometry and photoluminescence (PL) spectra. The results indicate that the modified nanotubes can be easily dispersed into organic solvent such as chloroform and toluene in contrast with the unmodified nanotubes, which makes it easier to be assembled by LB technique. Moreover, the Ti-O-CH2(CH2)14CH3 on the surface of the nanotubes can hinder the adsorption of water and consequently the photoluminescence property of the nanotubes can be stabilized. Even though kept in humid condition or in air for a long time, the modified nanotubes also maintain the special photoluminescence property in the visible region.
Keywords:titanic acid nanotubes  surface-modification  photoluminescence
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