光催化
材料科学
活性炭
扫描电子显微镜
傅里叶变换红外光谱
吸附
降级(电信)
可见光谱
甲苯
化学工程
光降解
核化学
催化作用
污染物
复合材料
有机化学
化学
光电子学
电信
工程类
计算机科学
作者
Wenrui Zhang,Yonghui Wang,Meilu Hao,Huawei Zhang,Peng Liang
出处
期刊:NANO
[World Scientific]
日期:2021-09-01
卷期号:16 (10)
被引量:3
标识
DOI:10.1142/s1793292021300097
摘要
Ag-modified TiO 2 on activated carbon fibers (ACF) was synthesized and successfully used for the photocatalytic degradation of organic pollutants in this work. The physical properties of the materials were characterized using various methods such as X-ray diffraction, scanning electron microscope, Brunauer–Emmett–Teller, Fourier transform infrared, UV–Vis, electrochemical impedance spectroscopy and reusability tests. Besides, the effects of reaction parameters on photodegradation such as silver loading, light source, organic pollutant species and initial pollutant concentration were investigated. The results showed that Ag significantly increased the number of surface adsorption sites, improved the electron transmission rate and suppressed the complexation of e − and h[Formula: see text]. Under visible light, 1.5-Ag-TiO 2 /ACF [Formula: see text] revealed the best catalytic activity and reusability for dye removal and toluene adsorption. Based on the experimental results, a possible photocatalytic mechanism of Ag-TiO 2 /ACF was proposed. This study will provide a theoretical basis for the application of Ag-TiO 2 /ACF photocatalyst in the field of organic pollutants treatment.
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