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MoO3-C3N4 Photocatalysts with High Performance for Degradation of Methyl Orange under Visible Light |
Author Name | Affiliation | E-mail | MA Ling-Juan | School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China | malingjuan@qfnu.edu.cn | HOU Meng-Ning | School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China | | MA Hong-Bin | School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China | | CAO Zhen | School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China | | XUE Zhen | School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China | | LU Yue-Ru | School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China | |
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Abstract: High performance MoO3-C3N4 photocatalysts were prepared by impregnation method with (NH4)6Mo7O24·4H2O and C3N4 as precursors. The MoO3-C3N4 photocatalysts were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), high resolution transmission electron microscopy (HRTEM) and nitrogen physisorption isotherm. And methyl orange (MO) degradation was chosen to test the photocatalytic performance of MoO3-C3N4. It was found that all MoO3-C3N4 samples showed very high surface area, exhibited high photocatalytic activity for MO degradation under visible light irradiation and the content of MoO3 affected the photocatalytic activity. The rate constant of 1.60%(w/w) MoO3-C3N4 was 50 times higher than that of pure C3N4. The enhancement of photocatalytic activity over the heterojunction catalyst could be directly attributed to the Z-scheme photo-generated charge carrier transfer process, which contributes to suppressed recombination rate of photogenerated electron-hole pairs and prolonged lifetime of charge carriers caused by hybridization of MoO3. |
Keywords: MoO3-C3N4 C3N4 photocatalysis methyl orange photodegradation |
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MA Ling-Juan,HOU Meng-Ning,MA Hong-Bin,CAO Zhen,XUE Zhen,LU Yue-Ru.MoO3-C3N4 Photocatalysts with High Performance for Degradation of Methyl Orange under Visible Light[J].Chinese Journal of Inorganic Chemistry,2018,34(10):1899-1909. |
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