Hemispherical and Columnar TiO2 Arrays Grown by Reactive Pulsed Laser Deposition for Photocatalytic Applications

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Hemispherical and columnar TiO2 array were produced by reactive pulsed laser deposition (PLD) using self‐assembled polystyrene (PS) monolayers as templates. The integration of PS microspheres self‐assembly processes and PLD permits the creation of periodic arrays in hexagonal arrangement. The micro/nano array architecture demonstrates outstanding catalytic performance in the degradation of methylene blue dye in aqueous solution. The obtained results suggest that besides other structural characteristics the large specific surface area plays an essential role in the improvement of photoactivity of oxide semiconductor catalyst.

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1551-2916.2012.05270.x

Publication date: September 1, 2012

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