界面聚合法制备PANI/g-C3N4复合催化剂及其热稳定性和可见光催化性能

doi:10.3866/PKU.WHXB201502042

Abstract

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

LI Xian-Hua, ZHANG Lei-Gang, WANG Xue-Xue, YU Qing-Bo. PANI/g-C₃N₄ Composites Synthesized by Interfacial Polymerization and Their Thermal Stability and Photocatalytic Activity[J]. Acta Phys. -Chim. Sin. 2015, 31(4), 764-770. doi: 10.3866/PKU.WHXB201502042

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

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