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Acta Phys. -Chim. Sin.  2013, Vol. 29 Issue (09): 2062-2068    DOI: 10.3866/PKU.WHXB201306213
PHYSICAL CHEMISTRY OF MATERIALS     
Microwave-Hydrothermal Synthesis and Photocatalytic Activity of Zn2GeO4 Nanoribbons
DU Shu-Qing, YUAN Yu-Feng, TU Wei-Xia
State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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Abstract  

Zn2GeO4 nanoribbons were synthesized via a microwave-hydrothermal method. The effects of reaction factors, such as reaction temperature, amount of reactants and template, were investigated and optimized for the formation of Zn2GeO4 nanoribbons. The products were characterized by various techniques including field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), and ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS). Photocatalytic activities of the synthesized Zn2GeO4 nanostructures were evaluated for the degradation of aqueous methyl orange. Experimental results indicated that Zn2GeO4 nanoribbons can be synthesized from Zn(CH3COO)2 and GeO2 (molar ratio 2: 1) under microwave irradiation at 160℃ for 20 min. The nanoribbons have uniformsizes with widths of 100 nm and are tens of micrometers in length. Compared with conventional hydrothermal methods, Zn2GeO4 nanoribbons from microwave-hydrothermal synthesis have less native defects, lower PL spectra, 50.7% larger specific surface area, and 54.7% higher photocatalytic activity.



Key wordsMicrowave-hydrothermal synthesis      Zn2GeO4      Nanoribbon      Photocatalyst      Degradation of organics     
Received: 26 April 2013      Published: 21 June 2013
MSC2000:  O643  
  O644  
Fund:  

The project was supported by the National Natural Science Foundation of China (21106006).

Corresponding Authors: TU Wei-Xia     E-mail: tuwx@mail.buct.edu.cn
Cite this article:

DU Shu-Qing, YUAN Yu-Feng, TU Wei-Xia. Microwave-Hydrothermal Synthesis and Photocatalytic Activity of Zn2GeO4 Nanoribbons. Acta Phys. -Chim. Sin., 2013, 29(09): 2062-2068.

URL:

http://www.whxb.pku.edu.cn/10.3866/PKU.WHXB201306213     OR     http://www.whxb.pku.edu.cn/Y2013/V29/I09/2062

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