日韩av大片在线观看欧美成人不卡|午夜先锋看片|中国女人18毛片水多|免费xx高潮喷水|国产大片美女av|丰满老熟妇好大bbbbbbbbbbb|人妻上司四区|japanese人妻少妇乱中文|少妇做爰喷水高潮受不了|美女人妻被颜射的视频,亚洲国产精品久久艾草一,俄罗斯6一一11萝裸体自慰,午夜三级理论在线观看无码

 

作者： Jiaguo Yu1,3 and Minghua Zhou1,2

1 State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, People's Republic of China 

2 Staff Room of Chemistry, Yunyang Medical College, Shiyan 442000, Hubei, People's Republic of China 

3 Author to whom any correspondence should be addressed

 

摘要： Titanate nanotube films are fabricated on F-doped SnO2-coated glass substrates via an electrophoretic deposition method using hydrothermally prepared titanate nanotubes as precursors. The effects of calcination temperature on the microstructures and photoactivity of as-prepared titanate nanotube films are investigated and discussed. The results indicate that the intercalated sodium ions (Na+) in the as-prepared titanate nanotubes are easily removed during the electrophoretic deposition. The phase transformation of titanate to anatase and diffusion of Na+ ions from glass substrates into films occur at 400 °C. With increasing calcination temperature, the crystallization of anatase enhances and sodium content in the films increases. At 500 °C, the tubular structure still holds and the films show the highest photocatalytic activity probably due to their good crystallization, large specific surface areas and tubular structures.