Reversible Tuning of the Wettability of Carbon Nanotube Arrays: The Effect of Ultraviolet/Ozone and Vacuum Pyrolysis Treatments
- 14 June 2011
- journal article
- Published by American Chemical Society (ACS) in Langmuir
- Vol. 27 (14), 9005-9011
- https://doi.org/10.1021/la201841m
Abstract
Among diverse types of synthetic materials, arrays of vertically aligned carbon nanotubes have attracted the most attention, mainly because of their exceptional mechanical, electrical, optical, and thermal properties. However, their wetting properties are yet to be understood. In this present study, oxygenated surface functional groups have been identified as a vital factor in controlling the wetting properties of carbon nanotube arrays. The results presented herein indeed show that a combination of ultraviolet/ozone and vacuum pyrolysis treatments can be used to vary the surface concentration of these functional groups such that the carbon nanotube array can be repeatedly switched between hydrophilic and hydrophobic.Keywords
This publication has 30 references indexed in Scilit:
- Tunable wetting properties of patterned silicon microchannels with varied surface free energy based on layer-by-layer nano self-assemblyJournal of Micromechanics and Microengineering, 2011
- High-power lithium batteries from functionalized carbon-nanotube electrodesNature Nanotechnology, 2010
- Slip on Superhydrophobic SurfacesAnnual Review of Fluid Mechanics, 2010
- The role of nano-roughness in antifoulingBiofouling, 2009
- Micro-, nano- and hierarchical structures for superhydrophobicity, self-cleaning and low adhesionPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2009
- A Commercially Available Perfectly Hydrophobic Material (θA/θR = 180°/180°)Langmuir, 2007
- A Perfectly Hydrophobic Surface (θA/θR = 180°/180°)Journal of the American Chemical Society, 2006
- From Rolling Ball to Complete Wetting: The Dynamic Tuning of Liquids on Nanostructured SurfacesLangmuir, 2004
- Very strong hydrogen bondingChemical Society Reviews, 1980
- RESISTANCE OF SOLID SURFACES TO WETTING BY WATERIndustrial & Engineering Chemistry, 1936