Investigation of phase separation of nano-crystalline anatase from TiO2-SiO2 thin film

被引：10

作者：

Biglu, Y. Farhang Ghoje ^{[1
]}

Taheri-Nassaj, E. ^{[1
]}

机构：

[1] Tarbiat Modares Univ, Dept Mat Sci & Engn, Tehran, Iran

来源：

CERAMICS INTERNATIONAL | 2013年 / 39卷 / 03期

关键词：

Films; Sol-gel process; SiO2; TiO2; SOL-GEL; MIXED OXIDES; SILICA;

D O I：

10.1016/j.ceramint.2012.09.010

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this work, a set of SiO2-TiO2 mixed oxides was prepared by the polymeric sol-gel route and deposited on glass substrate through the dip coating technique. Then, the effect of different important preparation parameters (sol-gel stabilizers, Ti content, and heat treatment) on the phase separation was investigated. The developed films were heat treated at 500 degrees C and characterized using TGA/DTA, FTIR, XRD, SEM, and AFM. The results showed that TiO2 segregation can be controlled by selecting an appropriate composition of diethanolamine (DEA) and methyl methacrylate (MMA) for preparation of polymeric silica-titania sol. Besides, anatase phase in the samples were crystallized without any stabilizers within heat treatment procedure at 500 degrees C; however, using appropriate composition of DEA and MMA crystallization rate significantly decreased. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：2511 / 2518

页数：8

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