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Photocatalytic functional coatings of TiO2 thin films on polymer substrate by plasma enhanced atomic layer deposition

Paper ID Volume ID Publish Year Pages File Format Full-Text
47596 46477 2009 6 PDF Available
Title
Photocatalytic functional coatings of TiO2 thin films on polymer substrate by plasma enhanced atomic layer deposition
Abstract

We prepared photocatalytic TiO2 thin films which exhibited relatively high growth rate and low impurity on polymer substrate by plasma enhanced atomic layer deposition (PE-ALD) from Ti(NMe2)4 [tetrakis (dimethylamido) Ti, TDMAT] and O2 plasma to show the self-cleaning effect. The TiO2 thin films with anatase phase and bandgap energy about 3.3 eV were deposited at growth temperature of 250 °C and the photocatalytic effects were compared with commercial Activ glass. From contact angles measurement of water droplet and photo-induced degradation test of organic liquid, TiO2 thin films with anatase phases showed superhydrophilic phenomena and decomposed organic liquid after UV irradiation. The anatase TiO2 thin film on polymer substrate showed highest photocatalytic efficiency after 5 h UV irradiation. We attribute the highest photocatalytic efficiency of TiO2 thin film with anatase structure to the formation of suitable crystalline phase and large surface area.

Keywords
TiO2; Photocatalyst; Plasma enhanced atomic layer deposition; Self-cleaning effect; Polymer substrate
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Photocatalytic functional coatings of TiO2 thin films on polymer substrate by plasma enhanced atomic layer deposition
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 91, Issues 3–4, 28 September 2009, Pages 628–633
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
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Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us