Mesoporous-assembled V2O5 nanosheet synthesized via a surfactant-modified sol-gel technique and its photocatalytic H2 production activity under visible light irradiation

被引：31
|
作者：
Puangpetch, Tarawipa [2 ]
Chavadej, Sumaeth [1 ,3 ]
Sreethawong, Thammanoon [1 ,3 ]
机构：
[1] Chulalongkorn Univ, Petr & Petrochem Coll, Bangkok 10330, Thailand
[2] Silpakorn Univ, Fac Engn & Ind Technol, Dept Chem Engn, Nakhon Pathom 73000, Thailand
[3] Chulalongkorn Univ, Ctr Petr Petrochem & Adv Mat, Bangkok 10330, Thailand
来源：
POWDER TECHNOLOGY | 2011年 / 208卷 / 01期
关键词：
Vanadium oxide; Nanosheet; Mesoporous assembly; Structure-directing surfactant; Sol-gel technique; VANADIUM-OXIDE NANOTUBES; ELECTROCHEMICAL PROPERTIES; THIN-FILMS; HYDROTHERMAL SYNTHESIS; PENTOXIDE POWDERS; NANOCRYSTAL; EVOLUTION; NANOBELTS; ROUTE;
D O I：
10.1016/j.powtec.2010.11.039
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A modified sol-gel technique with the aid of a structure-directing surfactant was employed to synthesize highly crystalline mesoporous-assembled V2O5 nanosheet under mild conditions. The synthesized V2O5 nanosheet was systematically characterized by TG-DTA, XRD, N-2 adsorption-desorption, high resolution TEM, and UV-visible spectroscopy analyses. The characterization results revealed that the synthesized V2O5 nanosheet exhibited not only high crystallinity but also narrow pore size distribution in the mesoporous range. The photocatalytic H-2 production activity of the synthesized mesoporous-assembled V2O5 nanosheet from both self photoexcitation and dye photosensitization systems under visible light irradiation was also found to be higher than that of a commercially available V2O5 powder. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：37 / 41
页数：5
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