掺镧二氧化钛纳米薄膜杀菌性的研究

Study on the Bactericidal Capability of Lanthanum-doped Nano-TiO_2 Film

介绍了一种掺镧二氧化钛纳米薄膜,它不但在紫外光区具有光催化杀菌作用,而且在可见光区也具有杀菌作用,可以涂于灯具达到保护环境的目的。测量此材料的选出功,证明其在可见光区有催化作用,并由实验证明,在可见光区光照2h可杀死大肠杆菌和金黄色葡萄球菌,而且对人无毒无害。该纳米材料在环境保护中具有很好的应用前景。

This paper introduces lanthanum-doped nano-TiOz film, which has the photocatalysis capability not only in ultraviolet spectrum but also in visible light spectrum. So it can be coated on the lamps and lanterns to protect environment. The surface work function of the material is measured to prove that the film has the photocatalysis capability in visible light spectrum. The film can kill Echerichia coli and Staphylococcus aureus in high concentration under visible light 2 hours later, and it does no harm to people. Therefore the nano material has good application foreground in environmental protection.