Issue 48, 2014

Photoresponsive superhydrophobic surfaces from one-pot solution spin coating mediated by polydopamine

Abstract

Smart stimuli-responsive superhydrophobic surfaces with reversibly switchable wettability have received considerable attention due to their various potential applications. We demonstrate here a new but versatile approach for preparing photoresponsive superhydrophobic surfaces. Fluorinated azobenzene derivatives or polymers are immobilized onto silica surface by taking advantage of the remarkable adhesive ability of polydopamine. By simply spin coating the silica particles onto silicon wafer, superhydrophobic surfaces can be obtained with a water contact angle greater than 150° and low contact angle hysteresis (<10°). In addition, reversible change water contact angles on the surfaces can occur upon irradiation with alternate UV and visible light.

Graphical abstract: Photoresponsive superhydrophobic surfaces from one-pot solution spin coating mediated by polydopamine

Supplementary files

Article information

Article type
Paper
Submitted
17 Apr 2014
Accepted
16 May 2014
First published
29 May 2014

RSC Adv., 2014,4, 24973-24977

Photoresponsive superhydrophobic surfaces from one-pot solution spin coating mediated by polydopamine

J. Zhang, W. Zhang, N. Zhou, Y. Weng and Z. Hu, RSC Adv., 2014, 4, 24973 DOI: 10.1039/C4RA03469D

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