Laponite-supported titania photocatalysts
Daniel, Lisa Maree (2007) Laponite-supported titania photocatalysts. .
|Lisa Daniel Thesis (PDF 2MB) |
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This thesis describes the synthesis and characterisation of titania photocatalysts for incorporation into a polyethylene film. Monodisperse, anatase-phase titania nanoparticles are prepared and the synthesis conditions necessary for attraction to a laponite clay support are determined. Methods of preventing agglomeration of the laponite system such as the use of a polyethylene oxide surfactant or chemical modification of the laponite plate edges with a dimethyloctyl methoxysilane are also explored. Finally, photocatalytic studies on the laponite-supported titania nanoparticles are performed, and the compatibility and photoactivity of these materials in the polyethylene film are examined.
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|Item Type:||QUT Thesis (Masters by Research)|
|Supervisor:||Frost, Raymond& Zhu, Huai|
|Keywords:||Titania, titanium dioxide, anatase, photoactivity, photocatalyst, clay, colloid, hydrothermal treatment, laponite, surfactant, silane, silylation, edge-modification, X-ray diffraction, polymer degradation, transmission electron microscopy, infrared emission spectroscopy, attenuated total reflectance infrared spectroscopy, BET N2 sorption, thermogravimetric analysis, 29Si Nuclear magnetic Resonance Spectroscopy|
|Department:||Faculty of Science|
|Institution:||Queensland University of Technology|
|Copyright Owner:||Copyright Lisa Maree Daniel|
|Deposited On:||03 Dec 2008 14:08|
|Last Modified:||29 Oct 2011 05:50|
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