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Vol. 26 No. 5 (2014): Vol 26 Issue 5

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Enhancing the Photocatalytic Activity of Nickel Ferrite Doped with Graphene

https://doi.org/10.14233/ajchem.2014.17239
Bo Xiao
Jiangsu Key Laboratory of Environmental Functional Materials; College of Chemistry and Bioengineering, Suzhou University of Science and Technology, Suzhou 215009, P.R. China
Shou-Qing Liu
Jiangsu Key Laboratory of Environmental Functional Materials; College of Chemistry and Bioengineering, Suzhou University of Science and Technology, Suzhou 215009, P.R. China; Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education, Zigong 643000, P.R. China*Corresponding author: Tel/Fax: +86 512 69209055; E-mail:

Corresponding Author(s) : Shou-Qing Liu

shouqing_liu@hotmail.com

Asian Journal of Chemistry, Vol. 26 No. 5 (2014): Vol 26 Issue 5

Abstract

Graphene-nickel ferrite (G-NiFe2O4) has been successfully synthesized using graphene, NiSO4·6H2O and FeCl3·6H2O as the raw materials by the hydrothermal method at 180 ºC for 10 h. The as-synthesized sample was characterized by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy and vibrating sample magnetometer at room temperature. The photo-Fenton degradations of methylene blue, rhodamine B and malachite green were conducted in the presence of oxalic acid using G-NiFe2O4 as the photo-Fenton catalyst under visible light irradiation. The results showed that the G-NiFe2O4 catalyst can effectively decompose the organic pollutants under visible light irradiation and the decolorization ratio of methylene blue in the concentration of 20 mg/L reached over 87.8 % in 10 h, whereas the decolorization ratio was only 28.8 % when the NiFe2O4 was utilized as the catalyst under the similar conditions. The decolorization ratio maintained over 70 % after 8 runs via a magnetic field for separation, showing the G-NiFe2O4 catalyst is stable and easily separable for utilization.

Keywords

Graphene Nickel ferrite Doping Fenton catalyst Photocatalysis
Xiao, B., & Liu, S.-Q. (2014). Enhancing the Photocatalytic Activity of Nickel Ferrite Doped with Graphene. Asian Journal of Chemistry, 26(5), 1391–1393. https://doi.org/10.14233/ajchem.2014.17239
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