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Journal of Materials Science
Erschienen in: Journal of Materials Science 15/2015

01.08.2015 | Original Paper

Superhydrophobic and superoleophilic “sponge-like” aerogels for oil/water separation

verfasst von: Yuxi Yu, Xiaoyun Wu, Jiyu Fang

Erschienen in: Journal of Materials Science | Ausgabe 15/2015

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Abstract

We report a facile approach to synthesize superhydrophobic and superoleophilic “sponge-like” aerogels through sol–gel reaction followed by supercritical drying, in which MTES and DMDES are used as co-precursors, EtOH as a solvent, CTAB as a surfactant, and HCl and NH3·H2O as catalysts. The MTES–DMDES-based aerogels formed at the optimal molar ratio of MTES: DMDES: EtOH: H2O: HCl: NH3·H2O: CTAB at 1.1: 0.9: 6: 12: 2 × 10−3: 2 × 10−3: 0.14 with a low density of 0.0897 g/cm3 show a compression ratio of 80 % under 36.85 kPa stress. They are superhydrophobic and superoleophilic with a water contact angle of 153.6° and an oil contact angle of 0°. We find that the MTES–DMDES-based aerogels show the high adsorption capacity for various kinds of organic liquids and the excellent recyclability in removing oil from water.
Nächster Artikel Comparative investigation of different silane surface functionalizations of fullerene-like WS2

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Metadaten
Titel
Superhydrophobic and superoleophilic “sponge-like” aerogels for oil/water separation
verfasst von
Yuxi Yu
Xiaoyun Wu
Jiyu Fang
Publikationsdatum
01.08.2015
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 15/2015
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-015-9034-9

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