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Communication Dans Un Congrès Année : 2023

3D graphene-based architectures for environmental applications

Claudia de Melo
Jean-François Pierson
Sylvie Migot
Melanie Emo
Abdul Rahman Mohamed
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Brigitte Vigolo

Résumé

A new class of graphene-inorganic hybrid materials has been developed in recent years by combining graphene with metal-based compounds, especially metal oxides. As part of this research, we performed a comprehensive analysis on the modification of 3D graphene-based macrostructures (GBMs) as well as the investigation of their structural properties. Initially, 3D GBMs were prepared through vitamin C reduction, and further modified by atomic layer deposition (ALD) of alumina. The as-prepared 3D GBMs hybrid were also employed in tests of dye removal. Our research also presents a well-controlled method for preparing highly porous alumina that has not previously been reported, as well as a comprehensive analysis of the graphene-alumina hybrid material by means of high-resolution transmission electron microscopy performed on thin foil lamellas prepared by using focused ion beams. In conclusion, modified 3D GBM hybrid adsorbents improve dye adsorption isotherms significantly, and the potential mechanism involved is discussed.

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Chimie
Abstract_ 3D graphene hybrid_HOPE meeting_Firdaus.docx (22.66 Ko) Télécharger le fichier
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Dates et versions

hal-04281259 , version 1 (12-11-2023)

Identifiants

  • HAL Id : hal-04281259 , version 1

Citer

Rabita Mohd Firdaus, Claudia de Melo, Jean-François Pierson, Sylvie Migot, Melanie Emo, et al.. 3D graphene-based architectures for environmental applications. HOPE Meetings with Nobel Laureates, Feb 2023, Tsukuba, Japan. ⟨hal-04281259⟩
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