Enhanced photocatalytic activity of hierarchical flower-like CeO2/TiO2 heterostructures

被引：132
|
作者：
Fan, Zhenghua [1 ]
Meng, Fanming [1 ,2 ]
Gong, Jinfeng [1 ]
Li, Huijie [1 ]
Hua, Youdi [1 ]
Liu, Daorui [1 ]
机构：
[1] Anhui Univ, Sch Phys & Mat Sci, Hefei 230601, Peoples R China
[2] Dalian Univ Technol, Key Lab Mat Modificat Laser Ion & Electron Beams, Minist Educ, Dalian 116024, Peoples R China
来源：
MATERIALS LETTERS | 2016年 / 175卷
关键词：
CeO2/TiO2; heterostructures; Nanoparticles; Crystal growth; Photocatalytic activity; Optical materials and properties; DEGRADATION; DETOXIFICATION; NANOPARTICLES; CEO2;
D O I：
10.1016/j.matlet.2016.03.136
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Preparation of flower-like CeO2/TiO2 heterostructures as photocatalysts was successfully obtained by a simple two-step solvothermal/hydrothermal method. The as-prepared sample consisted of the oriented aggregation of small CeO2 nanoparticles supported on the self-assembled nanorods of hierarchical flower-like TiO2. Compared with pure CeO2, pure TiO2 and commercial P25, the flower-like CeO2/TiO2 heterostructures exhibited markedly enhanced photocatalytic activity in the degradation of Rhodamine B (RhB) under UV light irradiation. The enhanced photocatalytic activity of flower-like CeO2/TiO2 heterostructures could be attributed to the improvement of charge separation derived from the coupling effect of TiO2 and CeO2 heterostructures. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：36 / 39
页数：4
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