Chemical modification and the photoluminescence stabilization of titanic acid nanotubes  

作　　者：ZHANG Xingtang WANG Yumei ZHANG Chunmei JIANG Xiaohong TIAN Baoli LI Yuncai HUANG Yabin DU Zuliang 

机构地区：[1]Key Laboratory for Special Functional Materials,Henan University,Kaifeng 457001,China

出　　处：《Science China Chemistry》2006年第2期155-161,共7页中国科学(化学英文版)

基　　金：This work was supported by the National Natural Science Foundation of China(Grant Nos.90306010 and 20371015);State Key Basic Research'973'Plan of China(Grant No.2002CCC02700).

摘　　要：Titanic acid nanotubes(H_(2)Ti_(2)O_(4)(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 pho-toluminescence(PL)spectra.The results indicate that the modified nanotubes can be easily dis-persed 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-CH_(2)(CH_(2))_(14)CH_(3) 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.

关 键 词：titanic acid nanotubes SURFACE-MODIFICATION PHOTOLUMINESCENCE 

分 类 号：N[自然科学总论]