Acta Phys. -Chim. Sin. ›› 2015, Vol. 31 ›› Issue (4): 764-770.doi: 10.3866/PKU.WHXB201502042

• CATALYSIS AND SURFACE SCIENCE • Previous Articles     Next Articles

PANI/g-C3N4 Composites Synthesized by Interfacial Polymerization and Their Thermal Stability and Photocatalytic Activity

LI Xian-Hua1, ZHANG Lei-Gang1, WANG Xue-Xue1, YU Qing-Bo2   

  1. 1 School of Mechanical Engineering, Anhui University of Science and Technology, Huainan 232001, Anhui Province, P. R. China;
    2 Department of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, Anhui Province, P. R. China
  • Received:2014-12-29 Revised:2015-02-03 Published:2015-04-03
  • Contact: YU Qing-Bo E-mail:yuqingbo007@163.com
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (21401001) and Anhui Province Key Laboratory of Environment- Friendly Polymer Materials, China.

Abstract:

Polyaniline (PANI) nanorods grown on layered graphitic carbon nitride (g-C3N4) sheets are synthesized by interfacial polymerization. The structure, morphology, and properties of the photocatalysts are characterized by Fourier transform infrared (FTIR), X- ray diffraction (XRD), and UV-visible (UV-Vis) spectroscopies, scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and electrochemical analysis. Photocatalytic degradation of methylene blue is investigated to determine the photoactivity of the catalyst. The results suggest that g-C3N4 possesses good dispersion with an intercalated nanostructure and interfacial adhesion with PANI. In addition, the PANI/g-C3N4 composites retain the advantage of high thermal stability resident with g-C3N4. This is ascribed to a physical barrier effect on the emanation of degradation products and inhibited polymer motion. The resulting composites also show more intensive photocatalytic activity than does g-C3N4.

Key words: Thermal stability, PANI/g-C3N4, Photocatalytic activity

MSC2000: 

  • O643