石墨相氮化碳的制备及其对柠檬黄的光催化降解

Preparation of Graphitic Carbon Nitride and Its Photocatalytic Degradation of Lemon Yellow

以三聚氰胺为原料,采用高温缩聚法制备了石墨相氮化碳(g-C3N4)。使用X射线衍射(XRD)、傅里叶变换红外光谱(FT-IR)、扫描电子显微镜(SEM)、紫外漫反射光谱(UV-visDRS)表征了g-C3N4的物相结构、元素组分、微观形态及对光的利用情况。通过g-C3N4对柠檬黄(LY)染料进行光催化降解来评估其的光催化活性。光催化降解实验表明,g-C3N4对柠檬黄(LY)染料的降解率在50 min达到了90.7%。

Graphitic carbon nitride(g-C 3N 4)was prepared by high temperature polycondensation using melamine as raw material.Diffuse reflectance spectroscopy(UV-vis DRS),X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FT-IR),scanning electron microscopy(SEM),and ultraviolet were used to characterize the phase structure,elemental composition,microscopic morphology and utilization of light of g-C3N4.Photocatalytic degradation of Lemon Yellow(LY)dye by g-C3N4 were used to evaluate the evaluation results.Photocatalytic degradation experiments showed that the degradation rate of LY dye by g-C3N4 reached over 90.3%in 50 min.