以TiO2纳米粒子为载体,采用紫外光原位还原法制备了Pt/TiO2纳米光催化剂,并用TEM和EDS对其进行了表征。结果表明:纳米Pt负载到TiO2纳米粒子表面;Pt/TiO2的光催化活性是未处理纳米TiO2光催化活性的3~4倍。
The Pt-loaded TiOe nanoparticles (Pt/TiO2) are prepared by a UV-light in situ photoreduction method. The sample is characterized by TEM and EDS, and the result shows that Pt nanoparticles load on the surface of TiO2 finely. The photocatalytie activity of the sample is proved to be 3--4 times higher than that of TiO2 nanoparticles.