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Underwater superoleophobic and underoil superhydrophobic surface made by liquid-exfoliated MoS2 for on-demand oil-water separation

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Abstract Intrinsic wettability of atomically thin solids has a great impact on science and technology. Herein, the wetting property of liquid-exfoliated molybdenum disulfide (MoS2) was investigated. The prepared MoS2 nanosheets… Click to show full abstract

Abstract Intrinsic wettability of atomically thin solids has a great impact on science and technology. Herein, the wetting property of liquid-exfoliated molybdenum disulfide (MoS2) was investigated. The prepared MoS2 nanosheets can be well dispersed in nonpolar (1,2-dichloroethane and 1-dodecanol) and polar (water-ethanol cosolvent) solvents. Similarly, the MoS2-coated fabric shows excellent underwater superoleophobic and underoil superhydrophobic properties. Taking advantage of the unusual intrinsic wettability, few-layered MoS2 demonstrates the great potential in on-demand oil-water separation.

Keywords: demand oil; water; superoleophobic underoil; underoil superhydrophobic; underwater superoleophobic; liquid exfoliated

Journal Title: Chemical Engineering Journal
Year Published: 2019

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