Jump to main content
Jump to site search

Issue 15, 2017
Previous Article Next Article

A facile modification of steel mesh for oil–water separation

Author affiliations


The development of a superhydrophobic and superoleophilic steel mesh surface, which is durable and regenerable under aggressive conditions, has raised tremendous interest in oil–water separation applications. In this work, via a facile chemical etching method using a mixture of hydrochloric acid and nitric acid followed by treatment with lauric acid, a superhydrophobic and superoleophilic steel mesh surface was synthesized. The surface morphology analysis shows the presence of rough microstructures on the coated steel mesh surface. The coated mesh exhibited superhydrophobicity, with a water contact angle of 171 ± 4.5° and a sliding angle of 4 ± 0.5°, and superoleophilicity, with an oil static contact angle of about 0°, that caused water to run off the mesh while allowing oil to permeate through it. Petroleum ether–water and benzene–water mixtures were successfully separated via a simple filtering method using the coated mesh with a separation efficiency of more than 99%. Additionally, the coating was found to be mechanically, thermally and chemically stable and regenerable. Furthermore, the water-drop impact dynamics for the coated mesh surface were also studied. The aforementioned properties of the durable coated steel mesh show that it is a good candidate for facile, fast, and repeatable oil–water separation applications.

Graphical abstract: A facile modification of steel mesh for oil–water separation

Back to tab navigation

Publication details

The article was received on 20 Apr 2017, accepted on 22 Jun 2017 and first published on 22 Jun 2017

Article type: Paper
DOI: 10.1039/C7NJ01265A
Citation: New J. Chem., 2017,41, 7463-7471
  •   Request permissions

    A facile modification of steel mesh for oil–water separation

    P. Varshney, D. Nanda, M. Satapathy, S. S. Mohapatra and A. Kumar, New J. Chem., 2017, 41, 7463
    DOI: 10.1039/C7NJ01265A

Search articles by author