Jump to main content
Jump to site search

Issue 43, 2013
Previous Article Next Article

Synthesis of a multifunctional graphene–carbon nanotube aerogel and its strong adsorption of lead from aqueous solution

Author affiliations

Abstract

Mechanically enhanced aerogels of graphene sheets and carbon nanotubes (CNTs) were prepared via hydrothermal reduction of graphene oxide and CNTs in the presence of ferrous ions (FeSO4 solution). The resultant graphene–CNT aerogels possess a 3-D network of carbon structures containing micro-sized pores and α-FeOOH nanorods within the matrix. The CNTs may act as a scaffold in the aerogels to resist compressive stress and prevent them from collapse. The aerogels have very low density (0.011–0.087 g cm−3), depending on the amount of ferrous ions used in the synthesis. In addition, the aerogels also have excellent mechanical properties with elastic modulus between 0.011 and 0.29 MPa. Because of their porous structures, the graphene–CNTs aerogels showed excellent removal ability to aqueous lead with rates between 230 and 451 mg g−1 and thus could be potentially used as a promising adsorbent for many environmental applications.

Graphical abstract: Synthesis of a multifunctional graphene–carbon nanotube aerogel and its strong adsorption of lead from aqueous solution

Back to tab navigation

Publication details

The article was received on 13 Aug 2013, accepted on 02 Sep 2013 and first published on 02 Sep 2013


Article type: Paper
DOI: 10.1039/C3RA44340J
Citation: RSC Adv., 2013,3, 21099-21105
  •   Request permissions

    Synthesis of a multifunctional graphene–carbon nanotube aerogel and its strong adsorption of lead from aqueous solution

    M. Zhang, B. Gao, X. Cao and L. Yang, RSC Adv., 2013, 3, 21099
    DOI: 10.1039/C3RA44340J

Search articles by author

Spotlight

Advertisements