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This work presents an experimental study on the specific quantitative contributions of antireflective and effective surface areas on the photocatalytic and antibacterial properties of rutile TiO2 nanospikes. They are studied when continuously distributed over the whole surface and when integrated into well-defined microstructures. The nanospikes were produced following MeV ion beam irradiation of bulk rutile TiO2 single crystals and subsequent chemical etching. The ion beam irradiation generated embedded isolated crystalline nanoparticles inside an etchable amorphous TiO2 layer, and nanospikes fixed to the not etchable TiO2 bulk substrate. The produced nanospikes are shown to resist towards aggressive chemical environments and act as an efficient UV antireflective surface. The photocatalytic activity experiments were performed under the ISO 10678:2010 protocol. The photonic and quantum efficiency are …
AIP Publishing
Publication date: 
21 Feb 2015

Ruy Sanz, Lucia Romano, Massimo Zimbone, Maria Antonietta Buccheri, Viviana Scuderi, Giuliana Impellizzeri, Mario Scuderi, Giuseppe Nicotra, Jens Jensen, Vittorio Privitera

Biblio References: 
Volume: 117 Issue: 7 Pages: 074903
Journal of Applied Physics