The photocatalytic removal of bacterial pollutants from drinking water

Dunlop, P.S.M.; Byrne, John; Manga, N.; Eggins, Brian R.

doi:10.1016/s1010-6030(02)00063-1

Cited by 234 publications

(120 citation statements)

References 48 publications

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“…Since then, there have been a large number of research studies reporting the use of photocatalysis to inactivate microorganisms including bacteria (cells (8,9), spores and biofilms (10), viruses (11), protozoa (12), fungi (13) and algae) (14). Photocatalytic disinfection has been reviewed by several researchers including Byrne et al (15), McCullagh et al (16), Malato et al (17) and Robertson et al (18).…”

Section: Figure 1 Sodis Process (Reproduced With Permission From Rementioning

confidence: 99%

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Nanotechnology Solutions for Global Water Challenges

McGuinness

Garvey

Whelan

et al. 2015

ACS Symposium Series

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The lack of clean and safe drinking water is responsible for more deaths than war, terrorism and weapons of mass destruction combined. This suggests contaminated water poses a significant threat to human health and welfare. In addition, standard water disinfection approaches such as sedimentation, filtration, and chemical or biological degradation are not fully capable of destroying emerging contaminants (e.g. pesticides, pharmaceutical waste products) or certain types of bacteria (e.g. Cryptosporidium parvum). Nanomaterials and nanotechnology based devices can potentially be employed to solve the challenges posed by various contaminants and

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Section: Figure 1 Sodis Process (Reproduced With Permission From Rementioning

confidence: 99%

“…The number of publications concerning the photocatalytic disinfection of water using novel visible light active materials is increasing and there are several good reviews concerning visible light active photocatalytic materials (8,15,75).…”

Section: Figure 3 Visible Light Activation Enabled By Narrowing the mentioning

confidence: 99%

Nanotechnology Solutions for Global Water Challenges

McGuinness

Garvey

Whelan

et al. 2015

ACS Symposium Series

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“…pollutants/impurities to harmless species. Semiconductor photocatalysts have been shown to be useful as carbon dioxide (Irvine et al, 1990) and nitrogen (Khan & Rao, 1991) fixatives and for the decomposition of O 3 (Ohtani et al, 1992), destruction of microorganisms such as bacteria (Matsunaga & Okochi, 1995;Zhang et al, 1994;Dunlop et al, …”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Degradation of Organic Pollutants: Mechanisms and Kinetics

Haque¹,

Bahnemann²,

Muneer³

2012

Organic Pollutants Ten Years After the Stockholm Convention - Environmental and Analytical Update

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“…Under the atmospheric conditions, a thin native oxide film, which is covered by a hydrocarbon contamination layer of rather complex compositions, would grow on the Ti surfaces [3]. Many application properties of titanium are closely related to this native oxide film [7]. For instance, the surface stability and corrosion resistance of titanium metal in ambient environments results from the presence of this surface oxide layer that acts as a kinetic barrier to the transport of ions, atoms, and electrons [8].…”

Section: Introductionmentioning

confidence: 99%

“…These radicals can decompose most organic compounds or bacteria [18,19]. Many studies have been conducted on the application of TiO 2 to water and air purification [7]. Another charming phenomenon of TiO 2 is the generation of a highly hydrophilic TiO 2 surface by UV light [20,21].…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic ellipsometrical studies of UV irradiation effects on the surface properties of the ultra thin native oxide film on titanium

Nanjo

Xia

Yao

et al. 2005

e-J. Surf. Sci. Nanotech.

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Under ultraviolet (UV) irradiation, an ultra thin titanium native oxides film covered by a hydrocarbon contamination (HC) layer on the as-deposited titanium film was investigated by using spectroscopic ellipsometry (SE), atomic force microscopy (AFM) and contact angle meter. Using a stable silicon dioxide sample as a reference provided an insight of the structural change of the titanium native oxide film under UV irradiation. The SE results indicate that UV irradiation can completely remove the adsorbed HC layer both on the Ti sample and on Si sample after 337 min and 4059 min respectively. The titanium native oxide accelerates the HC removing process. The pseudo-optical constants (pseudo-n and pseudo-k) of the Ti composite and the thickness of the surface layer on Ti decreased during UV irradiation, which was considered to be contributed to the changes of the surface properties of the titanium composite film. AFM images on the surface of UV-treated titanium native oxide films present a less root-mean-square (RMS) roughness and many isolated gains with a size of about 10 nm.

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The photocatalytic removal of bacterial pollutants from drinking water

Cited by 234 publications

References 48 publications

Nanotechnology Solutions for Global Water Challenges

Nanotechnology Solutions for Global Water Challenges

Photocatalytic Degradation of Organic Pollutants: Mechanisms and Kinetics

Spectroscopic ellipsometrical studies of UV irradiation effects on the surface properties of the ultra thin native oxide film on titanium

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