Sustainable preparation of graphene-like hybrid nanomaterials and their application for organic dyes removal

Samia Mahouche-Chergui, Zakariae Boussaboun, Abdallah Oun, Maryam Kazembeyki, Christian G. Hoover, Benjamin Carbonnier, Claudiane M. Ouellet-Plamondon

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Graphene-like hybrid nanomaterials (GHNs) were successfully synthesized through a sustainable and solvent-free method. Sucrose and bentonite renewable precursors were used as a carbon source and a template, respectively. The characterization of GHN by Raman nanoscale spectroscopy and X-ray photoelectron spectroscopy (XPS) confirmed the successful transformation of sucrose to sp2-hybridized carbon as in graphene. The high-resolution transmission electron microscopy (HR-TEM) analysis evidenced the formation of a hybrid nanomaterial in a well-defined layered structure. The nanoindentation studies show that the modulus of the pyrolyzed sugar was 4 GPa, while it was 28 GPa for the graphene layer synthetized with this procedure. These hybrid nanomaterials were evaluated as an adsorbent for the removal of both cationic (rhodamine B and methylene blue dyes) and anionic (methyl orange) organic water pollutants at 9.5–10 mg/g. These stiffer GHN increase the resilience, durability, and sustainability of the clay particles for treatment processes.

Original languageEnglish (US)
Article number116482
JournalChemical Engineering Science
Volume236
DOIs
StatePublished - Jun 8 2021

Keywords

  • Graphene
  • Graphene-bentonite hybrid nanomaterial
  • Nanoindentation
  • Pollutants removal
  • Renewable precursors

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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