Can mixed anatase and rutile photocatalyst TiO2 be synthesized under high pressure in water?

被引：2
|
作者：
Yu, Cheng-Long [1 ]
Liu, Hang [1 ]
Song, Jie [1 ]
Yang, Jing [1 ]
Zhang, Peng-Cheng [1 ]
Guo, Fang-Lin [1 ]
Hong, Lin [1 ]
Hui, Huai-Bing [1 ,2 ]
机构：
[1] Shaanxi Univ Sci & Technol, Sch Mat Sci & Engn, Xian 710021, Shaanxi, Peoples R China
[2] Dongfeng Motor Grp Co Ltd, Wuhan 442003, Hubei, Peoples R China
来源：
MATERIALS LETTERS | 2019年 / 246卷
基金：
中国国家自然科学基金;
关键词：
Powder technology; Phase transformation; Nanoparticles; JUNCTION;
D O I：
10.1016/j.matlet.2019.02.130
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have reported for the first time the synthesis of mixed anatase and rutile TiO2 under 27 MPa in water at the temperature as low as 375 degrees C. XRD patterns show that the content of rutile in the mixed phase TiO2 is increased by 47.7% compared with the raw TiO2. The average particle size of the mixed phase TiO2 is increased obviously compared with the raw TiO2. Compared with that of the raw TiO2, the band gap of the mixed phase TiO2 is reduced to 2.94 eV while the absorbance is enhanced. Although the particle size increases, the mixed phase TiO2 still exhibits better photocatalytic performance. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页码：133 / 136
页数：4
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