Get access

Spongy Graphene as a Highly Efficient and Recyclable Sorbent for Oils and Organic Solvents

Authors

  • Hengchang Bi,

    1. SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing 210096, P. R. China
    Search for more papers by this author
  • Xiao Xie,

    1. SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing 210096, P. R. China
    Search for more papers by this author
  • Kuibo Yin,

    1. SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing 210096, P. R. China
    Search for more papers by this author
  • Yilong Zhou,

    1. SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing 210096, P. R. China
    Search for more papers by this author
  • Shu Wan,

    1. SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing 210096, P. R. China
    Search for more papers by this author
  • Longbing He,

    1. SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing 210096, P. R. China
    Search for more papers by this author
  • Feng Xu,

    1. SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing 210096, P. R. China
    Search for more papers by this author
  • Florian Banhart,

    1. Institut de Physique et Chimie des Matériaux, UMR 7504 CNRS, Université de Strasbourg, 23 rue du Loess, 67034 Strasbourg, France
    Search for more papers by this author
  • Litao Sun,

    Corresponding author
    1. SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing 210096, P. R. China
    • SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing 210096, P. R. China
    Search for more papers by this author
  • Rodney S. Ruoff

    Corresponding author
    1. Department of Mechanical Engineering and Materials and Science Program, The University of Texas at Austin, One University Station C2200, Austin, TX 78712, USA
    • Department of Mechanical Engineering and Materials and Science Program, The University of Texas at Austin, One University Station C2200, Austin, TX 78712, USA.
    Search for more papers by this author

Abstract

In this work, spongy graphene (SG), a shape-mouldable and nanoporous material with a high specific surface area used as a versatile and recyclable sorbent material, is proposed and studied. SG shows highly efficient absorption of not only petroleum products and fats, but also toxic solvents such as toluene and chloroform (up to 86 times of its own weight), requiring no further pretreatment, which is tens of times higher than that of conventional absorbers. Moreover, SG can be regenerated (>10 times) by heat treatment, yielding the full release of adsorbates (>99%). The present work suggests SG a widespread potential for applications in industry as well as topics regarding environmental protection.

Get access to the full text of this article

Ancillary