Increased photocatalytic activity of tube-brush-like ZnO nanostructures fabricated by using PVP nanofibers as templates

•We obtained the tube-brush-like ZnO nanostructures.•We used polyvinylpyrrolidone (PVP) nanofibers used as templates by ALD and hydrothermal method to prepare tube-brush-like ZnO nanostructure.•The tube-brush-like ZnO nanostructures showed higher photocatalytic activity, the degradation of Rhodamine...

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Bibliographic Details
Published in:Applied surface science 2014-11, Vol.319, p.216-220
Main Authors: Chen, Xinying, Zhai, Yingjiao, Li, Jinhua, Fang, Xuan, Fang, Fang, Chu, Xueying, Wei, Zhipeng, Wang, Xiaohua
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Electrospinning
Exact sciences and technology
Morphology
Nanofibers
Nanostructure
Photocatalysis
Photocatalytic activity
Physics
Polyvinylpyrrolidone (PVP)
Rhodamine B (RhB)
Scanning electron microscopy
Surface chemistry
Tube-brush-like ZnO nanostructures
Zinc oxide
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Summary:•We obtained the tube-brush-like ZnO nanostructures.•We used polyvinylpyrrolidone (PVP) nanofibers used as templates by ALD and hydrothermal method to prepare tube-brush-like ZnO nanostructure.•The tube-brush-like ZnO nanostructures showed higher photocatalytic activity, the degradation of Rhodamine B (RhB) was up to 98% after 2h of irradiation. The tube-brush-like ZnO nanostructures were synthesized by hydrothermal method using electrospinning polyvinylpyrrolidone (PVP) nanofibers as templates. The photocatalytic activity of as-grown samples was investigated by photo-degradation of Rhodamine B (RhB). The products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), UV/visible absorption spectroscopy (UV–vis) and photoluminescence (PL) spectroscopy. It was found that the morphologies of the prepared ZnO were tube-brush-like nanostructures. With the grown time increasing, the crystal and the optical properties were improved. In the photocatalytic experiment, the tube-brush-like ZnO nanostructures photocatalytic activity was enhanced the degradation of RhB was up to 98% after 2h of irradiation. The tube-brush-like ZnO nanostructures showed higher photocatalytic activity because of the special surface morphology.
ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2014.07.148