中国物理B ›› 2020, Vol. 29 ›› Issue (5): 57801-057801.doi: 10.1088/1674-1056/ab7e95
• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇 下一篇
Nguyen Manh Hung, Le Thi Mai Oanh, Lam Thi Hang, Pham Do Chung, Pham Thi Duyen, Dao Viet Thang, Nguyen Van Minh
Nguyen Manh Hung1,4, Le Thi Mai Oanh1,2, Lam Thi Hang1,3, Pham Do Chung2, Pham Thi Duyen1,5, Dao Viet Thang1,4, Nguyen Van Minh1,2
摘要: Effect of heating time on the structural, morphology, optical, and photocatalytic properties of graphitic carbon nitride (g-C3N4) nanosheets prepared at 550℃ in Ar atmosphere is studied. The investigations are carried out by using x-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), UV-vis absorption, and photoluminescence (PL). At a heating temperature of 550℃, g-C3N4 nanocrystals are formed after 0.5 h and become more orderly as the heating time increases. The surface area of the g-C3N4 nanosheets significantly increases as the preparation time increases. The g-C3N4 prepared in 2.5 h shows the highest photocatalytic performance, decomposing completely 10 ppm RhB solution under xenon lamp irradiation for 2.0 h.
中图分类号: (Semiconductor compounds)