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Issue 28, 2017
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Compressible and conductive carbon aerogels from waste paper with exceptional performance for oil/water separation

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Abstract

Carbon aerogels are receiving great attention in academia and industry; however, the preparation of high performance carbon aerogels is challenging. Here, we report the preparation of compressible and conductive carbon aerogels (3C aerogels) from waste paper using a general “oxidation-oven drying-carbonization” method. The 3C aerogels are lightweight (23.6 mg cm−3) and show good electrical conductivity (0.051 S cm−1), high compressibility, superhydrophobicity/superoleophilicity and high oil absorption capacity (33–70 g g−1). The 3C aerogels can also be used for the removal of free oils in water via different approaches. Moreover, the 3C aerogels can be used for efficient gravity-driven separation of surfactant-stabilized water-in-oil emulsions and simultaneous adsorption of soluble organic pollutants in the emulsions, both in the water phase and in the oil phase. The 3C aerogels may also find applications in other fields including sensors and pressure-sensitive electronics. This work opens a new avenue for designing carbon aerogels with exceptional performance for oil/water separation.

Graphical abstract: Compressible and conductive carbon aerogels from waste paper with exceptional performance for oil/water separation

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Publication details

The article was received on 24 Apr 2017, accepted on 19 Jun 2017 and first published on 20 Jun 2017


Article type: Paper
DOI: 10.1039/C7TA03511J
Citation: J. Mater. Chem. A, 2017,5, 14858-14864
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    Compressible and conductive carbon aerogels from waste paper with exceptional performance for oil/water separation

    L. Li, B. Li, H. Sun and J. Zhang, J. Mater. Chem. A, 2017, 5, 14858
    DOI: 10.1039/C7TA03511J

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