Preparation of multiple-doped TiO2 nanotube arrays with nitrogen, carbon and nickel with enhanced visible light photoelectrochemical activity via single-step anodization

2015 ◽  
Vol 40 (36) ◽  
pp. 12239-12252 ◽  
Author(s):  
Majid Mollavali ◽  
Cavus Falamaki ◽  
Sohrab Rohani
Keyword(s):  
Visible Light ◽  
Single Step ◽  
Tio2 Nanotube Arrays ◽  
Tio2 Nanotube ◽  
Nanotube Arrays ◽  
Photoelectrochemical Activity ◽  
Doped Tio2

Characteristics of N-doped TiO2 nanotube arrays by N2-plasma for visible light-driven photocatalysis

2011 ◽  
Vol 509 (41) ◽  
pp. 9970-9976 ◽  
Author(s):  
Xu Liu ◽  
Zhongqing Liu ◽  
Jian Zheng ◽  
Xin Yan ◽  
Dandan Li ◽  
...  
Keyword(s):  
Visible Light ◽  
Tio2 Nanotube Arrays ◽  
Tio2 Nanotube ◽  
Nanotube Arrays ◽  
Doped Tio2 ◽  
Visible Light Driven ◽  
N2 Plasma

scholarly journals Enhanced Photoelectrochemical Properties from Mo-Doped TiO2 Nanotube Arrays Film

Coatings ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 75 ◽  
Author(s):  
Danni Xue ◽  
Jie Luo ◽  
Zhong Li ◽  
Yanlin Yin ◽  
Jie Shen
Keyword(s):  
Magnetron Sputtering ◽  
Visible Light ◽  
Tio2 Nanotube Arrays ◽  
Tio2 Nanotube ◽  
Nanotube Arrays ◽  
Tio2 Nanotube Array ◽  
Photoelectric Conversion ◽  
Nanotube Array ◽  
Doped Tio2 ◽  
Mo Doping

Mo-doped TiO2 nanotube arrays are prepared successfully by a combined method of direct current (DC) magnetron sputtering and anodic oxidation. The doping amount of Mo can be modified by changing the number of molybdenum blocks on the Ti target while a Ti–Mo alloy film is prepared by magnetron sputtering on a metal Ti substrate, following a Mo-doped TiO2 nanotube array grown by anodization. Morphology test shows that the doping of Mo could inhibit the phase transition and growth of crystal of TiO2. X-ray photoelectron spectroscopy (XPS) results show that Mo has successfully been embedded in the TiO2 crystal lattice and mainly exists in the valence states of Mo6+. Mo-doping samples show slightly increased visible light absorption as the red shift of TiO2 absorption edge with the band gap dropping from 3.24 to 3.16 eV with 0.5 at.% Mo doping. The enhanced photocurrent is demonstrated for a 0.5 at.% Mo-doped TiO2 electrode. Through photoelectric performance testing under UV-visible light irradiation, the nanotube array film with a Mo-doped content of 0.5% produced the maximum photocurrent density, which is about four times the undoped TiO2 nanotube array film, exhibiting a considerable photoelectric effect gain. The controllable Mo doping TiO2 nanotube array film prepared by this combining technique is expected as a promising material for efficient applications in photoelectric conversion.

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