Synthesis method for crystalline hollow titania micron-cubes
Publication date
2016-09-05
Authors
Castillo, S.I.R.
Krans, N. A.
Pompe, C.E.
den Otter, J.H.
Thies - Weesie, Dominique
Philipse, Albert P.
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Advisors
Supervisors
Document Type
Article
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taverne
Abstract
We report the synthesis of novel micron-sized titania cubes comprising a hematite core and a titania shell. Single core particles are entirely coated with a homogeneous titania shell of tunable thickness. Our convenient and straightforward synthesis method is mediated by the surfactant cetyltrimethylammonium bromide (CTAB) and proceeds under ambient conditions. Subsequent calcination transforms the amorphous titania shell to anatase/rutile titania; dissolution of the hematite core eventually results in hollow porous titania cubes. The resulting core–shell and hollow titania cubes display the tendency to align face-to-face, indicating their potential for utilization in close-packed arrays.
Keywords
Anatase titania, Core–shell, Cubes, Cubic colloids, Rutile titania, cetrimide, ferric oxide, nitrogen, titanium dioxide, article, crystal, morphology, particle size, priority journal, scanning electron microscopy, surface property, synthesis, thickness, transmission electron microscopy, X ray powder diffraction, Taverne
Citation
Castillo, S I R, Krans, N A, Pompe, C E, den Otter, J H, Thies-Weesie, D M E & Philipse, A P 2016, 'Synthesis method for crystalline hollow titania micron-cubes', Colloids and surfaces. A, physicochemical and engineering aspects, vol. 504, pp. 228-233. https://doi.org/10.1016/j.colsurfa.2016.05.079