Highly Active Rutile TiO2Nanocrystalline Photocatalysts

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Abstract

The controllable synthesis of rutile TiO2 single crystal particles with the preferential orientation of {111} facets still remains a scientific and technological challenge. Here, we developed a facile route for fabrication of rutile TiO2 nanorod crystals (RTiO2NRs) having high ratios of oxidative {111} to reductive {110} surfaces. RTiO2NRs were synthesized using a peroxo-titanium complex (PTC) approach, which was controlled by changing the Ti/H2O2 ratio. The thus obtained RTiO2NRs revealed a high tendency to agglomerate through orientation-dependent attachment along the {110} facets. This resulted in an increased {111}/{110} surface ratio and led to a markedly improved photocatalytic activity of RTiO2NR aggregates. The reported findings illustrate the rich potential of the herein proposed facile and energy-efficient synthesis of nanostructured rutile TiO2-based photocatalysts.

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Djokić, V. R., Marinković, A. D., Petrović, R. D., Ersen, O., Zafeiratos, S., Mitrić, M., … Janaćković, D. T. (2020). Highly Active Rutile TiO2Nanocrystalline Photocatalysts. ACS Applied Materials and Interfaces, 12(29), 33058–33068. https://doi.org/10.1021/acsami.0c03150

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