|Table of Contents|

Thermal Analysis for Water-AssistedCrystallization of TiO2 Particles(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2016年01期
Page:
62-
Research Field:
物理学
Publishing date:

Info

Title:
Thermal Analysis for Water-AssistedCrystallization of TiO2 Particles
Author(s):
Fan Wenjian1; Gu Minfen1; 2; Ma Qingyu1; Wang Fang2
（1.Key Laboratory of Optoelectronics of Jiangsu Province，School of Physics Science and Technology，Nanjing Normal University，Nanjing 210023，China）（2.Analysis and Testing Center，Nanjing Normal University，Nanjing 210023，China）
Keywords:
TiO2; phase transition; water-assisted; thermal analysis; dimethylsilicone fluid sealing
PACS:
O657
DOI:
-
Abstract:
An improved thermal treatment with dimethylsilicone fluid sealing was proposed for water-assisted crystallization of TiO2 particles. With the amorphous titanium dioxide（TiO2）particles fabricated using sol-gel method，an average diameter of about 200 nm was first measured by transmission electron microscopy，and then the phase transition of TiO2 from amorphous to anatase was also identified by X-ray diffraction before and after the crystallization process. Obvious thermal behaviors obtained by thermogravimetric（TG）and differential scanning calorimeter（DSC）analysis demonstrated that the conversion from amorphous to anatase phase of TiO2 could be realized at low temperature in water. Meanwhile，with dimethylsilicone fluid sealing，water loss was reduced to enhance the accuracy of DSC during the crystallization of TiO2 particles. Anatase TiO2 can be produced with reduced temperature for higher soaking temperature and longer soaking time. This study provides an environmental method for low-temperature synthesis of anatase TiO2 with the assistance of water.

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Last Update: 2016-03-30