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Fabrication of superhydrophobic cellulose/chitosan composite aerogel for oil/water separation

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Abstract

Superhydrophobic cellulose and chitosan composite aerogel (SCECS) is fabricated through a novel and simple approach for the first time. During the preparation of cellulose and chitosan composite aerogel (CECS), chitosan is selfassemble into number micron-diameter particles on the surface of aerogel, which is similar to the micromorphology of a lotus leaf. Based on the rough surface, CECS is modified by sodium stearate through electrostatic interaction and ion exchange. Water contact angles of 156° are obtained for superhydrophobic aerogel. SCECS can remove various oils from water and with absorption capacities of 10 g/g for oil. Furthermore, the special structure of a non-porous of surface and porous layer of internal is benefit to separate surfactant-stabilized water-in-oil emulsions under gravity.

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Authors and Affiliations

  1. Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Region/Engineering Research Center of Materials-Oriented Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Xinjiang, 832003, PR China

    Guihua Meng, Huili Peng, Jianning Wu, Yixi Wang, Hao Wang, Zhiyong Liu & Xuhong Guo

Authors
  1. Guihua Meng
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  2. Huili Peng
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  3. Jianning Wu
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  4. Yixi Wang
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  5. Hao Wang
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  6. Zhiyong Liu
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  7. Xuhong Guo
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Corresponding author

Correspondence to Zhiyong Liu.

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These authors contribute equally to this work.

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Meng, G., Peng, H., Wu, J. et al. Fabrication of superhydrophobic cellulose/chitosan composite aerogel for oil/water separation. Fibers Polym 18, 706–712 (2017). https://doi.org/10.1007/s12221-017-1099-4

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  • DOI: https://doi.org/10.1007/s12221-017-1099-4

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