【摘 要】
：
Effect of heating time on the structural, morphology, optical, and photocatalytic properties of graphitic carbon nitride(g-C3N4) nanosheets prepared at 550 ℃ i
【机 构】
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Center for Nano Science and Technology, Hanoi National University of Education, 136 Xuan Thuy Road,
论文部分内容阅读
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 absorp-tion, and photoluminescence (PL). At a heating temperature of 550 ?C, 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.
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