[1]范文健,顾敏芬,马青玉,等.TiO2水助晶的热分析（英文）[J].南京师范大学学报(自然科学版),2016,39(01):62.
　Fan Wenjian,Gu Minfen,Ma Qingyu,et al.Thermal Analysis for Water-AssistedCrystallization of TiO2 Particles[J].Journal of Nanjing Normal University(Natural Science Edition),2016,39(01):62.
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TiO2水助晶的热分析（英文）()
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《南京师范大学学报》（自然科学版）[ISSN:1001-4616/CN:32-1239/N]

卷:
第39卷
期数:
2016年01期
页码:
62
栏目:
物理学
出版日期:
2016-03-31

文章信息/Info

Title:
Thermal Analysis for Water-AssistedCrystallization of TiO2 Particles
作者:
范文健1; 顾敏芬1; 2; 马青玉1; 王　昉2
（1.江苏省光电重点实验室，南京师范大学物理科学与技术学院，江苏 南京 210023）（2.南京师范大学分析测试中心，江苏 南京 210023）
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）
关键词:
TiO2; 相转变; 水助; 热分析; 硅油密封
Keywords:
TiO2; phase transition; water-assisted; thermal analysis; dimethylsilicone fluid sealing
分类号:
O657
文献标志码:
A
摘要:
本文提出了一种硅油密封检测水助二氧化钛(TiO2)结晶的热分析方法.采用溶胶-凝胶法制备了非晶态的TiO2，经TEM检测其平均粒径约为200 nm，X射线衍射分析表明TiO2由非晶态向锐钛矿型的转变.热重(TG)和差热(DSC)分析表明，TiO2有明显的热行为，其能够在低温水浸润环境下实现非晶态向锐钛矿型的转变.同时，硅油作为覆盖层减少了水分的挥发，提高了TiO2在结晶过程中DSC的测量精度.较高的浸润温度和较长的浸润时间能够降低TiO2的结晶温度，该研究提供了一种优化低温水浸润环境下合成锐钛矿型TiO2的方法.
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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备注/Memo

备注/Memo:
Received data：2015-01-12.　
Foundation item：Supported by the National Science Foundation of China（11274176，11474166），the Nanjing Laboratory Platform Foundation(1640703064)，and the Natural Science College Foundation of Jiangsu Province（15KJB150018）.　
Corresponding author：Gu Minfen,associate professor,majored in synthesis and characterization of materials. E-mail：40033@njnu.edu.cn
doi：10.3969/j.issn.1001-4616.2016.01.011
更新日期/Last Update: 2016-03-30