Abstract
TiO2 shells comprised of single-layer nanocrystallites were synthesised using sulphonated polystyrene (SPS) nanospheres as hard templates. The assembling of titania gel-based particles during the hydrolysation process caused the formation of SPS–titania gel core–shell spheres, the dissolution of SPS and the condensation process by calcination resulting in single-layer crystallites-connected TiO2 shells with a rough surface. The prepared TiO2 shells showed considerable photocatalytic activity on the degradation of Rhodamine B.
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