A TiO2/Fe3+ Coated on Fibre Glass Treatment for Phenol with UV Irradiation

2012 ◽  
Vol 472-475 ◽  
pp. 561-564 ◽  
Author(s):  
Xi Feng Wang ◽  
Dang Cong Peng ◽  
Xiao Lian Hu
Keyword(s):  
Photocatalytic Activity ◽  
Uv Irradiation ◽  
Glass Fibre ◽  
Dip Coating ◽  
Support Surface ◽  
Fibre Glass ◽  
Coating Technique ◽  
Immobilized Catalyst ◽  
Photocatalysis Reaction ◽  
Dip Coating Technique

This paper reported the study of the photocatalytic activity of immobilized Fe3+ doped TiO2 on glass fibre yarn. A dip-coating technique fixing catalyst onto the support surface was applied to get the TiO2/Fe3+ coated filler. A photo reactor consists of a cylindrical quartz tube and filler with the immobilized catalyst was applied in the study. The photocatalytic activity was determined by the degradation of phenol in water (10 mg L-1). Results suggested that the fibre glass coated TiO2/Fe3+ photocatalysis filler has very excellent performances in repeat using and the supported TiO2 was very stable in photocatalysis reaction.

Effect of SnO2 Addition into TiO2 Thin Films on Photocatalytic Activity and Hydrophilic Property

2014 ◽  
Vol 979 ◽  
pp. 90-93 ◽  
Author(s):  
Weerachai Sangchay ◽  
Tanarat Rattanakool
Keyword(s):  
Thin Films ◽  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Uv Irradiation ◽  
Sol Gel ◽  
Dip Coating ◽  
Photocatalytic Activities ◽  
Self Cleaning ◽  
Xrd Techniques ◽  
Dip Coating Technique

The pure TiO2and SnO2-TiO2thin films on glass substrate were fabricated using a sol-gel dip coating technique. The thin films were annealed at the temperature of 700 °C for 2 h with the heating rate of 10 °C/min. The microstructures of the fabricated thin films were characterized by SEM and XRD techniques. The photocatalytic activities of the thin films were also tested by the degradation of methylene blue (MB) solution under UV irradiation. Finally, hydrophilic or self-cleaning properties of thin films were evaluated by measuring the contact angle of water droplet on the thin films with and without UV irradiation. It was found that 1 %mol SnO2-TiO2thin films shows the highest of photocatalytic activity and provide the most self-cleaning properties.

Photocatalytic Activity of Porous TiO2 Film Prepared by Dip-Coating Technique Using Sol Containing Trehalose

2009 ◽  
Vol 620-622 ◽  
pp. 691-694 ◽  
Author(s):  
Takeshi Miki ◽  
Kaori Nishizawa ◽  
Eiji Watanabe ◽  
Hiroshi Taoda
Keyword(s):  
Photocatalytic Activity ◽  
Tio2 Film ◽  
Uv Light ◽  
Dip Coating ◽  
Coating Solution ◽  
Coating Technique ◽  
Glass Substrates ◽  
Trehalose Dihydrate ◽  
Dip Coating Technique ◽  
Hydrolysis Of

To obtain porous and thick TiO2 film, the precursor sol was prepared by hydrolysis of Ti isopropoxide and then complexed with trehalose dihydrate. The porous TiO2 film was fabricated by dip-coating technique on quartz glass substrates using this sol. The TiO2 films were calcined at 500-700 °C. The photocatalytic activity of the films was evaluated by examining decomposition of methylene blue in aqueous solution under UV light irradiation. The TiO2 film prepared from the sol with trehalose was more active than TiO2 film prepared from the sol without trehalose. The trehalose addition to the dip-coating solution was effective in improving the photocatalytic activity of the TiO2 film.

scholarly journals Development of Adhesive, Bioactive and Antibacterial Titania Sol-Gel Coating on Titanium Substrate by Dip-Coating Technique

Coatings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 243
Author(s):  
Diana Horkavcová ◽  
Quentin Doubet ◽  
Gisèle Laure Lecomte-Nana ◽  
Eva Jablonská ◽  
Aleš Helebrant
Keyword(s):  
Simulated Body Fluid ◽  
Body Fluid ◽  
Sol Gel ◽  
Titanium Substrate ◽  
Dip Coating ◽  
Coating Technique ◽  
Metal Implants ◽  
Excellent Adhesion ◽  
Titania Sol ◽  
Dip Coating Technique

The sol-gel method provides a wide variety of applications in the medical field. One of these applications is the formation of coatings on the metal implants. The coatings containing specific additive can enhance or improve the existing surface properties of the substrate. In this work, titania sol-gel coatings were doped with two forms of silver (AgNO3, Ag3PO4) and synthetic hydroxyapatite and applied on the titanium samples by dip-coating technique. After drying and slow firing, all coatings were characterized with scanning electron microscopy. Thin coatings were successfully prepared with excellent adhesion to the substrate (measured by ASTM D 3359-2), despite cracks. Coatings containing silver and hydroxyapatite demonstrated a 100% antibacterial effect against Escherichia coli after 24 h. The bioactivity of the coatings containing hydroxyapatite tested in modified simulated body fluid under static-dynamic conditions was confirmed by bone-like hydroxyapatite precipitation. To better understand the interaction of the coatings with simulated body fluid (SBF), changes of Ca2+ and (PO4)3− ions concentrations and pH values were studied.

Synthesis and Electrochemical Behavior of Ceria Based Bi-Layer Films by Dip Coating Technique

2015 ◽  
Vol 15 (1) ◽  
pp. 360-367
Author(s):  
M. Karl Chinnu ◽  
K. Vijai Anand ◽  
R. Mohan Kumar ◽  
T. Alagesan ◽  
R. Jayavel
Keyword(s):  
Electrochemical Behavior ◽  
Dip Coating ◽  
Coating Technique ◽  
Dip Coating Technique

Surface morphological properties of Ag-Al2O3 nanocermet layers using dip-coating technique

2017 ◽  
Author(s):  
Nor Adhila Muhammad ◽  
Siti Fatimah Suhaimi ◽  
Zuhana Ahmad Zubir ◽  
Sahhidan Daud
Keyword(s):  
Dip Coating ◽  
Morphological Properties ◽  
Coating Technique ◽  
Dip Coating Technique

Electrochemical Impedance Spectroscopy Behaviour of NdFeB Coated Magnets in Saliva Solution for Orthodontic Applications

2015 ◽  
Vol 227 ◽  
pp. 515-518 ◽  
Author(s):  
Luigi Calabrese ◽  
Lucio Bonaccorsi ◽  
Chiara Borsellino ◽  
Angela Caprì ◽  
Francesca Fabiano ◽  
...  
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Corrosion Protection ◽  
Electrochemical Impedance ◽  
Protective Action ◽  
Barrier Properties ◽  
Dip Coating ◽  
Coating Technique ◽  
Number Of Layers ◽  
Dip Coating Technique

In this work the assessment of the corrosion performances in saliva solution of NdFeB magnets coated with silane layers was studied for its application in orthodontic brackets. The silane film, deposited by dip coating technique, has been prepared with varying dipping steps, with the purpose to identify the number of layers able to achieve an optimal protective action. Corrosion protection performance, during immersion in Fusayama synthetic saliva solution, was evaluated by means electrochemical impedance spectroscopy (EIS). The silane coatings evidenced good barrier properties resulting in an improvement of the anti-corrosion performances of the magnets. Better results were observed for samples with at least 15 layers of silane, that evidenced still acceptable protective action after three days of immersion in a Fusayama synthetic saliva solution.

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