Issue 33, 2013
From the journal:

CrystEngComm

Fabrication of porous Cd-doped ZnO nanorods with enhanced photocatalytic activity and stability†

Yin Peng,a   Shuchun Qin,a   Wan-Sheng Wangb  and  An-Wu Xu*b  

* Corresponding authors

a College of Chemistry and Materials Science, Key Laboratory of Functional Molecular Solids of Chinese Ministry of Education, Anhui Normal University, Wuhu 241000, China

b Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230026, China
E-mail: anwuxu@ustc.edu.cn

Abstract

Porous Cd-doped ZnO nanorods have been successfully synthesized on a large scale by a precursor thermal decomposition route. Rod-like Zn1−xCdxC2O4 precursors with 1 μm in average length were firstly fabricated via a solvothermal process. After calcining the Zn1−xCdxC2O4 precursors, the porous Cd-doped ZnO nanorods were obtained. The as-prepared samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), ultraviolet-visible (UV-vis) diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy (XPS). The photocatalytic activity of the as-prepared Cd-doped ZnO nanorods for degradation of organic compounds and the printing and dyeing sewage under the 365 nm of UV light illumination were investigated. The results show that Cd-doped ZnO nanorods have a higher photocatalytic activity than pure ZnO and P25. This enhanced photocatalytic activity is attributed to the Cd doping, which increases the defects in the ZnO nanoparticles and reduces the bandgap width of ZnO. Furthermore, the photodegradation rate does not show an obvious decrease during ten successive cycles, indicating that our Cd-doped ZnO nanorods are very stable.

Graphical abstract: Fabrication of porous Cd-doped ZnO nanorods with enhanced photocatalytic activity and stability

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Article information

DOI
https://doi.org/10.1039/C3CE40798E
Article type
Paper
Submitted
06 May 2013
Accepted
05 Jun 2013
First published
17 Jul 2013

CrystEngComm, 2013,15, 6518-6525

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Fabrication of porous Cd-doped ZnO nanorods with enhanced photocatalytic activity and stability

Y. Peng, S. Qin, W. Wang and A. Xu, CrystEngComm, 2013, 15, 6518 DOI: 10.1039/C3CE40798E

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