摘要
采用溶胶-凝胶法在玻璃上制备了锐钛矿型TiO_2和过渡金属铁、锌离子掺杂的TiO_2薄膜,并通过XRD、XPS、AFM表征了合成的薄膜。结果表明铁和锌离子掺入后,TiO_2薄膜变的更加致密。铁离子和锌离子分别以Fe_2O_3和ZnO的形式存在,在紫外光照射下,TiO_2薄膜表现明显的亲水性,金属离子掺杂的TiO_2薄膜,亲水性能明显增强,铁离子掺入对光催化降解甲基橙有一定的抑制作用;少量的锌离子掺入对光催化降解甲基橙有促进作用,锌离子掺入量增大后,效果并不明显。
Transparent TiO2 thin film and Fe2O3/ TiO2 and ZnO/ TiO2 thin films were prepared by sol-gel methods on the soda lime glass substrates. The results of AFM show that the addition of Fe and Zn ions can suppress the grain growth of TiO2 thin films. The changes of the hydrophilicity of the films under the UV illumination were investigated. The pure TiO2 thin film can be entirely wetted by water after UV illumination for 5h and shows good hydrophilicity. The hydrophilicity. of TiO2 thin films increases with increase in Fe/Zn ions doped. The photocatalytic activities of TiO2 films in photodegradation of methylene orange solution decrease with increase in Fe ions doped but increase with increase in small amount of Zn ions doped.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
2003年第3期695-699,共5页
Journal of Inorganic Materials
