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Superhydrophobic Mesoporous Graphene for Separation and Absorption

Authors

  • Dr. Zong-Liang Fan,

    1. State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Key Laboratory of Non-ferrous Metal Alloys and Processing, Ministry of Education, College of Petrochemical Technology, Lanzhou University of Technology, 287 Langongping Road, Lanzhou 730050 (P. R. China)
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  • Xiao-Juan Qin,

    1. State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Key Laboratory of Non-ferrous Metal Alloys and Processing, Ministry of Education, College of Petrochemical Technology, Lanzhou University of Technology, 287 Langongping Road, Lanzhou 730050 (P. R. China)
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  • Han-Xue Sun,

    1. State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Key Laboratory of Non-ferrous Metal Alloys and Processing, Ministry of Education, College of Petrochemical Technology, Lanzhou University of Technology, 287 Langongping Road, Lanzhou 730050 (P. R. China)
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  • Zhao-Qi Zhu,

    1. State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Key Laboratory of Non-ferrous Metal Alloys and Processing, Ministry of Education, College of Petrochemical Technology, Lanzhou University of Technology, 287 Langongping Road, Lanzhou 730050 (P. R. China)
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  • Chun-juan Pei,

    1. State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Key Laboratory of Non-ferrous Metal Alloys and Processing, Ministry of Education, College of Petrochemical Technology, Lanzhou University of Technology, 287 Langongping Road, Lanzhou 730050 (P. R. China)
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  • Wei-Dong Liang,

    1. State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Key Laboratory of Non-ferrous Metal Alloys and Processing, Ministry of Education, College of Petrochemical Technology, Lanzhou University of Technology, 287 Langongping Road, Lanzhou 730050 (P. R. China)
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  • Xue-Mei Bao,

    1. State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Key Laboratory of Non-ferrous Metal Alloys and Processing, Ministry of Education, College of Petrochemical Technology, Lanzhou University of Technology, 287 Langongping Road, Lanzhou 730050 (P. R. China)
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  • Jin An,

    1. State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Key Laboratory of Non-ferrous Metal Alloys and Processing, Ministry of Education, College of Petrochemical Technology, Lanzhou University of Technology, 287 Langongping Road, Lanzhou 730050 (P. R. China)
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  • Prof. Pei-Qing La,

    1. State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Key Laboratory of Non-ferrous Metal Alloys and Processing, Ministry of Education, College of Petrochemical Technology, Lanzhou University of Technology, 287 Langongping Road, Lanzhou 730050 (P. R. China)
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  • Prof. An Li,

    Corresponding author
    1. State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Key Laboratory of Non-ferrous Metal Alloys and Processing, Ministry of Education, College of Petrochemical Technology, Lanzhou University of Technology, 287 Langongping Road, Lanzhou 730050 (P. R. China)
    • An Li, State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Key Laboratory of Non-ferrous Metal Alloys and Processing, Ministry of Education, College of Petrochemical Technology, Lanzhou University of Technology, 287 Langongping Road, Lanzhou 730050 (P. R. China)

      Wei-Qiao Deng, State Key Laboratory of Molecular Reaction Dynamics, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023 (P. R. China)

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  • Prof. Wei-Qiao Deng

    Corresponding author
    1. State Key Laboratory of Molecular Reaction Dynamics, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023 (P. R. China)
    • An Li, State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Key Laboratory of Non-ferrous Metal Alloys and Processing, Ministry of Education, College of Petrochemical Technology, Lanzhou University of Technology, 287 Langongping Road, Lanzhou 730050 (P. R. China)

      Wei-Qiao Deng, State Key Laboratory of Molecular Reaction Dynamics, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023 (P. R. China)

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Abstract

Mesoporous graphene with a surface area of 306 m2 g−1 was synthesized by employing CaCO3 microspheres as hard templates. By surface modification with polydimethylsiloxane (PDMS) through chemical vapor deposition, the wettability of as-treated mesoporous graphene can be tailored to be superhydrophobic to water while superoleophilic to oils. The deposition of the low-surface-energy silicon-coating originated from PDMS pyrolysis on porous graphene was confirmed by X-ray photoelectron spectroscopy. As a result of its porous structures and excellent surface superhydrophobicity, the PDMS-treated mesoporous graphene exhibits good selectivity, excellent recyclability, and good absorption performance (up to 66 g g−1) for a wide range of oils and organic solvents. Thus, leading to potential use in a variety of applications such as water treatment and purification as well as cleanup of oil spills.

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