The Microwave Synthesis and Photocatalytic Activity of ZnO/TiO2 Nanocomposites

Gang Cheng Zhou; Quan Xin Zhu; Wan Qing Xiong; Jian Lei; Wen Xiang Ye; Xue Hong Liao

doi:10.4028/www.scientific.net/AMR.651.187

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 651The Microwave Synthesis and Photocatalytic...

The Microwave Synthesis and Photocatalytic Activity of ZnO/TiO₂ Nanocomposites

Abstract:

ZnO/TiO2 nanocomposites were prepared by mixing of ultrasonic vibration and sintering at 500°C for 2 h initial nano-ZnO and nano-TiO₂ which were synthesized by a microwave irradiation heating technique from an aqueous solution of Zn(Ac)₂•₂H₂O, Ti(SO₄)₂, respectively. The samples were characterized by the techniques of X-ray diffraction (XRD) and transmission electron microscopy (TEM). And we have also carried on research to the photocatalytic activity of the as-prepared ZnO/TiO₂ nanocomposites by photo-degrading methyl orange. The result indicates that the as-prepared sample is a good photocatalyst. When m (TiO₂) /m (ZnO) ratio was equal to 4, the photocatalytic activity of the nanocomposites is best. The result shows that the degradation ratio of the methyl orange (2mg/L) has reached 93% within 80 min

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Periodical:

Advanced Materials Research (Volume 651)

Pages:

187-192

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.651.187

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Online since:

January 2013

Authors:

Gang Cheng Zhou, Quan Xin Zhu, Wan Qing Xiong, Jian Lei, Wen Xiang Ye, Xue Hong Liao

Keywords:

Degradation, Methyl Orange, Microwave Synthesis, Photocatalysis, ZnO/TiO₂ Nanocomposites

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