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Photocatalytic inactivation of bacteria by photocatalyst Bi2WO6 under visible light

Paper ID Volume ID Publish Year Pages File Format Full-Text
51293 46837 2009 4 PDF Available
Title
Photocatalytic inactivation of bacteria by photocatalyst Bi2WO6 under visible light
Abstract

The photocatalytic inactivation of Escherichia coli under visible light irradiation (λ > 420 nm) was performed with Bi2WO6 to investigate the photocatalytic bactericidal capability. Our work shows that the single phase oxide photocatalyst Bi2WO6 is effective in photocatalytic inactivation on E. coli. And the results revealed that the photocatalytic inactivation rate of E. coli with Bi2WO6 followed pseudo-first-order kinetics. The bactericidal action was directly observed by TEM and further proved by the measurement of K+ leakage from the inactive E. coli through the ICP-OES analysis. The results demonstrated that the photocatalysis could cause drastic damage in E. coli cells.

Keywords
Photocatalysis; Visible light; Single phase oxide; Escherichia coli; K+ leakage
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Photocatalytic inactivation of bacteria by photocatalyst Bi2WO6 under visible light
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 14, 25 August 2009, Pages 1940–1943
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
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