Acidic Amorphous Silica Prepared from Iron Oxide of Bacterial Origin

Acidic Amorphous Silica Prepared from Iron Oxide of Bacterial Origin

Microporous and mesoporous silica derived from biogenous iron oxide is an attractive catalyst for various organic reactions. Biogenous iron oxide contains structural silicon, and amorphous silica remains after iron oxide is dissolved in concentrated hydrochloric acid. The amorphous silica containing...

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Veröffentlicht in:ACS applied materials & interfaces 2013-02, Vol.5 (3), p.518-523
Hauptverfasser: Hashimoto, Hideki, Itadani, Atsushi, Kudoh, Takayuki, Kuroda, Yasushige, Seno, Masaharu, Kusano, Yoshihiro, Ikeda, Yasunori, Nakanishi, Makoto, Fujii, Tatsuo, Takada, Jun
Format: Artikel
Sprache:eng
Schlagworte:
Catalysis
Ferric Compounds - chemistry
Ferric Compounds - metabolism
Leptothrix - metabolism
Oxidation-Reduction
Porosity
Silicon Dioxide - chemistry
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Beschreibung
Zusammenfassung:Microporous and mesoporous silica derived from biogenous iron oxide is an attractive catalyst for various organic reactions. Biogenous iron oxide contains structural silicon, and amorphous silica remains after iron oxide is dissolved in concentrated hydrochloric acid. The amorphous silica containing slight amounts of iron (Si/Fe = ∼150) is composed of ∼6-nm-diameter granular particles. The amorphous silica has a large surface area of 540 m2/g with micropores (1.4 nm) and mesopores (
ISSN:1944-8244
1944-8252
DOI:10.1021/am302837p