Anodic Oxidation of TC4 Substrate to Synthesize Ce-Doped TiO2 Nanotube Arrays with Enhanced Photocatalytic Performance

2021 ◽  
Author(s):  
Zhe Gong ◽  
Xueqin Li ◽  
Zhicheng Zhang ◽  
Yiheng Liu ◽  
Haiping Song ◽  
...  
Keyword(s):  
Anodic Oxidation ◽  
Photocatalytic Performance ◽  
Tio2 Nanotube Arrays ◽  
Tio2 Nanotube ◽  
Nanotube Arrays ◽  
Doped Tio2

scholarly journals Enhanced Photocatalytic Performance of Nitrogen-Doped TiO2 Nanotube Arrays Using a Simple Annealing Process

Micromachines ◽  
2018 ◽  
Vol 9 (12) ◽  
pp. 618 ◽  
Author(s):  
Phuoc Le ◽  
Le Hieu ◽  
Tu-Ngoc Lam ◽  
Nguyen Hang ◽  
Nguyen Truong ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Photocatalytic Performance ◽  
Synergistic Effects ◽  
Annealing Process ◽  
Tio2 Nanotube Arrays ◽  
Tio2 Nanotube ◽  
Nanotube Arrays ◽  
Doped Tio2 ◽  
Nitrogen Doped ◽  
N Doping

Nitrogen-doped TiO2 nanotube arrays (N-TNAs) were successfully fabricated by a simple thermal annealing process in ambient N2 gas at 450 °C for 3 h. TNAs with modified morphologies were prepared by a two-step anodization using an aqueous NH4F/ethylene glycol solution. The N-doping concentration (0–9.47 at %) can be varied by controlling N2 gas flow rates between 0 and 500 cc/min during the annealing process. Photocatalytic performance of as-prepared TNAs and N-TNAs was studied by monitoring the methylene blue degradation under visible light (λ ≥ 400 nm) illumination at 120 mW·cm−2. N-TNAs exhibited appreciably enhanced photocatalytic activity as compared to TNAs. The reaction rate constant for N-TNAs (9.47 at % N) reached 0.26 h−1, which was a 125% improvement over that of TNAs (0.115 h−1). The significant enhanced photocatalytic activity of N-TNAs over TNAs is attributed to the synergistic effects of (1) a reduced band gap associated with the introduction of N-doping states to serve as carrier reservoir, and (2) a reduced electron‒hole recombination rate.

A general approach to the fabrication of Sn-doped TiO2 nanotube arrays with titanium vacancies for supercapacitors

2021 ◽  
pp. 151175
Author(s):  
Qianqian Liu ◽  
Yan Yang ◽  
Yilin Ni ◽  
Qi Wang ◽  
Huiwen Yu ◽  
...  
Keyword(s):  
Tio2 Nanotube Arrays ◽  
Tio2 Nanotube ◽  
Nanotube Arrays ◽  
Doped Tio2

Surface characterization of TiO2 nanotube arrays produced on Ti6Al4V alloy by anodic oxidation

2021 ◽  
pp. 127903
Author(s):  
Salih Durdu ◽  
Muharrem Sancak ◽  
Emine Yalcin ◽  
Metin Usta ◽  
Eyup Akagunduz ◽  
...  
Keyword(s):  
Anodic Oxidation ◽  
Surface Characterization ◽  
Ti6al4v Alloy ◽  
Tio2 Nanotube Arrays ◽  
Tio2 Nanotube ◽  
Nanotube Arrays

Formation Process of TiO2 Nanotube Arrays Prepared by Anodic Oxidation Method

2013 ◽  
Vol 13 (6) ◽  
pp. 4110-4116 ◽  
Author(s):  
Hongyi Li ◽  
Man Liu ◽  
Hong Wang ◽  
Junshu Wu ◽  
Penglei Su ◽  
...  
Keyword(s):  
Anodic Oxidation ◽  
Formation Process ◽  
Tio2 Nanotube Arrays ◽  
Tio2 Nanotube ◽  
Nanotube Arrays ◽  
Oxidation Method ◽  
Anodic Oxidation Method
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