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MoO3-C3N4 Photocatalysts with High Performance for Degradation of Methyl Orange under Visible Light
Author NameAffiliationE-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  
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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Chinese Journal of Inorganic Chemistry