Issue 4, 2011
From the journal:

Nanoscale

An environmentally benign solvothermal method for the synthesis of nanostructured Cd5(OH)8(NO3)2(H2O)2: templates for the generation of nanoporous CdO materials with photocatalytic properties†

Zai-Xing Yang,a   Wei Zhong,*a   Lei Zhang,b   Chak-Tong Au,c   Hong-Xing Dai*b  and  You-Wei Dua  

* Corresponding authors

a Nanjing National Laboratory of Microstructures and Department of Physics, Nanjing University, Nanjing, People's Republic of China
E-mail: wzhong@mail.nju.edu.cn

b Laboratory of Catalysis Chemistry and Nanoscience, Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, People's Republic of China
E-mail: hxdai@bjut.edu.cn
Fax: +86-25-83595535
Tel: +86-25-83621200

c Chemistry Department, Hong Kong Baptist University, Hong Kong, People's Republic of China

Abstract

Using Cd(NO3)2·4H2O as a precursor and ethanol/water as the solvent, we synthesized Cd5(OH)8(NO3)2(H2O)2 nanowires and nanobelts through a simple solvothermal method. Unlike the conventional oil–water surfactant approach, the adopted method is biologically safe, simple and environmentally benign. The morphology and size of the obtained materials were studied by FESEM. The results revealed that it is possible to assemble nanowires into microblocks by changing the ethanol/water ratio. Furthermore, the results of XRD investigation suggested that the change of ethanol/water ratio can have an influence on the crystalloid phases of Cd5(OH)8(NO3)2(H2O)2. Through calcination of the as-synthesized compounds in air, nanoporous CdO can be generated. We found that the as-obtained CdO materials are photocatalytically active in the degradation of methylene blue. It is envisaged that this environmentally benign method is also suitable for the synthesis of nanostructures of other oxides such as MgO and CuO.

Graphical abstract: An environmentally benign solvothermal method for the synthesis of nanostructured Cd5(OH)8(NO3)2(H2O)2: templates for the generation of nanoporous CdO materials with photocatalytic properties

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Article information

DOI
https://doi.org/10.1039/C1NR10073D
Article type
Paper
Submitted
19 Jan 2011
Accepted
15 Feb 2011
First published
21 Mar 2011

Nanoscale, 2011,3, 1887-1893

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An environmentally benign solvothermal method for the synthesis of nanostructured Cd5(OH)8(NO3)2(H2O)2: templates for the generation of nanoporous CdO materials with photocatalytic properties

Z. Yang, W. Zhong, L. Zhang, C. Au, H. Dai and Y. Du, Nanoscale, 2011, 3, 1887 DOI: 10.1039/C1NR10073D

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