Issue 19, 2012

Stable superhydrophobic coatings from thiol-ligandnanocrystals and their application in oil/water separation

Abstract

Stable superhydrophobic coatings were successfully achieved from thiol-ligand nanocrystals. Nanocrystals included VIII and IB metals and oxide nanoparticles, such as Fe, Co, Ni, Cu and Ag. We present a simple and available method that facilitates the synthesis of superhydrophobic textiles and sponges, in which the interaction between the nanocrystals and thiol plays a significant role in the formation of a special wetting surface. Meanwhile, the superhydrophobic textiles could also be endowed with new functionalities. For example, textiles with Fe3O4 nanocoatings possess magnetic properties, and Ag nanocrystals provide an antibacterial effect. If perfluoroalkyl thiol was used to replace alkyl thiol, the as-modified surfaces became oleophobic from superoleophilic. The proposed strategy was fit for various nanoparticles from as-established methods, including the preparation in different polar solvents, and the usage of surfactants as capping agents. As-prepared superhydrophobic nanocoatings show good durability towards hot water, surfactant aqueous solutions, and ultrasonic treatment in nonpolar solvents. The superhydrophobic and superoleophilic nanocoatings were effectively used for application in oil/water separation.

Graphical abstract: Stable superhydrophobic coatings from thiol-ligand nanocrystals and their application in oil/water separation

Supplementary files

Article information

Article type
Paper
Submitted
15 Feb 2012
Accepted
20 Mar 2012
First published
20 Mar 2012

J. Mater. Chem., 2012,22, 9774-9781

Stable superhydrophobic coatings from thiol-ligand nanocrystals and their application in oil/water separation

J. Li, L. Shi, Y. Chen, Y. Zhang, Z. Guo, B. Su and W. Liu, J. Mater. Chem., 2012, 22, 9774 DOI: 10.1039/C2JM30931A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements