Article history: With oil spill accidents and oil industrial wastewater increasing, oil/water separation has attracted Received 13 April 2017 much attention in recent years. Herein, we report the fabrication of superhydrophilic and underwa- Received in revised form 2 August 2017 ter superoleophobic thiol-ene/silica hybrid decorated fabrics for oil/water separation via vapor-liquid Accepted 2 August 2017 interfacial reaction. It is based on sol-gel reaction of tetraethyl orthosilicate (TEOS) to generate silica Available online 5 August 2017 and thiol-ene reaction between poly(ethylene glycol) dimethacrylate (PEGDMA) and trimethylolpropane tris(3-mercaptopropionate) (TTMP) to form crosslinked hydrophilic polymer on polyester fabric under Keywords: the catalysis of butylamine/ammonia vapor. The chemical structure of the surfaces on thiol-ene/silica Superhydrophilic hybrid decorated fabric was conﬁrmed by FTIR and XPS, and obvious micro-nano morphology and rough- Underwater superoleophobic ness were observed with SEM and AFM. The water contact angle of the fabric attained 0 in 0.36 s, and Fabrics the underwater oil contact angle reached up to 160 . Importantly, the fabric exhibited high separation Vapor-liquid interfacial reaction −2 −1 Oil/water separation efﬁciency at 99.5%, fast water ﬂux above 71600 Lm h and excellent recyclability in oil/water sepa- ration. Our ﬁndings open a new strategy to fabricate organic-inorganic hybrid
Applied Surface Science – Elsevier
Published: Jan 1, 2018
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