ChemInform Abstract: HETEROGENEOUS PHOTOCATALYTIC PREPARATION OF SUPPORTED CATALYSTS. PHOTODEPOSITION OF PLATINUM ON TITANIUM DIOXIDE POWDER AND OTHER SUBSTRATES

1978 ◽  
Vol 9 (37) ◽  
Author(s):  
B. KRAEUTLER ◽  
A. J. BARD
Keyword(s):  
Titanium Dioxide ◽  
Supported Catalysts ◽  
Titanium Dioxide Powder ◽  
Dioxide Powder

scholarly journals Population Balance Application in TiO2 Particle Deagglomeration Process Modeling

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3523
Author(s):  
Radosław Krzosa ◽  
Łukasz Makowski ◽  
Wojciech Orciuch ◽  
Radosław Adamek
Keyword(s):  
Particle Size ◽  
Titanium Dioxide ◽  
Mechanistic Model ◽  
Population Balance ◽  
Tio2 Particle ◽  
Application Process ◽  
Titanium Dioxide Powder ◽  
Dioxide Powder ◽  
Computational Fluid Dynamics Cfd ◽  
Hydrodynamic Stresses

The deagglomeration of titanium-dioxide powder in water suspension performed in a stirring tank was investigated. Owing to the widespread applications of the deagglomeration process and titanium dioxide powder, new, more efficient devices and methods of predicting the process result are highly needed. A brief literature review of the application process, the device used, and process mechanism is presented herein. In the experiments, deagglomeration of the titanium dioxide suspension was performed. The change in particle size distribution in time was investigated for different impeller geometries and rotational speeds. The modification of impeller geometry allowed the improvement of the process of solid particle breakage. In the modelling part, numerical simulations of the chosen impeller geometries were performed using computational-fluid-dynamics (CFD) methods whereby the flow field, hydrodynamic stresses, and other useful parameters were calculated. Finally, based on the simulation results, the population-balance with a mechanistic model of suspension flow was developed. Model predictions of the change in particle size showed good agreement with the experimental data. Using the presented method in the process design allowed the prediction of the product size and the comparison of the efficiency of different impeller geometries.

Study on the Dispersion of Carbon Doped Titanium Dioxide Powder in Aqueous Solution

2013 ◽  
Vol 788 ◽  
pp. 246-249 ◽  
Author(s):  
Zhi Wang ◽  
Zhi Qiang Yang
Keyword(s):  
Aqueous Solution ◽  
Titanium Dioxide ◽  
Ph Value ◽  
Mass Ratio ◽  
Carbon Doped ◽  
Titanium Dioxide Powder ◽  
Dioxide Powder ◽  
Ultrasonic Time ◽  
Dispersant Additive ◽  
Doped Titanium Dioxide

The dispersion of carbon doped titanium dioxide (TiO2) powder in aqueous solution was studied. The spectrophotometer method was used to determine the effects of dispersant additive ratio, ultrasonic time and pH value on the dispersion of TiO2. The results show that the carbon doped titanium dioxide aqueous solution was found to have the optimum dispersion performance when the mass ratio of sodium hexametaphosphate (SHMP)/TiO2/water is 1:50:100, the ultrasonic time is 15min and the pH value of the solution is 10.

Plasma Induced Grafting of PMMA onto Titanium Dioxide Powder

2005 ◽  
Vol 7 (4) ◽  
pp. 2955-2958 ◽  
Author(s):  
Zhong Shaofeng ◽  
Meng Yuedong ◽  
Ou Qiongrong ◽  
Xu Xu
Keyword(s):  
Titanium Dioxide ◽  
Titanium Dioxide Powder ◽  
Dioxide Powder

scholarly journals Lead ions sorption using magnetically modified sorbent based on titanium dioxide powder

2018 ◽  
Vol 5 ◽  
pp. S61-S70
Author(s):  
Jana Seidlerová ◽  
Oldřich Motyka ◽  
Klára Drobíková ◽  
Ivo Šafařík
Keyword(s):  
Titanium Dioxide ◽  
Lead Ions ◽  
Titanium Dioxide Powder ◽  
Dioxide Powder

EFFECTS OF PHOTOCATALYTIC REACTIONS ON MARINE PLANKTON: TITANIUM DIOXIDE POWDER AS CATALYST ON THE BODY SURFACE

2001 ◽  
Vol 36 (7) ◽  
pp. 1419-1425 ◽  
Author(s):  
Shuji Matsuo ◽  
Yasuhiro Anraku ◽  
Sunao Yamada ◽  
Tsuneo Honjo ◽  
Taku Matsuo ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Body Surface ◽  
The Body ◽  
Marine Plankton ◽  
Titanium Dioxide Powder ◽  
Dioxide Powder ◽  
Photocatalytic Reactions
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