期刊
MATERIALS RESEARCH BULLETIN
卷 47, 期 9, 页码 2422-2427出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2012.05.032
关键词
Nanostructures; Semiconductors; Chemical synthesis; Catalytic properties
资金
- Natural Science Grant of China [21021062]
- US National Science Foundation [CHE-1012173]
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1012173] Funding Source: National Science Foundation
In this work, a facile and rapid microwave-assisted hydrothermal route has been developed to prepare Bi2GeO5 nanoflakes. Ag nanoparticles were subsequently deposited on the Bi2GeO5 nanoflakes by a photoreduction procedure. The phases and morphologies of the products were characterized by powder X-ray diffraction (XRD), X-ray photoelectron spectrum (XPS), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and UV-vis diffuse reflectance spectroscopy. Photocatalytic experiments indicate that such Ag/Bi2GeO5 nanocomposite possesses higher photocatalytic activity for RhB degradation under UV light irradiation in comparison to pure Bi2GeO5. The amount of Ag in the nanocomposite affects the catalytic activity, and 3 wt% Ag showed the highest photodegradation efficiency. Moreover, the catalyst remains active after four consecutive tests. The present study provides a new strategy to design composite materials with enhanced photocatalytic activity. (C) 2012 Elsevier Ltd. All rights reserved.
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