Update on Interfacial Charge Transfer (IFTC) Processes on Films Inactivating Viruses/Bacteria under Visible Light: Mechanistic Considerations and Critical Issues

This review presents an update describing binary and ternary semiconductors involving interfacial charge transfer (IFCT) in composites made up by TiO2, CuO, Ag2O and Fe2O3 used in microbial disinfection (bacteria and viruses). The disinfection mechanism, kinetics and generation of reactive oxygen sp...

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Bibliographic Details
Published in:Catalysts 2021-02, Vol.11 (2), p.201
Main Authors: Rtimi, Sami, Kiwi, John
Format: Article
Language:English
Subjects:
Adenoviruses
Bacteria
bacterial inactivation
Binding sites
Biofilms
Catalysts
Charge transfer
Chemical reactions
Deactivation
Deoxyribonucleic acid
Disinfection
disinfection mechanisms
DNA
E coli
Genomes
Light
Microorganisms
Oxidation
Pathogens
Photocatalysis
Proteins
ROS diffusion lengths
ROS lifetimes
Surface properties
Thin films
Titanium dioxide
viral inactivation
Viral infections
Viruses
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Description
Summary:This review presents an update describing binary and ternary semiconductors involving interfacial charge transfer (IFCT) in composites made up by TiO2, CuO, Ag2O and Fe2O3 used in microbial disinfection (bacteria and viruses). The disinfection mechanism, kinetics and generation of reactive oxygen species (ROS) in solution under solar/visible light are discussed. The surface properties of the photocatalysts and their active catalytic sites are described in detail. Pathogenic biofilm inactivation by photocatalytic thin films is addressed since biofilms are the most dangerous agents of spreading pathogens into the environment.
ISSN:2073-4344
2073-4344
DOI:10.3390/catal11020201