Next Article in Journal
A Study of a Powder Coating Gun near Field: A Case of Staggered Concentric Jet Flow
Previous Article in Journal
Photocatalytic Activity of Reactively Sputtered Titania Coatings Deposited Using a Full Face Erosion Magnetron
Open AccessArticle

Optimization Studies of Photocatalytic Tungsten-Doped Titania Coatings Deposited by Reactive Magnetron Co-Sputtering

Surface Engineering Group, School of Engineering, Manchester Metropolitan University, Manchester, M1 5GD, UK
*
Author to whom correspondence should be addressed.
Coatings 2013, 3(4), 194-207; https://doi.org/10.3390/coatings3040194
Received: 24 August 2013 / Revised: 16 October 2013 / Accepted: 21 October 2013 / Published: 25 October 2013
In this article we investigate the structural and photocatalytic properties of W-doped titanium dioxide coatings. TiO2-W thin films were deposited onto glass slides by reactive magnetron co-sputtering. The properties of the films were analyzed using such techniques as XRD, Raman spectroscopy, EDX, TEM, and surface profilometry. The photocatalytic properties of the coatings were assessed using the methylene blue (MB) degradation test under UV and fluorescent light sources. The methylene blue decomposition experiments showed that, at the optimum dopant concentration of tungsten, the photocatalytic activity can be improved by a factor of 6, compared to undoped titania. For the coatings discussed within this work, the optimum dopant concentration was determined to be 5.89 at.% of W. The results indicated that tungsten doping at this level extends the lifetime of the photogenerated charge carriers and significantly increases the photocatalyst surface area. View Full-Text
Keywords: titanium dioxide; photocatalytic coatings; doping; methylene blue; magnetron sputtering titanium dioxide; photocatalytic coatings; doping; methylene blue; magnetron sputtering
Show Figures

Figure 1

MDPI and ACS Style

Ratova, M.; West, G.T.; Kelly, P.J. Optimization Studies of Photocatalytic Tungsten-Doped Titania Coatings Deposited by Reactive Magnetron Co-Sputtering. Coatings 2013, 3, 194-207.

Show more citation formats Show less citations formats

Article Access Map

1
Only visits after 24 November 2015 are recorded.
Back to TopTop