论文部分内容阅读
微波辅助液相法制备了g-C3N4–Ce O2/凹凸棒石(ATP)复合光催化材料。采用X射线衍射仪、Fourier变换红外光谱仪、紫外-可见漫反射光谱仪、透射电子显微镜等对样品微观结构进行表征,以亚甲基蓝(MB)为目标降解物考察g-C3N4–Ce O2/ATP复合材料在可见光辐射下的催化活性,研究Ce O2/g-C3N4质量比对光催化剂活性的影响。结果表明:ATP与Ce O2和g-C3N4形成三维网络结构,能有效地增加复合光催化剂的表面积,在空间上形成多渠道的电子传递通道,促进光生载流子的分离。当Ce O2/g-C3N4质量比为3/10时,g-C3N4–Ce O2/ATP复合材料对MB的降解率可达92%。
G-C3N4-Ce O2 / attapulgite (ATP) composite photocatalyst was prepared by microwave assisted liquid-phase method. The microstructure of the samples was characterized by X-ray diffraction, Fourier transform infrared spectroscopy, UV-visible diffuse reflectance spectroscopy and transmission electron microscopy. The degradation of g-C3N4-Ce O2 / Visible light irradiation of the catalytic activity of Ce O2 / g-C3N4 mass ratio of photocatalytic activity. The results show that ATP and Ce O2 and g-C3N4 form a three-dimensional network structure, which can effectively increase the surface area of the composite photocatalyst and spatially form multi-channel electron transport channels to promote the separation of photo-generated carriers. When the mass ratio of Ce O2 / g-C3N4 is 3/10, the degradation rate of MB for g-C3N4-CeO2 / ATP composites can reach 92%.