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Photocatalytic TiO2 thin films by aerosol-deposition: From micron-sized particles to nano-grained thin film at room temperature

Paper ID Volume ID Publish Year Pages File Format Full-Text
48016 46488 2008 7 PDF Available
Title
Photocatalytic TiO2 thin films by aerosol-deposition: From micron-sized particles to nano-grained thin film at room temperature
Abstract

A nano-sized, TiO2 photocatalytic thin film with a dispersion of anatase crystallites was successfully fabricated from a micron-sized powder by aerosol deposition (AD) at room temperature (RT). Extremely rough, network-structured, photocatalytic thin films were obtained without any binder or heat treatment. The films were photocatalytically active under both ultraviolet (UV) and solar light as a result of their nano-sized, anatase grains and amorphous phase. Various photocatalytic evaluations confirmed the excellent photocatalytic performance of the AD TiO2 film in terms of organic degradation, pathogen disinfection, and hydrophilicity. This enhanced photocatalytic performance was attributed not only to the nano-crystalline anatase grains, but also to the exceptionally rough, network microstructure and nano-projections capable of supporting the enhanced loading of organic contaminants onto the film surface. Furthermore, because the nano-grained, AD TiO2 photocatalytic thin films were fabricated from low-cost, micron-sized powder with a deposition rate as high as 3 μm/min at RT, this process promises to be one of the most cost-effective methods for many practical photocatalyst applications.

Keywords
Anatase; TiO2; Thin film; Aerosol deposition; Photocatalyst
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Photocatalytic TiO2 thin films by aerosol-deposition: From micron-sized particles to nano-grained thin film at room temperature
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 83, Issues 1–2, 1 September 2008, Pages 1–7
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
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