fulltext.study @t Gmail

Enhanced inactivation of bacterial spores by atmospheric pressure plasma with catalyst TiO2

Paper ID Volume ID Publish Year Pages File Format Full-Text
47608 46478 2010 5 PDF Available
Title
Enhanced inactivation of bacterial spores by atmospheric pressure plasma with catalyst TiO2
Abstract

Both atmospheric pressure plasma and photo-catalyst metal oxide titanium dioxide (TiO2) are well known for their microorganism inactivation and chemical material decomposition abilities. In this work, radio-frequency atmospheric pressure plasma and TiO2 are used together to inactivate Bacillus subtilis spores that have a very high degree of environmental resistance to ultra-violet (UV) photons and heat. The combinational use of the plasma and TiO2 demonstrates an enhanced performance of B. subtilis spore inactivation by showing a decrease in the decimal reduction time of as large as 40% compared with the use of plasma alone. A significant increase of hydroxyl (OH) and excited oxygen atomic emission line (O I) intensities in the presence of TiO2 suggests that the atmospheric pressure plasma assisted by TiO2 is very effective at generating reactive oxygen radicals, which is known to be a dominant factor in bacterial spore inactivation. Possible TiO2 activation mechanism by the plasma is investigated.

Keywords
TiO2; Atomspheric pressure plasma; Bacterial spore; Sterilization; Bacillus subtilis; Plasma catalysis; Oxygen vacancy
First Page Preview
Enhanced inactivation of bacterial spores by atmospheric pressure plasma with catalyst TiO2
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 93, Issues 3–4, 12 January 2010, Pages 212–216
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