Urea-based hydrothermal growth, optical and photocatalytic properties of single-crystal line In(OH)3 nanocubes

被引：76

作者：

Yan, Tingjiang ^{[1
]}

Wang, Xuxu ^{[1
]}

Long, Jinlin ^{[1
]}

Liu, Ping ^{[1
]}

Fu, Xianliang ^{[1
]}

Zhang, Guoying ^{[1
]}

Fu, Xianzhi ^{[1
]}

机构：

[1] Fuzhou Univ, Res Inst Photocatalysis, State Key Lab Breeding Base Photocatalysis, Fuzhou 350002, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2008年 / 325卷 / 02期

基金：

中国国家自然科学基金;

关键词：

urea; hydrothermal synthesis; benzene; photocatalyst; In(OH)(3);

D O I：

10.1016/j.jcis.2008.05.065

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nearly monodisperse single-crystalline In(OH)(3) nanocubes were successfully synthesized using In(NO3)(3) 4.5H(2)O as indium source in the presence of urea and cetyltrimethyl ammonium bromide (CTAB) by a two-step hydrothermal process: the stock solution was heated at 70 degrees C for 24 h and then at 120 degrees C for 12 h. The Structure and morphology of the resultant In(OH)(3) samples were determined by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The results revealed that most of as-synthesized In(OH)(3) nanocubes were uniform in size, with the average edge length of similar to 700 nm. The influences of the reaction temperature, the reaction time, the mineralizer, and the surfactant on the morphology of the obtained products were discussed in detail. Room-temperature photoluminescence (PL) spectrum of the In(OH)(3) nanocubes showed a peculiar strong emission peak centered at 480 nm. Furthermore, the photocatalytic properties of the In(OH)(3) nanocubes were tested. It was found that In(OH)3 exhibited not only higher activity for benzene removal, but also better H-2 evolution from water than the commercial Degussa P25 TiO2. (c) 2008 Elsevier Inc. All rights reserved.

引用

页码：425 / 431

页数：7

共 30 条

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