Synthesis of nonstoichiometric titanium dioxide in the hydrogen flow

2019 ◽  
Author(s):  
I. B. Dorosheva ◽  
E. V. Adiyak ◽  
A. A. Valeeva ◽  
A. A. Rempel
Keyword(s):  
Titanium Dioxide ◽  
Hydrogen Flow ◽  
Nonstoichiometric Titanium

scholarly journals Nonstoichiometric titanium dioxide nanotubes with enhanced catalytical activity under visible light

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
A. A. Valeeva ◽  
E. A. Kozlova ◽  
A. S. Vokhmintsev ◽  
R. V. Kamalov ◽  
I. B. Dorosheva ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Visible Light ◽  
Titanium Dioxide Nanotubes ◽  
Nonstoichiometric Titanium

Thermal Diffusivity of Nonstoichiometric Titanium Dioxide

1976 ◽  
Vol 59 (1-2) ◽  
pp. 84-84 ◽  
Author(s):  
H.J. SIEBENECK ◽  
W. P. MINNEAR ◽  
R. C. BRADT ◽  
D. P. H. HASSELMAN
Keyword(s):  
Titanium Dioxide ◽  
Thermal Diffusivity ◽  
Nonstoichiometric Titanium

scholarly journals Synthesis and Attestation of Titanium Dioxide Nanotubes Based Photocatalyst for Water and Air Purification out of Harmful Organic Impurities

2020 ◽  
Author(s):  
A. A. Valeeva ◽  
I. B. Dorosheva ◽  
I. A. Weinstein ◽  
A. A. Rempel ◽  
E. A. Kozlova
Keyword(s):  
Titanium Dioxide ◽  
Visible Light ◽  
Titanium Foil ◽  
Titanium Dioxide Nanotubes ◽  
Titanium Dioxide Films ◽  
Organic Impurities ◽  
Degussa P25 ◽  
Foil Substrate ◽  
Nonstoichiometric Titanium ◽  
Purification Of Water

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

Influence of calcination on photocatalytic properties of nonstoichiometric titanium dioxide nanotubes

2019 ◽  
Vol 796 ◽  
pp. 293-299 ◽  
Author(s):  
Albina A. Valeeva ◽  
Irina B. Dorosheva ◽  
Ekaterina A. Kozlova ◽  
Robert V. Kamalov ◽  
Alexander S. Vokhmintsev ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Properties ◽  
Titanium Dioxide Nanotubes ◽  
Nonstoichiometric Titanium

Studies on the mechanism of printing film-coated tablets containing titanium dioxide in the film by using UV laser irradiation

2009 ◽  
Vol 00 (00) ◽  
pp. 090915102728058-8
Author(s):  
Yoshiteru Kato ◽  
Yasuhiko Nakashima ◽  
Naoki Shino ◽  
Koichi Sasaki ◽  
Akihiro Hosokawa ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Laser Irradiation ◽  
Uv Laser

Development and production experience of the multilayer curtain-coated linerboard of Ji’an PM No. 3,

TAPPI Journal ◽  
2014 ◽  
Vol 13 (2) ◽  
pp. 17-25
Author(s):  
JUNMING SHU ◽  
ARTHAS YANG ◽  
PEKKA SALMINEN ◽  
HENRI VAITTINEN
Keyword(s):  
Titanium Dioxide ◽  
High Speed ◽  
Food Packaging ◽  
Production Efficiency ◽  
Positive Impact ◽  
Low Cost ◽  
Board Structure ◽  
Flexographic Printing ◽  
Curtain Coating ◽  
Coating Formulations

The Ji’an PM No. 3 is the first linerboard machine in China to use multilayer curtain coating technology. Since successful startup at the end of 2011, further development has been carried out to optimize running conditions, coating formulations, and the base paper to provide a product with satisfactory quality and lower cost to manufacture. The key challenges include designing the base board structure for the desired mechanical strength, designing the surface properties for subsequent coating operations, optimizing the high-speed running of the curtain coater to enhance production efficiency, minimizing the amount of titanium dioxide in the coating color, and balancing the coated board properties to make them suitable for both offset and flexographic printing. The pilot and mill scale results show that curtain coating has a major positive impact on brightness, while smoothness is improved mainly by the blade coating and calendering conditions. Optimization of base board properties and the blade + curtain + blade concept has resulted in the successful use of 100% recycled fiber to produce base board. The optical, mechanical, and printability properties of the final coated board meet market requirements for both offset and flexographic printing. Machine runnability is excellent at the current speed of 1000 m/min, and titanium dioxide has been eliminated in the coating formulations without affecting the coating coverage. A significant improvement in the total cost of coated white liner production has been achieved, compared to the conventional concept of using virgin fiber in the top ply. Future development will focus on combining low cost with further quality improvements to make linerboard suitable for a wider range of end-use applications, including frozen-food packaging and folding boxboard.

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