Low-temperature Preparation and Photocatalytic Activity of Eco-friendly Nanocone Forest-like Arrays of ZnO

doi:10.11901/1005.3093.2018.302

Chinese Journal of Materials Research

2018, Vol. 32

Issue (12): 945-950 DOI: 10.11901/1005.3093.2018.302

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Low-temperature Preparation and Photocatalytic Activity of Eco-friendly Nanocone Forest-like Arrays of ZnO

Xiangming FANG^1,², Zhi ZENG², Shiyong GAO²(

), Wenqiang LI², Jinzhong WANG²

1 Department of Physics, Taiyuan University, Taiyuan 030032, China
2 School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

Cite this article:

Xiangming FANG, Zhi ZENG, Shiyong GAO, Wenqiang LI, Jinzhong WANG. Low-temperature Preparation and Photocatalytic Activity of Eco-friendly Nanocone Forest-like Arrays of ZnO. Chinese Journal of Materials Research, 2018, 32(12): 945-950.

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Abstract

Nanocone arrays of ZnO were synthesized on Zn foil via a simple low temperature (60^OC) hydrothermal route. The morphology, structure and composition of the prepared nanocone arrays were characterized by means of scanning electron microscopy, X-ray diffractometer and energy disperse spectroscopy. Results show that the surface of Zn-substrate was fully covered by clustered ZnO-nanocones and standalone ZnO-nanocones, the nanocone arrays of ZnO are of high purity and high degree of crystallinity. The prepared nanocone arrays of ZnO exhibit good photocatalytic performance for aqueous solutions of methyl orange and methylene blue, indicating that the nanocone arrays of ZnO may be a general purpose photocatalyst for the degradation of different dyes. Furthermore, the possible growth and photocatalytic mechanisms of the nanocone arrays of ZnO were also analyzed.

Key words: inorganic non-metallic materials ZnO nanocone hydrothermal photocatalytic activity

Received: 27 April 2018

Fund: Supported by Postdoctoral Science Foundation of Heilongjiang Province (No. LBH-Q16104)

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	Xiangming FANG
	Zhi ZENG
	Shiyong GAO
	Wenqiang LI
	Jinzhong WANG

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https://www.cjmr.org/EN/10.11901/1005.3093.2018.302 OR https://www.cjmr.org/EN/Y2018/V32/I12/945

Fig.1 Low magnification morphology SEM image (a), high magnification morphology SEM image (b), high magnification morphology SEM image at bottom (c) and EDS of ZnO nanocone arrays grown on Zn foil (d)

Fig.2 XRD patterns of ZnO nanocone forest-like arrays (a) and Zn foil (b)

Fig.3 SEM images of the ZnO nanocone prepared with 1 h (a), 3 h (b), 6 h (c) and 9 h (d)

Fig.4 Schematic illustration of the growing process for ZnO nanocone forest-like arrays

Fig.5 Absorption spectra of MO solution (a) and MB solution (b) with ZnO nanocone forest-like arrays

Fig.6 Schematic diagram of (a) reflection between ZnO nanocone (b) photocatalytic mechanism of ZnO nanocone

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