Nanotechnology 2011-04-15

Isotropic photo-decomposition of spherical organic polymers on rutile TiO₂(110) surfaces.

Nobuyuki Ishida, Tamaki Iwasaki, Daisuke Fujita

Index: Nanotechnology 22(15) , 155705, (2011)

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Abstract

We observed the photo-decomposition process of polystyrene latex (PSL) spheres on a rutile TiO₂(110) single crystal surface by using atomic force microscopy. During the decomposition process, both the height and width of the PSL spheres linearly decreased with the irradiation time in a similar way from the beginning, suggesting that the PSL spheres are isotropically decomposed. This indicates that the interface between the PSL spheres and the TiO₂ surface is not a dominant reaction site, as expected from normal photocatalytic reactions.

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