Preparation of activated carbon-zeolite composite materials from coal fly ash

Michihiro Miyake, Yumi Kimura, Toru Ohashi, Motohide Matsuda

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Composite materials consisting of activated carbon and zeolites, which are expected to be suitable for environmental applications, were successfully prepared using coal fly ash with unburned carbon of ca. 8.0 mass% as a source material. The main components (SiO2 and Al2O3) along with unburned carbon were activated by NaOH fusion treatment at 750 °C in a N2 atmosphere, and subsequently converted into zeolites Na-X and/or Na-A with good crystallinity by hydrothermal treatment. The type of zeolite phase formed was dependent on the hydrothermal treatment conditions including NaOH concentration. In this report, the influence of preparation parameters and the presence or absence of unburned carbon on the chemical conversion of coal fly ash into composite materials consisting of activated carbon and zeolites is described.

Original languageEnglish
Pages (from-to)170-177
Number of pages8
JournalMicroporous and Mesoporous Materials
Volume112
Issue number1-3
DOIs
Publication statusPublished - Jul 1 2008

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Coal Ash
Zeolites
fly ash
Coal
activated carbon
Fly ash
zeolites
coal
Activated carbon
preparation
composite materials
Composite materials
Carbon
carbon
crystallinity
Fusion reactions
fusion
atmospheres

Keywords

  • Activated carbon
  • Coal fly ash
  • Fusion treatment
  • Hydrothermal treatment
  • Zeolite

ASJC Scopus subject areas

  • Catalysis
  • Materials Science(all)

Cite this

Preparation of activated carbon-zeolite composite materials from coal fly ash. / Miyake, Michihiro; Kimura, Yumi; Ohashi, Toru; Matsuda, Motohide.

In: Microporous and Mesoporous Materials, Vol. 112, No. 1-3, 01.07.2008, p. 170-177.

Research output: Contribution to journalArticle

Miyake, Michihiro ; Kimura, Yumi ; Ohashi, Toru ; Matsuda, Motohide. / Preparation of activated carbon-zeolite composite materials from coal fly ash. In: Microporous and Mesoporous Materials. 2008 ; Vol. 112, No. 1-3. pp. 170-177.
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