Protonated cross-linkable nanocomposite coatings with outstanding underwater superoleophobic and anti-viscous oil-fouling properties for crude oil/water separation

Su，Xiaojing1; Huang，Shengqi1; Wu，Wenjian1; Li，Kunquan1; Xie，Huali1; Wu，Yunhui1; Zhang，Xiaofan1; Xie，Xin2

2022-08-15

10.1016/j.jhazmat.2022.129129

JOURNAL OF HAZARDOUS MATERIALS   影响因子和分区

0304-3894

1873-3336

Superhydrophilic/underwater superoleophobic coatings that effectively prevent viscous oil contamination have been of considerable interest for the great potential in oil spill remediation and oilfield wastewater treatment. In the present work, a protonated cross-linkable nanocomposite coating with robust underwater superoleophobicity and intensified hydration capability is proposed through the synthesis of active polymeric nanocomplex (PNC), cross-linking reaction between PNC and hydrophilic chitosan (CS), and final protonation to further improve water affinity. Benefiting from the hierarchical structure and strong hydration capability induced by electrostatic interactions and hydrogen bondings, the nanocomposite coating coated textile exhibits excellent superhydrophilicity (within 0.28 s with water contact angle reaching 0°), underwater superoleophobicity (underwater crude oil contact angle at 160°), and ultralow oil adhesion even to highly viscous silicone oil. Moreover, the nanocomposite coating presents a robust chemical resistance, mechanical tolerance, and storage stability. Simultaneously, the nanocomposite coating adapts well to various porous substrates (e.g., stainless steel mesh and Ni sponge) with great anti-oil-fouling and self-cleaning performances. Importantly, the coating coated textile is successfully applied in crude oil/water separation with excellent efficiency and repeatability. The findings conceivably stand out as a new methodology to fabricate superhydrophilic/underwater superoleophobic materials with outstanding anti-viscous oil-fouling property for practically treating oily wastewater.

Anti-viscous oil-fouling Cross-linkable nanocomposite coating Crude oil/water separation Protonation Underwater superoleophobicity

SCI ; EI

英语

其他

Basic and Applied Basic Research Foundation of Guangdong Province[2019A1515110343];Basic and Applied Basic Research Foundation of Guangdong Province[2021A1515110203];National Natural Science Foundation of China[51903059];

Engineering ; Environmental Sciences & Ecology

Engineering, Environmental ; Environmental Sciences

WOS:000806211100006

ELSEVIER

20222112131622

Chemical stability ; Contact angle ; Crosslinking ; Effluents ; Hydration ; Hydrogen bonds ; Hydrophobicity ; Molecular weight ; Nanocomposites ; Oil spills ; Polyurethanes ; Separation ; Textiles ; Wastewater treatment

Industrial Wastes:452.3 ; Industrial Wastes Treatment and Disposal:452.4 ; Water Pollution Sources:453.1 ; Nanotechnology:761 ; Chemistry:801 ; Physical Chemistry:801.4 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Organic Polymers:815.1.1 ; Synthetic and Natural Fibers; Textile Technology:819 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Atomic and Molecular Physics:931.3 ; Solid State Physics:933

ENGINEERING

2-s2.0-85130191194

Scopus

1.School of Materials Science and Engineering,Dongguan University of Technology,Dongguan,523808,China
2.The First Affiliated Hospital (Shenzhen People's Hospital),Southern University of Science and Technology,Shenzhen,518055,China

Su，Xiaojing,Huang，Shengqi,Wu，Wenjian,et al. Protonated cross-linkable nanocomposite coatings with outstanding underwater superoleophobic and anti-viscous oil-fouling properties for crude oil/water separation[J]. JOURNAL OF HAZARDOUS MATERIALS,2022,436.

Su，Xiaojing.,Huang，Shengqi.,Wu，Wenjian.,Li，Kunquan.,Xie，Huali.,...&Xie，Xin.(2022).Protonated cross-linkable nanocomposite coatings with outstanding underwater superoleophobic and anti-viscous oil-fouling properties for crude oil/water separation.JOURNAL OF HAZARDOUS MATERIALS,436.

Su，Xiaojing,et al."Protonated cross-linkable nanocomposite coatings with outstanding underwater superoleophobic and anti-viscous oil-fouling properties for crude oil/water separation".JOURNAL OF HAZARDOUS MATERIALS 436(2022).