scholarly journals Improving the Photocatalytic Properties of TiO2 Coatings by Modification of the Pore Size and the Crystalline Structure by Combining Anodization and MAO Technology

2021 ◽  
pp. ArticleID:210945
Author(s):  
Song Wei ◽  
Keyword(s):  
Pore Size ◽  
Crystalline Structure ◽  
Photocatalytic Properties ◽  
Tio2 Coatings

Characterization and Photocatalytic Properties of Plasma Sprayed TiO2 Coatings Deposited from Nanoparticles

2006 ◽  
Vol 317-318 ◽  
pp. 561-564
Author(s):  
Huang Chen ◽  
Tae Ho Kim ◽  
Soo Wohn Lee ◽  
Ho Sung Aum ◽  
Bo Young Hur ◽  
...  
Keyword(s):  
Photocatalytic Property ◽  
Photocatalytic Properties ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron ◽  
Tio2 Coatings ◽  
Plasma Sprayed ◽  
Tem Transmission Electron Microscopy ◽  
Scanning Electron ◽  
Observation Results

The phase and microstructure of four kinds of plasma sprayed TiO2 coatings (P25, ST, NK, KT) were characterized by XRD (X-ray Diffraction), FE-SEM (Field Emission Scanning Electron Microscope) and TEM ( Transmission Electron Microscopy). Their photocatalytic properties were discussed in relation to phase composition and microstructure. The FE-SEM observation results reveal that there are quite a number of nanoparticles on the surfaces of all four kinds of plasma sprayed TiO2 coatings, which provide photocatalytic reactive sites. Based on the observation results of FE-SEM and TEM, the microstructure schematic of plasma sprayed TiO2 coatings using nanoparticles as feedstock is suggested. The best photocatalytic property of P25 coating among the four plasma sprayed TiO2 coatings is attributed to the combination of its fine “cauliflower” structure and the highest anatase content.

The effects of hydrothermal temperature on structural and photocatalytic properties of ordered large pore size TiO2–SiO2 mesostructured composite

2012 ◽  
Vol 519 ◽  
pp. 72-76 ◽  
Author(s):  
Babak Mazinani ◽  
Ali Beitollahi ◽  
Shahidan Radiman ◽  
Abdul Kadir Masrom ◽  
Suhaina Mohd Ibrahim ◽  
...  
Keyword(s):  
Pore Size ◽  
Photocatalytic Properties ◽  
Hydrothermal Temperature ◽  
Large Pore ◽  
Large Pore Size

Effects of calcination temperature on the pore size and wall crystalline structure of mesoporous alumina

2008 ◽  
Vol 319 (1) ◽  
pp. 247-251 ◽  
Author(s):  
Zhong-Xi Sun ◽  
Ting-Ting Zheng ◽  
Qi-Bing Bo ◽  
Miao Du ◽  
Willis Forsling
Keyword(s):  
Pore Size ◽  
Calcination Temperature ◽  
Crystalline Structure ◽  
Mesoporous Alumina

Suspension plasma sprayed TiO2 coatings using different injectors and their photocatalytic properties

2010 ◽  
Vol 205 (4) ◽  
pp. 980-986 ◽  
Author(s):  
Stefan Kozerski ◽  
Filofteia-Laura Toma ◽  
Lech Pawlowski ◽  
Beate Leupolt ◽  
Leszek Latka ◽  
...  
Keyword(s):  
Photocatalytic Properties ◽  
Tio2 Coatings ◽  
Plasma Sprayed

scholarly journals SiO2@TiO2 Coating: Synthesis, Physical Characterization and Photocatalytic Evaluation

Coatings ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 120 ◽  
Author(s):  
A. Rosales ◽  
A. Maury-Ramírez ◽  
R. Mejía-De Gutiérrez ◽  
C. Guzmán ◽  
K. Esquivel
Keyword(s):  
Uv Light ◽  
Construction Materials ◽  
Antibacterial Properties ◽  
Tio2 Coating ◽  
Physical Characterization ◽  
Photocatalytic Properties ◽  
Pilot Projects ◽  
Self Cleaning ◽  
Tio2 Coatings ◽  
Coating Synthesis

Use of silicon dioxide (SiO2) and titanium dioxide (TiO2) have been widely investigated individually in coatings technology, but their combined properties promote compatibility for different innovative applications. For example, the photocatalytic properties of TiO2 coatings, when exposed to UV light, have interesting environmental applications, such as air purification, self-cleaning and antibacterial properties. However, as reported in different pilot projects, serious durability problems, associated with the adhesion between the substrate and TiO2, have been evidenced. Thus, the aim of this work is to synthesize SiO2 together with TiO2 to increase the durability of the photocatalytic coating without affecting its photocatalytic potential. Therefore, synthesis using sonochemistry, synthesis without sonochemistry, physical characterization, photocatalytic evaluation, and durability of the SiO2, SiO2@TiO2 and TiO2 coatings are presented. Results indicate that using SiO2 improved the durability of the TiO2 coating without affecting its photocatalytic properties. Thus, this novel SiO2@TiO2 coating shows potential for developing long-lasting, self-cleaning and air-purifying construction materials.

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