TiO2-C复合材料的合成与光催化降解有机污染物的性能研究

The Synthesis of TiO2-C Composite Material and Study on Its Photocatalytic Degradation Properties for Organic Pollutants

以葡萄糖为碳源,分别制备了不同含碳量的TiO2-C复合材料。利用X射线衍射、扫描电子显微镜、N2吸附-脱附等对材料的形貌进行了表征。并以水溶液中甲基橙为目标污染物,对复合材料的吸附性能、光催化性能进行了评估。研究表明,在紫外光照5.5h后,甲基橙的降解率可达83%,说明TiO2-C是一种稳定、廉价、性能优异的复合材料,在光催化降解有机污染物方面有潜在的应用前景。

The TiO2-C composites with different carbon contents are prepared with the glucose as the carbon source. The morphology of the mate-rial is characterized by means of X-ray diffraction, scanning electron microscopy, N2 adsorption-desorption. The adsorption and photocatalytic properties of the composite are evaluated by the degradation of methyl orange in aqueous solution. The degradation rate of methyl orange is up to 83% after the UV-irradiation for 5.5 h. The results show that the composite material is stable and cheap and possesses excellent performance. Therefore, it will be a potential catalyst for the photocatalytic degradation of organic pollutants.