fulltext.study @t Gmail

Photoelectrochemical characterisation and photocatalytic activity of composite La2O3–TiO2 coatings on stainless steel

Paper ID Volume ID Publish Year Pages File Format Full-Text
48682 46518 2007 11 PDF Available
Title
Photoelectrochemical characterisation and photocatalytic activity of composite La2O3–TiO2 coatings on stainless steel
Abstract

Composite La2O3–TiO2 and plain TiO2 photocatalytic coatings were prepared by a dip-coating technique on stainless steel substrates (SS) and tested as photoelectrodes in the electrically enhanced UV-photooxidation of organics. Electrode specimens were characterised by photovoltammetry under UV light in 0.1 M K2SO4 solutions in the absence and presence of oxalate (a model organic pollutant), while larger electrodes were used in bulk photooxidation of oxalate and malachite green (a typical dye). La2O3–TiO2/SS electrodes showed similar photocurrents to those of TiO2 coatings on Ti substrates (TiO2/Ti) and similar oxalate electro-photooxidation rates at moderate positive bias values. They also exhibited high removal rates for malachite green, but the electrochemical enhancement of its photooxidation was only observed at thin (0.5 mg cm−2) and low La2O3 content (5 mol% La) coatings.

Keywords
Titanium dioxide; Lanthanum oxide; Stainless steel; Photoelectrochemistry; Photooxidation
First Page Preview
Photoelectrochemical characterisation and photocatalytic activity of composite La2O3–TiO2 coatings on stainless steel
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 73, Issues 1–2, 24 April 2007, Pages 23–33
Authors
, , , , , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us