An ion-induced low-oil-adhesion organic/inorganic hybrid film for stable superoleophobicity in seawater.

Xu, Li-Ping; Zhao, Jing; Su, Bin; Liu, Xueli; Peng, Jitao; Liu, Yibiao; Liu, Hongliang; Yang, Gao et al. · Adv Mater · 2013

basic_science · Level V

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Abstract

Superoleophobicity under seawater: An ion-induced low-oil-adhesion film with underwater superoleophobicity is prepared by a typical layer-by-layer (LBL) method. Under an artificial marine environment with high ion-strength, the prepared polyelectrolytes/AuNPs hybrid film becomes rougher and possesses a higher water ratio, which in turn endows the film with superoleophobicity and low underwater oil adhesion. The as-prepared film shows excellent environmental stability in artificial seawater. This study provides a new strategy for controlling the self-cleaning property and accelerating the development of stable underwater superoleophobic films.