Nitrogen and copper doped solar light active TiO2 photocatalysts for water decontamination

Mike B. Fisher; Donal A. Keane; Pilar Fernández-Ibáñez; John Colreavy; Steven J. Hinder; Kevin G. McGuigan; Suresh C. Pillai

doi:10.1016/j.apcatb.2012.10.013

Nitrogen and copper doped solar light active TiO₂ photocatalysts for water decontamination

Mike B. Fisher, Donal A. Keane, Pilar Fernández-Ibáñez, John Colreavy, Steven J. Hinder, Kevin G. McGuigan, Suresh C. Pillai

Research output: Contribution to journal › Article › peer-review

Abstract

A novel class of photocatalytic coating capable of degrading bacterial and chemical contaminants in the presence of visible sunlight wavelengths was produced by depositing a stable photocatalytic TiO₂ film on the internal lumen of glass bottles via a sol-gel method. This coating was prepared in either undoped form or doped with nitrogen and/or copper to produce visible light-active TiO₂ films which were annealed at 600°C and were characterized by Raman and X-ray photoelectron spectroscopy. The presence of doped and undoped TiO₂ films was found to accelerate the degradation of methylene blue in the presence of natural sunlight, while copper-doped TiO₂ films were found to accelerate bacterial inactivation (of Escherichia coli and Enterococcus faecalis) in the presence of natural sunlight.

Original language	English
Pages (from-to)	8-13
Number of pages	6
Journal	Applied Catalysis B: Environmental
Volume	130-131
DOIs	https://doi.org/10.1016/j.apcatb.2012.10.013
Publication status	Published - 7 Feb 2013

Keywords

Anatase
Bacterial deactivation
Contamination
Depollution
Disinfection
Emerging pollutants
Photocatalysis
SODIS
Sunlight
Thin film
Titanium dioxide
Visible light

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10.1016/j.apcatb.2012.10.013

https://arrow.tudublin.ie/cenresart/19Licence: CC BY-NC-SA

Cite this

@article{80437ac987b249439088d73107c18be7,

title = "Nitrogen and copper doped solar light active TiO2 photocatalysts for water decontamination",

abstract = "A novel class of photocatalytic coating capable of degrading bacterial and chemical contaminants in the presence of visible sunlight wavelengths was produced by depositing a stable photocatalytic TiO2 film on the internal lumen of glass bottles via a sol-gel method. This coating was prepared in either undoped form or doped with nitrogen and/or copper to produce visible light-active TiO2 films which were annealed at 600°C and were characterized by Raman and X-ray photoelectron spectroscopy. The presence of doped and undoped TiO2 films was found to accelerate the degradation of methylene blue in the presence of natural sunlight, while copper-doped TiO2 films were found to accelerate bacterial inactivation (of Escherichia coli and Enterococcus faecalis) in the presence of natural sunlight.",

keywords = "Anatase, Bacterial deactivation, Contamination, Depollution, Disinfection, Emerging pollutants, Photocatalysis, SODIS, Sunlight, Thin film, Titanium dioxide, Visible light",

author = "Fisher, {Mike B.} and Keane, {Donal A.} and Pilar Fern{\'a}ndez-Ib{\'a}{\~n}ez and John Colreavy and Hinder, {Steven J.} and McGuigan, {Kevin G.} and Pillai, {Suresh C.}",

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T1 - Nitrogen and copper doped solar light active TiO2 photocatalysts for water decontamination

AU - Fisher, Mike B.

AU - Keane, Donal A.

AU - Fernández-Ibáñez, Pilar

AU - Colreavy, John

AU - Hinder, Steven J.

AU - McGuigan, Kevin G.

AU - Pillai, Suresh C.

PY - 2013/2/7

Y1 - 2013/2/7

N2 - A novel class of photocatalytic coating capable of degrading bacterial and chemical contaminants in the presence of visible sunlight wavelengths was produced by depositing a stable photocatalytic TiO2 film on the internal lumen of glass bottles via a sol-gel method. This coating was prepared in either undoped form or doped with nitrogen and/or copper to produce visible light-active TiO2 films which were annealed at 600°C and were characterized by Raman and X-ray photoelectron spectroscopy. The presence of doped and undoped TiO2 films was found to accelerate the degradation of methylene blue in the presence of natural sunlight, while copper-doped TiO2 films were found to accelerate bacterial inactivation (of Escherichia coli and Enterococcus faecalis) in the presence of natural sunlight.

AB - A novel class of photocatalytic coating capable of degrading bacterial and chemical contaminants in the presence of visible sunlight wavelengths was produced by depositing a stable photocatalytic TiO2 film on the internal lumen of glass bottles via a sol-gel method. This coating was prepared in either undoped form or doped with nitrogen and/or copper to produce visible light-active TiO2 films which were annealed at 600°C and were characterized by Raman and X-ray photoelectron spectroscopy. The presence of doped and undoped TiO2 films was found to accelerate the degradation of methylene blue in the presence of natural sunlight, while copper-doped TiO2 films were found to accelerate bacterial inactivation (of Escherichia coli and Enterococcus faecalis) in the presence of natural sunlight.

KW - Anatase

KW - Bacterial deactivation

KW - Contamination

KW - Depollution

KW - Disinfection

KW - Emerging pollutants

KW - Photocatalysis

KW - SODIS

KW - Sunlight

KW - Thin film

KW - Titanium dioxide

KW - Visible light

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