TiO_2纳米管的制备及光催化性能研究

Preparation and photocatalysis property of TiO_2 nanotube

以氟化铵水溶液为电解质,采用阳极氧化法,在钛片基体上制备出TiO2纳米管阵列。用FESEM、XRD等测试方法对样品进行表征,采用UV-1800型紫外-可见分光光度计检测TiO2纳米管对甲基橙的光催化性能。结果表明,氧化电压为50V,氧化时间为10h,煅烧温度为500℃时得到的TiO2纳米管对甲基橙的降解效果最好。

Using NH4F as aqueous solution,TiO2 nanotubes arrays were prepared on the surface of titanium sheet by the method of anodic oxidation.TiO2 nanotubes were characterized by FESEM and XRD.UV-1800 ultraviolet and visible spectrophotometer was employed to investigate the photocatalytic property of nanotube on methyl orange,which was used as the analogue pollutant.The result revealed that TiO2 nanotube was effective on the degradation of methyl orange under the condition that oxidation potential was 50 V,oxidation time was 10 h and calcination temperature was 500℃.