Preparation of a graphene oxide/faujasite composite adsorbent

Daewoo Kim, He Han, Hanim Kim, Xinwen Guo, Michael Tsapatsis

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Template-free synthesis of faujasite type zeolite was investigated in the presence of graphene oxide (GO) in the synthesis sol. Nano-sized FAU/EMT, nano-sized FAU, and micro-sized FAU can be obtained depending on synthesis conditions such as precursor molar ratios, crystallization temperature, and the use of freeze-drying to alter water content. The obtained GO/Faujasite powder was shaped in the form of a disk by vacuum filtration. The shaped GO/Faujasite powder is electrically conductive (∼0.4 S/m and 2000-3000 Ω/sq), mechanically stable (Young's modulus: ∼7 MPa) and contains micropores, mesopores, and macropores. Furthermore, the GO/Faujasite disk exhibits high methylene blue adsorption capacity and can be regenerated by thermal annealing at 300 °C without significant capacity loss.

Original languageEnglish
Pages (from-to)243-250
Number of pages8
JournalMicroporous and Mesoporous Materials
Volume268
DOIs
Publication statusPublished - 2018 Sep 15

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Graphite
adsorbents
Adsorbents
Oxides
Graphene
graphene
preparation
composite materials
oxides
Composite materials
Powders
synthesis
Zeolites
freeze drying
Methylene Blue
methylene blue
Polymethyl Methacrylate
Sols
Crystallization
Water content

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials

Cite this

Kim, Daewoo ; Han, He ; Kim, Hanim ; Guo, Xinwen ; Tsapatsis, Michael. / Preparation of a graphene oxide/faujasite composite adsorbent. In: Microporous and Mesoporous Materials. 2018 ; Vol. 268. pp. 243-250.
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Preparation of a graphene oxide/faujasite composite adsorbent. / Kim, Daewoo; Han, He; Kim, Hanim; Guo, Xinwen; Tsapatsis, Michael.

In: Microporous and Mesoporous Materials, Vol. 268, 15.09.2018, p. 243-250.

Research output: Contribution to journalArticle

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AU - Kim, Hanim

AU - Guo, Xinwen

AU - Tsapatsis, Michael

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AB - Template-free synthesis of faujasite type zeolite was investigated in the presence of graphene oxide (GO) in the synthesis sol. Nano-sized FAU/EMT, nano-sized FAU, and micro-sized FAU can be obtained depending on synthesis conditions such as precursor molar ratios, crystallization temperature, and the use of freeze-drying to alter water content. The obtained GO/Faujasite powder was shaped in the form of a disk by vacuum filtration. The shaped GO/Faujasite powder is electrically conductive (∼0.4 S/m and 2000-3000 Ω/sq), mechanically stable (Young's modulus: ∼7 MPa) and contains micropores, mesopores, and macropores. Furthermore, the GO/Faujasite disk exhibits high methylene blue adsorption capacity and can be regenerated by thermal annealing at 300 °C without significant capacity loss.

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