Superhydrophobic fabrics for oil-water separation based on the metal organic charge transfer complex CuTCNAQ

O'Mullane, Anthony Peter, Hoshyargar, Faegheh, Mahajan, Manika, Anuradha, -, Bhosale, Sheshanath V., Kyratzis, Louis, & Bhatt, Anand I. (2016) Superhydrophobic fabrics for oil-water separation based on the metal organic charge transfer complex CuTCNAQ. ChemPlusChem, 81(4), pp. 378-383.

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Abstract

This work reports on the fabrication of a superhydrophobic nylon textile based on the organic charge transfer complex CuTCNAQ (TCNAQ = 11,11,12,12-tetracyanoanthraquinodimethane). The nylon fabric that is metallized with copper undergoes a spontaneous chemical reaction with TCNAQ dissolved in acetonitrile to form nanorods of CuTCNAQ that are intertwined over the entire surface of the fabric. This creates the necessary micro and nanoscale roughness that is required for the Cassie-Baxter state thereby achieving a superhydrophobic/superoleophilic surface without the need for a fluorinated surface. The material is characterised with SEM, FT-IR and XPS spectroscopy and investigated for its ability to separate oil and water in two modes, namely under gravity and as an absorbent. It is found that the fabric can separate dichloromethane, olive oil and crude oil from water and in fact reduce the water content of the oil during the separation process. The fabric is reusable and tolerant to conditions such as seawater, hydrochloric acid and extensive time periods on the shelf. Given that CuTCNAQ is a copper based semiconductor may also open up the possibility of other applications in areas such as photocatalysis and antibacterial applications.

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ID Code: 93123
Item Type: Journal Article
Refereed: Yes
Keywords: CuTCNAQ, Superhydrophobic, oil-water separation, nanostructures, organic semiconductors
DOI: 10.1002/cplu.201600021
ISSN: 2192-6506
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Funding:
Facilities: Central Analytical Research Facility
Copyright Owner: Copyright 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Deposited On: 22 Feb 2016 05:06
Last Modified: 01 Jun 2016 02:31

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