Citation: ZHAO Xiao-Hua, SU Shuai, WU Guang-Li, LOU Xiang-Dong, QIN Zhe, ZHOU Jian-Guo. Preparation and Sunlight Photocatalytic Performance of Flower-like ZnO@ carbon Sphere Core-Shell Structure[J]. Chinese Journal of Inorganic Chemistry, ;2017, 33(2): 276-284. doi: 10.11862/CJIC.2017.021 shu

Preparation and Sunlight Photocatalytic Performance of Flower-like ZnO@ carbon Sphere Core-Shell Structure

1.
School of Environment, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control(Ministry of Education), Henan Key Laboratory for Environmental Pollution Control, Henan Engineering Laboratory of Environmental Functional Materials and Pollution Control, Henan Normal University, Xinxiang, Henan 453007, China
2.
School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China

Corresponding author: ZHOU Jian-Guo, zhoujgwj@163.com
Received Date: 17 May 2016
Revised Date: 14 November 2016

Figures(9)

A series of nanosheets assembled flower-like core-shell ZnO@carbon sphere (ZnO@C)composites were prepared by hydrothermal method. The as-prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscope (XPS), Fourier transform infrared spectroscopy (FTIR), UV-Vis diffuse reflectance spectroscope (UV-Vis DRS), photoluminescence (PL)and N₂ adsorption-desorption determination. The results showed that carbon spheres were coated by ZnO nanosheets forming core-shell structure. The presence of carbon spheres in ZnO@C composites not only improved the absorption of ZnO in the visible light region but also inhibited the recombination of photogenerated electrons and holes. Under simulated sunlight irradiation, the photodegradation of Reactive dye GR black and metronidazole by samples were tested, the results showed that all ZnO@C composites exhibited enhanced photocatalytic performance compared to pure ZnO. Especially, the ZnO@C-2 sample showed the best photocatalytic performance, the rate constant of which was about 4.2 times that of pure ZnO for GR black degradation and 2.1 times for metronidazole degradation, respectively.
- ZnO,
- carbon sphere,
- core-shell structure,
- nanosheets assembled flower-like morphology,
- sunlight photocatalysis
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1.
沈阳化工大学材料科学与工程学院沈阳 110142