dc.contributor.author | Wandiga, Shem O | |
dc.date.accessioned | 2015-06-18T09:42:03Z | |
dc.date.available | 2015-06-18T09:42:03Z | |
dc.date.issued | 2014 | |
dc.identifier.citation | journal-of-photocatalysis Original Research Article. ISJN: 3276-7846: Impact Index: 3.56). | en_US |
dc.identifier.uri | http://hdl.handle.net/11295/85119 | |
dc.description | Journal Article | en_US |
dc.description.abstract | Abstract
This work focused on synthesis of Titanium (IV) Oxide and Tungsten (VI) Oxide compos'ite
and testing the composite as a photocatalyst in deactivation of Escherichi coli in water.
Modified wet chemistry method was used and the synthesized nanoparticles calcined at
5750 C, taken through XRay Fluorescence and X-Ray Diffraction. The result showed a
particle size diameter of 18.99nm. The nanoparticles photocatalytic inactivation efficacyof
Escherichia coli in water was tested. 3M Petrifilms from 3M Microbiology Products, U.S.A.,
was used for Escherichia coli colony forming units' counts. ATUV 8W G8 T5 lamp from
PHILIPS emitting between 350-600nm was used as energy source. The catalyst reduced
Escherichia coli count by log 3.415 at an optimum catalyst amount of 0.75 q/L at pH 7.3
using the Chick-Watson model for disinfection kinetics. This work proved that photocatalysis
is a promising technology in water purification with possible and practical opportunities
existing especially for small-scale point-of-use water purification units where potable water
could be treated for disinfection of pathogens or trace priority pollutants remaining in water
distribution network after conventional treatment methods. This work proved that nano
particles can provide solutions in treatment of drinking water especially for poor
communities living in the tropics. | en_US |
dc.language.iso | en | en_US |
dc.title | Photo Catalytic Inactivation of Escherichia coli Using Titanium(IV) Oxide-Tungsten (VI) Oxide Nanoparticies Composite. International Journal of Photocatalysis. P | en_US |
dc.type | Article | en_US |
dc.type.material | en | en_US |