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Full range of wettability through surface modification of single-wall carbon nanotubes by photo-initiated chemical vapour deposition

Seyedehsan Hosseininasab, Nathalie Faucheux, Gervais Soucy and Jason Robert Tavares

Article (2017)

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Abstract

Single-wall carbon nanotubes (SWCNTs) have various remarkable properties, which make them a promising candidate for many applications. However, their inherent hydrophobicity has limited their commercial use in optical, biological, and electrical applications. Photo-initiated chemical vapour deposition (PICVD) using syngas is proposed as a novel, affordable, and versatile method to tailor SWCNT wettability through the addition of oxygen-containing functional groups. Following PICVD surface treatment, X-ray photoelectron spectroscopy, water contact angle measurements (CA), thermogravimetric analysis, Raman spectroscopy and transmission electron microscopy confirm controlled oxygenation of the SWCNT surface. Indeed, this novel approach allows to reproducibly make SWCNTs having surfaces properties ranging from superhydrophilic (CA < 5°) to superhydrophobic (CA > 150°), including any intermediate values, by simply varying operational parameters such as molar ratio of the syngas precursor, photo-polymerization time and reactor pressure (about normal conditions).

Uncontrolled Keywords

PICVD, Surface modification, Oxygen functional group, Superhydrophilic, Superhydrophobic

Additional Information: Titre du manuscrit: Full Range of Wettability through Surface Modification of Single-Wall Carbon Nanotubes by Syngas Photo-Initiated Chemical Vapor Deposition
Subjects: 1800 Chemical engineering > 1800 Chemical engineering
2000 Materials science and technology > 2004 Polymers and coatings
Department: Department of Chemical Engineering
Funders: FRQNT
Grant number: 2014-PR-173942
PolyPublie URL: https://publications.polymtl.ca/2790/
Journal Title: Chemical Engineering Journal (vol. 325)
Publisher: Elsevier
DOI: 10.1016/j.cej.2017.05.034
Official URL: https://doi.org/10.1016/j.cej.2017.05.034
Date Deposited: 03 Oct 2017 14:44
Last Modified: 23 May 2023 12:59
Cite in APA 7: Hosseininasab, S., Faucheux, N., Soucy, G., & Tavares, J. R. (2017). Full range of wettability through surface modification of single-wall carbon nanotubes by photo-initiated chemical vapour deposition. Chemical Engineering Journal, 325, 101-113. https://doi.org/10.1016/j.cej.2017.05.034

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