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Effect of UVA irradiance on photocatalytic and UVA inactivation of Bacillus cereus spores

Paper ID Volume ID Publish Year Pages File Format Full-Text
30394 44476 2009 5 PDF Available
Title
Effect of UVA irradiance on photocatalytic and UVA inactivation of Bacillus cereus spores
Abstract

The current study is the first to delineate the contribution of photocatalysis to inactivation of Bacillus cereus endospores on dry surfaces over a broad range (0–153 W/m2) of UVA irradiance. Inactivation of spores at low UVA irradiance (30 W/m2) was primarily due to photocatalysis, whereas at higher UVA irradiance inactivation was primarily due to UV alone. A linear relationship between UVA irradiance and the rate of spore inactivation was observed in the absence of photocatalyst. The rate of photocatalytic inactivation was non-linear with respect to UVA irradiance, exhibiting a maximum at 30 W/m2.

Keywords
Endospores; Photocatalytic coating; TiO2; Degussa P25; Optimum irradiance; Titanium dioxide
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Effect of UVA irradiance on photocatalytic and UVA inactivation of Bacillus cereus spores
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology B: Biology - Volume 94, Issue 2, 9 February 2009, Pages 96–100
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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
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