中文关键词
Ag3PO4/g-C3N4可见光左氧氟沙星光降解Z型异质结构 英文关键词Ag3PO4/g-C3N4visible lightlevofloxacinphotodegradationZ-scheme mechanism |
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中文摘要 |
采用简单的原位沉淀法合成了可见光驱动型光催化剂Ag3PO4/g-C3N4.利用X-射线衍射(XRD)、傅里叶红外光谱(FT-IR)、扫描电子显微镜(SEM)、X-射线能谱(XPS)以及紫外可见漫反射光谱(UV-Vis DRS)等表征手段对合成的样品进行了表征.与单一的Ag3PO4和g-C3N4相比,Ag3PO4/g-C3N4复合材料对左氧氟沙星表现出了更高的催化效率.根据能带分析和自由基捕获试验,提出了Ag3PO4/g-C3N4复合材料Z型异质结构的作用机制. |
英文摘要 |
The visible light-driven photocatalyst Ag3PO4/g-C3N4 was synthesized by a simple in-situ precipitation method. The synthesized samples were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray photoelectron spectroscopy, and UV-vis diffuse reflectance spectroscopy. Compared with that of single Ag3PO4 and g-C3N4, the Ag3PO4/g-C3N4 composite had a higher catalytic efficiency for levofloxacin. According to the energy band analysis and free radical capture experiment, the mechanism of the Z-type heterostructure of the Ag3PO4/g-C3N4 composite was proposed. |
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