Controlled synthesis α-Fe2O3 nanostructures for efficient photocatalysis

被引：62
|
作者：
Wang, Chao [1 ,2 ]
Huang, Zhixiong [1 ]
机构：
[1] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China
[2] Hubei Univ Educ, Sch Construct & Mat Engn, Wuhan 430205, Peoples R China
来源：
MATERIALS LETTERS | 2016年 / 164卷
关键词：
Semiconductors; Solar energy materials; Photocatalyst; alpha-Fe2O3; Nanostructures; TEMPLATE; GOLD;
D O I：
10.1016/j.matlet.2015.10.152
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
alpha-Fe2O3 microspheres and nanospheres were successfully fabricated by a simple solvothermal method in ethanol-water mixed solvent, with the assistance of NaCl and NaBr, respectively. The as-prepared sample was characterized by XRD, FESEM, TEM, BET surface area, and UV-vis diffuse reflectance spectra. The photocatalytic activity of the alpha-Fe2O3 nanostructures was evaluated by photocatalytic degradation of ithodamine B under visible-light irradiation. The results show that alpha-Fe2O3 nanospheres prepared in the presence of NaBr exhibit much better photocatalytic activity than alpha-Fe2O3 microspheres prepared in the presence of NaCl. The good photocatalytic activity of alpha-Fe2O3 nanospheres is attributed to the larger surface area and enhanced light absorption. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：194 / 197
页数：4
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