ZnO-based hollow microspheres with mesoporous shells: Polyoxometalate-assisted fabrication, growth mechanism and photocatalytic properties

被引：26

作者：

Li, Qiuyu ^{[1
,2
]}

Chen, Weilin ^{[1
]}

Ju, Mingiang ^{[1
]}

Liu, Lin ^{[1
]}

Wang, Enbo ^{[1
]}

机构：

[1] NE Normal Univ, Dept Chem, Minist Educ, Key Lab Polyoxometalate Sci, Changchun 130024, Jilin, Peoples R China

[2] Jilin Business & Technol Coll, Dept Bioengn, Changchun 130062, Jilin, Peoples R China

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2011年 / 184卷 / 06期

基金：

美国国家科学基金会;

关键词：

ZnO; Hollow spheres; Polyoxometalate; Photocatalytic properties; NANOPARTICLES; SPHERES; AGGREGATION; NANOCRYSTALLITES; NANOSTRUCTURES; NANOSPHERES; NANORODS; SILVER; CU2O;

D O I：

10.1016/j.jssc.2011.04.006

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

With the assistance of Keggin-type polyoxometalate, ZnO hollow microspheres with mesoporous shells were synthesized via a simple solvothermal approach without any templates and surfactants. The observations of morphology and structure performed by field emission scanning electronic microscopy and transmission electron microscopy indicated that the shells of the ZnO hollow spheres were built from nanosheets which were composed of nanoparticles. The transformation of structure and composition of samples were investigated by X-ray diffraction, X-ray photoelectron spectrometry and fourier transform infrared absorption spectroscopy. The formation mechanism of the hollow spheres is proposed based on time-dependent experimental results. The ZnO hollow microspheres exhibited a high photocatalytic activity for decolorization of Rhodamine B under ultraviolet irradiation. (C) 2011 Elsevier Inc. All rights reserved.

引用

页码：1373 / 1380

页数：8

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