Bao-long Xu,Chang-xin Liu,Hai-yan Sun,Yu-rong Zhong.Fabrication and photo-catalytic properties of pure and cation doped TiO2 nanotube arrays[J].Optoelectronics Letters,2014,10(2):84-87 Fabrication and photo-catalytic properties of pure and cation doped TiO2 nanotube arrays Author Name Affiliation E-mail Bao-long Xu  School of Opto-Electronic Information Science and Technology, Yantai University, Yantai, 264005, China  xubl9796@sina.com  Chang-xin Liu  School of Opto-Electronic Information Science and Technology, Yantai University, Yantai, 264005, China    Hai-yan Sun  School of Environmental and Materials Engineering, Yantai University, Yantai, 264005, China    Yu-rong Zhong  School of Opto-Electronic Information Science and Technology, Yantai University, Yantai, 264005, China    Abstract:       The highly ordered and vertically oriented pure TiO2 nanotube arrays (TONTAs) are synthesized by anodic oxidation of titanium foils in fluoride-based electrolytes under different temperatures and voltages. Then TONTAs are treated at different temperatures. X-ray diffraction (XRD) patterns show that its structure is anatase at 500 °C with the temperature increasing to 700 °C, the most of anatase will transform to rutile, the nanotube arrays form granular titanium oxide, while at 900 °C, anatase will transform to rutile completely. The experimental results of photocatalytic degradation of methylene blue solution show that the cobalt-manganese co-doped TONTAs have good photocatalytic degradation efficiency. Hits: 3646 Download times: 0 This work has been supported by the National Natural Science Foundation of China （No. 11105117）, Province Natural Science Foundation of Shandong （No.Y2004A 11） and Yantai University Postdoctoral Foundation （No.WL03B 15）. View Full Text    Download reader