Photocatalytic Activity of Mixed Phase TiO₂ from Microwave-Assisted Synthesis

Abstract:

Photocatalyst is an environmental clean-up material when exposed to light. It can decompose organic compounds, bacteria and fungi as well as foul odors. Titanium dioxide (TiO₂) has long been well known for its powerful photocatalytic activity. However, its properties depend on several factors and synthesis method is one of them. In this work, TiO₂ powders were prepared by three methods, namely microwave-assisted hydrolysis of titanium oxysulfate (TiOSO₄), hydrolysis of TiOSO₄, and also by calcining of TiOSO₄. Photocatalytic activity of the obtained TiO₂ powders were evaluated through the decomposition of methylene blue in comparison with P25 (Degussa). Results showed that the TiO₂ prepared at conditions of microwave 100 watts, irradiation time of 10 min was most effective when compared with the others in this work.

• Periodical: Advanced Materials Research (Volume 664)
• Pages: 661-666
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.664.661
• Online since: February 2013
• Authors: Nuchanaporn Pijarn, Sirithan Jeimsirilers, Supatra Jinawath
• Keywords: Microwave-Assisted Synthesis, Mixed Phase TiO₂, Photocatalytic Activity, Titanium Dioxide (TiO₂)

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