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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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Cite this document: 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, p. 101-113. doi:10.1016/j.cej.2017.05.034
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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

Open Access document in PolyPublie
Subjects: 1800 Génie chimique > 1800 Génie chimique
2000 Science et technologie des matériaux > 2004 Polymères et revêtements
Department: Département de génie chimique
Research Center: Non applicable
Funders: FRQNT
Grant number: 2014-PR-173942
Date Deposited: 03 Oct 2017 14:44
Last Modified: 01 Oct 2019 01:15
PolyPublie URL: https://publications.polymtl.ca/2790/
Document issued by the official publisher
Journal Title: Chemical Engineering Journal (vol. 325)
Publisher: Elsevier
Official URL: https://doi.org/10.1016/j.cej.2017.05.034

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