Investigation on the surface state of TiO2 ultrafine particles by luminescence

被引：73
|
作者：
Zhu, YC [1 ]
Ding, CX [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 1999年 / 145卷 / 02期
关键词：
D O I：
10.1006/jssc.1999.8292
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The surface states of TiO2 ultrafine particles (UFP) are characterized by luminescence spectra and UV-absorption spectra. In order to confirm whether the emission at 475 nm originates from the surface state, the as-prepared TiO2 UFP are plasma-treated. The results indicate that surface states related to the TiOH and TiOC2H5 groups play an important role in the emission and UV-absorption of TiO2UFP. Both quantum confinement and dielectric confinement effects have been used for discussing the emission and UV-absorption properties of TiO2 UFP. (C) 1999 Academic Press.
引用
收藏
页码：711 / 715
页数：5
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