Synthesis of anatase TiO2 with exposed {001} and {101} facets and photocatalytic activity

被引：0
|
作者：
Jia Sun [1 ,2 ]
Ming Zhang [1 ,3 ]
Zhi-Feng Wang [1 ,3 ]
Hai-Yan Chen [1 ,4 ]
Ye Chen [1 ,2 ]
Naoya Murakami [2 ]
Teruhisa Ohno [2 ,5 ]
机构：
[1] School of Chemistry and Chemical Engineering, Yangzhou University
[2] Department of Applied Chemistry, Faculty of Engineering,Kyushu Institute of Technology
[3] Testing Center, Yangzhou University
[4] Department of Chemical Engineering, Yangzhou Polytechnic Institute
[5] Japan Science and Technology Agency
来源：
Rare Metals | 2019年 / 38卷 / 04期
基金：
日本科学技术振兴机构;
关键词：
Anatase; {001} and {101} facets; H2O2-NH3;
D O I：
暂无
中图分类号：
O614.411 []; TB383.1 [];
学科分类号：
070205 ; 070301 ; 080501 ; 081704 ; 1406 ;
摘要：
Anatase titanium(Ⅳ) oxide(TiO2) particles with exposed {001} and {101} facets were prepared by hydrothermal treatment of amorphous TiO2with H2O2-NH3solution. Crystal phase, shape, and size of TiO2particles are found to be greatly dependent on the ratio of H2O2-NH3solution. The prepared TiO2particles with specific exposed crystal faces show higher photocatalytic activity for acetaldehyde decomposition than commercial spherical TiO2particles. This result implies that recombination is prevented by spatial separation of redox sites in the particles because of selective migration of electrons and positive holes to specific exposed crystal faces and/or different reactivity of electrons and positive holes on the specific exposed crystal face.
引用
收藏
页码：287 / 291
页数：5
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