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A Review of Heterogeneous Photocatalysis for Water and Surface Disinfection

Byrne, JA, Dunlop, PSM, Hamilton, Jeremy, Fernández-Ibáñez, Pilar, Polo-López, Inmaculada, Sharma, Preetam Kumar and Vennard, Ashlene Sarah Margaret (2015) A Review of Heterogeneous Photocatalysis for Water and Surface Disinfection. Molecules, 20 (4). pp. 5574-5615. [Journal article]

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URL: http://www.mdpi.com/1420-3049/20/4/5574

DOI: 10.3390/molecules20045574

Abstract

Photo-excitation of certain semiconductors can lead to the production of reactive oxygen species that can inactivate microorganisms. The mechanisms involved are reviewed, along with two important applications. The first is the use of photocatalysis to enhance the solar disinfection of water. It is estimated that 750 million people do not have accessed to an improved source for drinking and many more rely on sources that are not safe. If one can utilize photocatalysis to enhance the solar disinfection of water and provide an inexpensive, simple method of water disinfection, then it could help reduce the risk of waterborne disease. The second application is the use of photocatalytic coatings to combat healthcare associated infections. Two challenges are considered, i.e., the use of photocatalytic coatings to give “self-disinfecting” surfaces to reduce the risk of transmission of infection via environmental surfaces, and the use of photocatalytic coatings for the decontamination and disinfection of medical devices. In the final section, the development of novel photocatalytic materials for use in disinfection applications is reviewed, taking account of materials, developed for other photocatalytic applications, but which may be transferable for disinfection purposes.

Item Type:Journal article
Keywords:photocatalysis; titanium dioxide; disinfection
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:32747
Deposited By: Dr Patrick Dunlop
Deposited On:11 Jan 2016 09:16
Last Modified:20 Jan 2017 10:37

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