Abstract: Graphite-like carbon nitride(g-C3N4) with lamellar structure was prepared using melamine as raw material via a facile thermal polymerization method at different temperatures in air and argon atmosphere. The effects of melamine pyrolysis in different atmospheres and the thermal stability of g-C3N4 products were studied by TG-DSC, X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM), fourier transform infrared spectroscopy (FT-IR) and Raman. The results showed that the pure phase g-C3N4 with high crystallinity and lamellar structure could be synthesized via the pretreated melamine by thermal polymerization method.In argon atmosphere, g-C3N4 with smooth and compact surface is more favorable than air atmosphere. g-C3N4 with lamellar structure could be observed at 500 ℃, and it could still exist stably at 700 ℃. The thermal stability of g-C3N4 synthesized in argon atmosphere was better than g-C3N4 in air atmosphere.
姜鹏程, 王周福, 王玺堂, 刘浩, 马妍. 不同气氛下类石墨相氮化碳的合成及热稳定性能[J]. 材料导报, 2021, 35(6): 6048-6053.
JIANG Pengcheng, WANG Zhoufu, WANG Xitang, LIU Hao, MA Yan. Synthesis of Graphite-like Carbon Nitride in Different Atmospheres and Its Thermal Stability. Materials Reports, 2021, 35(6): 6048-6053.
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