摘要
采用液相沉积法(LPD),以阳极氧化铝(AAO)为模板,原位合成高度有序的TiO_2纳米管薄膜材料.实验结果表明,经过400℃热处理后,制备的TiO_2纳米管为锐钛矿相,长度达5μm,管外径为150nm左右,管壁厚为25nm左右.热处理后的TiO_2薄膜具有良好的光催化降解甲基蓝的性能,即经过120min卤灯照射后,甲基蓝被完全降解.
The highly ordered aligned titania nanotubes thin films were successfully prepared by liquid phase deposition（LPD）method.Anodic aluminum oxide（AAO）used as starting material was immersed in an aqueous ammonium hexafluorotitanate（（NH4）2TiF6）solution.The results show that anatase titania can be obtained after the thin films are annealed at 400℃for 4h.The outside diameter of the titania nanotube is about 150nm and the wall thickness of the nanotubes is approximately 25nm. Moreover,the thickness of titania nanotube array is about 5μm.The annealed TiO2 thin films have good photocatalytic activity on the degradation of methyl blue,i.e.,methyl blue can be entirely degradated after 120nm mercury arc irradiation.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
2008年第6期1259-1262,共4页
Journal of Inorganic Materials
基金
教育部新世纪优秀人才支持计划(97009011200702，52009011200702)
北京市教育委员会科技发展计划(KM200610005010)
关键词
氧化钛纳米管
液相沉积
光催化
甲基蓝降解
TiO2 nanotubes
liquid phase deposition
photocatalysis
methyl blue degradation
