Journal
PLASMA PROCESSES AND POLYMERS
Volume 11, Issue 2, Pages 164-174Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ppap.201300112
Keywords
nanocomposites; nanowires; superhydrophobic; titanium dioxide; wettability
Funding
- Junta de Andalucia [P09-CTS-5189, TEP5283, FQM-6900]
- Ministry of Economy and Competitiveness [CONSOLIDER CSD2008-00023, MAT2010-21228, MAT2010-18447]
- EU [REGPOT-CT-2011-285895-Al-NANOFUNC]
- Abengoa Research S. L.
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This work reports the low temperature plasma formation of Ag@TiO2 nanorods (NRs) on processable substrates. The layers have been analyzed by electron microscopy and secondary ion mass spectroscopy. The NRs morphologies suggest that the plasma sheath, the high mobility of the silver and the incoming direction of the precursor moieties are key factors determining their shape, dimensions, and tilting orientation. Both amorphous and anatase Ag@TiO2 NRs surfaces are superhydrophobic, and turn into superhydrophilic by irradiation with UV light. This wetting behavior is discussed by considering the water penetration in the inter-NR space during the light-mediated transformation.
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