SayIlkan, Funda and Asiltürk, Meltem and Erdemoglu, Sema and Akarsu, Murat and SayIlkan, Hikmet and Erdemoglu, Murat and Arpaç, Ertugrul (2006) Characterization and photocatalytic properties of TiO2-nanosols synthesized by hydrothermal process at low temperature. Materials Letters, 60 (2). 230 - 235.
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Official URL: http://www.sciencedirect.com/science/article/B6TX9...
Transparent nanocrystalline pure anatase titania (nano-TiO2) was synthesized by hydrothermal process at 200 °C. Photocatalytic activity of the nano-TiO2 as in the form of sol was tested for degradation of Methylene Blue (MB) and Reactive Red 120 (RR-120) in aqueous solutions. Structural and physico-chemical properties of the nano-TiO2 were characterized using powder XRD, SEM, BET, FT-IR and elemental analyses. Complete photodegradation of RR-120 was successfully achieved by aid of the nano-TiO2 whereas MB was not degraded, maybe because of reversible color change in nano-TiO2 sol/MB mixture after the UV irradiation was stopped. Potocatalytic activity of the synthesized the nano-TiO2 for degradation of RR-120 was compared with Degussa P-25 at optimum conditions determined for RR-120. It was found that the nano-TiO2 can be repeatedly used with higher photocatalytic activity than Degussa P-25.
|Uncontrolled Keywords:||Nano-titania; Hydrothermal process; Photodegradation; Dye; Transparent sol|
|Subjects:||Material Science > Nanofabrication processes and tools|
Material Science > Nanostructured materials
|Deposited On:||01 Oct 2009 17:50|
|Last Modified:||01 Oct 2009 17:50|
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