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| Synthesis and Visible Light Photocatalytic Performance of MoS2/g-C3N4 Composites |
| Author Name | Affiliation | E-mail | | XU Meng-Qiu | School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China | | | CHAI Bo | School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China | willycb@163.com | | YAN Jun-Tao | School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China | | | WANG Hai-Bo | School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China | | | REN Zhan-Dong | School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China | |
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| Abstract: The few layered MoS2 was obtained by liquid-phase ultrasonic exfoliation in the N-methyl-2-pyrrolidone solution, and then coupled with the graphitic carbon nitride (g-C3N4) to construct MoS2/g-C3N4 composites. The as-prepared composites were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, UV-vis diffuse reflectance absorption spectroscopy (DRS) and Photoluminescence (PL) spectra. The photocatalytic activities of composites were evaluated by the degradation of Rhodamine B (RhB) under visible light irradiation. The experimental results showed that a small amount of MoS2 in the composites could remarkably improve the photocatalytic activity, and 1%(w/w) MoS2/g-C3N4 composite exhibited the best photocatalytic performance. The significantly enhanced photocatalytic activity was probably ascribed to the matched energy band structures between MoS2 and g-C3N4, increasing the interfacial charge transfer and thus inhibiting the recombination of photo-generated electron-holes pairs. |
| Keywords: MoS2/g-C3N4 composites photocatalysis degradation rhodamine B |
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| XU Meng-Qiu,CHAI Bo,YAN Jun-Tao,WANG Hai-Bo,REN Zhan-Dong.Synthesis and Visible Light Photocatalytic Performance of MoS2/g-C3N4 Composites[J].Chinese Journal of Inorganic Chemistry,2017,33(3):389-395. |
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