光催化
傅里叶变换红外光谱
石墨氮化碳
响应面法
扫描电子显微镜
核化学
材料科学
动力学
漫反射红外傅里叶变换
分光光度法
降级(电信)
光谱学
分析化学(期刊)
辐照
纳米颗粒
化学
化学工程
催化作用
纳米技术
色谱法
有机化学
复合材料
核物理学
电信
计算机科学
量子力学
工程类
物理
作者
Soufiane Hmamouchi,Ahmed El Yacoubi,Mounir El Hezzat,Brahim Sallek,Brahim Chafik El Idrissi
标识
DOI:10.1016/j.diamond.2023.109986
摘要
In the present paper, graphitic carbon nitride (g-C3N4) was prepared using a conventional hydrothermal process. Several characterization methods were applied to analyze the resulting g-C3N4 sample, such as: X-ray diffraction (XRD), ultraviolet-visible (UV–Vis) spectrophotometry, attenuated total reflectance -Fourier-transform infrared (ATR-FTIR) spectroscopy and scanning electron microscopy (SEM) equipped with energy-dispersive X-ray spectroscopy (EDS). The pollutant selected to measure the g-C3N4 photocatalytic performance was methylene blue (MB). Using Response Surface Methodology (RSM), the pH solution effects, photocatalyst dose (mg/L), and irradiation period (min) were examined and adjusted. The optimal conditions, which included 1.3 g/L of g-C3N4 photocatalyst, solution pH = 10.83, and irradiation time = 119.3 min, resulted in a degradation efficiency of 86.58 %. The principal active species involved in photocatalytic degradation have been identified and a potential mechanism has also been provided. Additionally, the degradation kinetics were monitored and obtained to follow pseudo-second order kinetics.
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