Synthesis of chiral mesostructured titanium dioxide films

2020 ◽  
Vol 56 (35) ◽  
pp. 4848-4851
Author(s):  
Fenping Zhang ◽  
Jing Ai ◽  
Kun Ding ◽  
Yingying Duan ◽  
Lu Han ◽  
...  

Chiral mesostructured TiO2 films (CMTFs) were synthesized by a hydrothermal method using l/d-mannitol as the symmetry-breaking agent and titanium foil as both the substrate and inorganic precursor.

2020 ◽  
Author(s):  
A. A. Valeeva ◽  
I. B. Dorosheva ◽  
I. A. Weinstein ◽  
A. A. Rempel ◽  
E. A. Kozlova

In the present work we have synthesized nanotubular TiO2 film with a nonstoichiometric layer in the vicinity of titanium foil by anodization during 120 min. The catalytic activity of nanotubular titanium dioxide films formed during the oxidation of acetone to carbon dioxide under the action of visible light with a wavelength of 450 nm was found to be approximately 2 times higher compared to standard titanium dioxide (Degussa P25). Such a pronounced enhancement of activity may be attributed to a more efficient absorption of visible light by the films due to narrowing of the optical gap because of difference in the nonstoichiometry of titanium dioxide near the interface between nanotubular film and the titanium foil substrate. Keywords: photocatalysis, nonstoichiometric titanium dioxide, purification of water


LWT ◽  
2014 ◽  
Vol 57 (2) ◽  
pp. 548-555 ◽  
Author(s):  
Zhe Wang ◽  
Ning Zhang ◽  
Huai-yu Wang ◽  
Si-yao Sui ◽  
Xiu-xiu Sun ◽  
...  

Author(s):  
Mitsuo Hara ◽  
Ryota Oguri ◽  
Sarkar Shingo ◽  
Shusaku Nagano ◽  
Takahiro Seki

2014 ◽  
Vol 116 ◽  
pp. 182-186 ◽  
Author(s):  
Juan G. Castaño ◽  
Esteban Velilla ◽  
Lorena Correa ◽  
Maryory Gómez ◽  
Félix Echeverría

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