title: One-Step Coating toward Multifunctional Applications: Oil/Water Mixtures and Emulsions Separation and Contaminants Adsorption.
abstract: Here, a method that can simultaneously separate oil/water mixtures and remove water-soluble contaminants has been developed. Various substrates with different pore size were coated by polydopamine and polyethylenepolyamine codeposition films. The as-prepared materials were superhydrophilic and under-water superoleophobic. The materials can separate a range of different oil/water mixtures (including immiscible oil/water mixtures and surfactant-stabilized emulsions) in a single unit operation, with >99.6% separation efficiency and high fluxes. Copper ion and methyl blue can be effectively absorbed from water when it permeates through the materials. This method can be applied on organic and inorganic substrates and used in preparing large-scale product. Therefore, the simple and facile method has excellent potential in practical application and creates a new field for oil/water separation materials with multifunctional applications.
authors.affiliation: Department of Chemistry, Tsinghua University , Beijing, 100084, China.|Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology , Beijing, 100094', China.
authors.forename: Yingze
authors.initials: Y
authors.lastname: Cao
authors.affiliation: Department of Chemistry, Tsinghua University , Beijing, 100084, China.
authors.forename: Na
authors.initials: N
authors.lastname: Liu
authors.affiliation: Department of Chemistry, Tsinghua University , Beijing, 100084, China.
authors.forename: Weifeng
authors.initials: W
authors.lastname: Zhang
authors.affiliation: Department of Chemistry, Tsinghua University , Beijing, 100084, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Feng
authors.affiliation: Department of Chemistry, Tsinghua University , Beijing, 100084, China.
authors.forename: Yen
authors.initials: Y
authors.lastname: Wei
keywords: contaminants adsorption; emulsion separation; mussel-inspired chemistry; oil/water separation; special wettability