Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (10): 3160.doi: 10.7503/cjcu20210365

• Physical Chemistry • Previous Articles     Next Articles

Synthesis of ZnIn2S4/g-C3N4 Nanocomposites with Efficient Photocatalytic H2 Generation Activity by a Simple Hydrothermal Method

SUN Yaguang, ZHANG Hanyan, MING Tao, XU Baotong, GAO Yu, DING Fu, XU Zhenhe()   

  1. Key Laboratory of Inorgnic Molecule?based Chemistry of Liaoning Province,Shenyang University of Chemical Technology,Shenyang 110142,China
  • Received:2021-05-26 Online:2021-10-10 Published:2021-10-10
  • Contact: XU Zhenhe E-mail:xuzh056@163.com
  • Supported by:
    the National Natural Science Foundation of China(51402198);the Liaoning Revitalization Talents Program, China(XLYC2007166)

Abstract:

ZnIn2S4/g-C3N4 composites were prepared by a simple hydrothermal method and characterized by means of X-ray diffraction(XRD), Fourier transforms infrared spectroscopy(FTIR), UV-Vis diffuse reflectance spectroscopy(UV-Vis DRS), transmission electron microscopy(TEM), and fluorescence spectroscopy(PL). The results show that when the loading capacity of ZnIn2S4 is 20%(mass fraction), the composite shows the best performance of photocatalytic hydrogen production, and the rate of hydrogen production can reach 637.08 μmol ·g-1·h-1, which is 4 times and 37 times of pure ZnIn2S4 and pure g-C3N4, respectively. The reason is that ZnIn2S4/g-C3N4 has a tight heterojunction interface, which improves the energy band matching and interfacial charge transfer of the components, thus effectively enhancing the separation and transport of charge carriers, and improving the photocatalytic performance.

Key words: Photocatalytic hydrogen evolution, g-C3N4, ZnIn2S4

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