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Cellulose
Erschienen in: Cellulose 2/2018

20.12.2017 | Original Paper

Preparation of magnetic hydrophobic polyvinyl alcohol (PVA)–cellulose nanofiber (CNF) aerogels as effective oil absorbents

verfasst von: Zhaoyang Xu, Xiangdong Jiang, Huan Zhou, Jianyu Li

Erschienen in: Cellulose | Ausgabe 2/2018

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Abstract

Efficient, rapid removal of oil spills on the surface of water is technologically significant for protecting the ecological marine environment. In this work, environmentally friendly, novel, magnetic hydrophobic PVA/CNF aerogels (MHPCA) with ultralow density (13.84 kg m−3), high porosity (> 98%), magnetic responsivity and good mechanical properties were successfully prepared by vacuum freeze-drying PVA/CNF gel followed by a facile silanization reaction and dipping process. The hydrophobic but oleophilic nature of the as-prepared MHPCA (water contact angle over 138°) came from the polysiloxane coated on the fiber surface by the silanization reaction. The MHPCA had excellent oil/water selectivity, with oil absorption capacity as high as 136 g/g being observed. Additionally, the MHPCA exhibited good magnetic response and could absorb oil on the surface of water by magnetic driving. More importantly, the MHPCA showed excellent elasticity after 30 compression-release cycles, which demonstrated the reusability and durability of the super absorbent. The results of this work provide a feasible idea for easily and efficiently removal of oil pollution from the water surface.
Vorheriger Artikel Transformation of Miscanthus and Sorghum cellulose during methane fermentation
Nächster Artikel Neural tissue regeneration by a gabapentin-loaded cellulose acetate/gelatin wet-electrospun scaffold

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Metadaten
Titel
Preparation of magnetic hydrophobic polyvinyl alcohol (PVA)–cellulose nanofiber (CNF) aerogels as effective oil absorbents
verfasst von
Zhaoyang Xu
Xiangdong Jiang
Huan Zhou
Jianyu Li
Publikationsdatum
20.12.2017
Verlag
Springer Netherlands
Erschienen in
Cellulose / Ausgabe 2/2018
Print ISSN: 0969-0239
Elektronische ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-017-1619-9

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