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2012, Volume 6, Issue 1

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Frontiers of Chemical Science and Engineering >> 2012, Volume 6, Issue 1 doi: 10.1007/s11705-011-1144-6

Fabrication, modification and environmental applications of TiO

Department of Chemical and Biochemical Engineering, The University of Western Ontario, London N6A 5B9, Canada

Available online: 2012-03-05
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Abstract

Among the semiconductors, titanium dioxide has been identified as an effective photocatalyst due to its abundance, low cost, stability, and superior electronic energy band structure. Highly ordered nanotube arrays of titania were produced by anodization and mild sonication. The band gap energy of the titania nanotube arrays was reduced to 2.6 eV by co-doping with Fe, C, N atoms using an electrolyte solution containing K Fe(CN) . The photoconversion of phenol in a batch photoreactor increased to more than 18% based on the initial concentration of phenol by using a composite nanomaterial consisting of titania nanotube arrays and Pt/ZIF-8 nanoparticles. A layer-by-layer assembly technique for the deposition of titania nanoparticles was developed to fabricate air filters for the degradation of trace amounts of toluene in the air and preparation of superhyrophobic surfaces for oil-water separation and anti-corrosion surfaces.

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