TiO2/ZnO异相结纳米纤维的光催化性能研究

Photocatalytic Properties of TiO2/ZnO Heterojunction Nanofibers

针对TiO 2/ZnO异相结纳米纤维的光催化性能受到煅烧温度的影响,以增强TiO 2/ZnO异相结纳米纤维的光催化性能为目的,提出了TiO 2/ZnO异相结纳米纤维的光催化性能研究。采用温度控制手段制备不同温度和浓度的TiO 2/ZnO异相结纳米纤维,利用电子显微镜、X射线衍射仪及共焦拉曼光谱仪,实现了TiO 2/ZnO异相结纳米纤维的表征,在MB光降解模型中研究了TiO 2/ZnO异相结纳米纤维的光催化性能。结果显示,煅烧温度为500℃、n(Ti):n(W)=4∶1时的TiO 2/ZnO异相结纳米纤维具有更高的光催化性能。

In view of the influence of calcination temperature on the photocatalytic performance of TiO 2/ZnO heterojunction nanofibers,aiming at enhancing the photocatalytic performance of TiO 2/ZnO heterojunction nanofibers,a study on the photocatalytic performance of TiO 2/ZnO heterojunction nanofibers was proposed.TiO 2/ZnO heterojunction nanofibers with different temperature and concentration were prepared by means of temperature control.The characterization of TiO 2/ZnO heterojunction nanofibers was realized by means of electron microscope,X-ray diffraction and confocal Raman spectrometer.The photocatalytic performance of TiO 2/ZnO heterojunction nanofibers was studied in MB photodegradation model.The results show that the TiO 2/ZnO heterojunction nanofibers with calcination temperature of 500℃and n(Ti):n(W)=4:1 have higher photocatalytic performance.