Photocatalytic reaction over iron hydroxides: A novel visible-light-responsive photocatalyst

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• 作者：Naoya Murakami ; Takuma Matsuo ; Toshiki Tsubota ; Teruhisa Ohno
• 关键词：Visible-light-responsive photocatalyst ; Iron hydroxide ; Hydrothermal preparation
• 刊名：Catalysis Communications
• 出版年：2011
• 出版时间：5 January 2011
• 年：2011
• 卷：12
• 期：5
• 页码：341-344
• 全文大小：644 K

文摘

Photocatalytic properties of iron hydroxide (FeOOH) particles prepared by a hydrothermal method were estimated under visible-light irradiation. Hydrothermal treatment in the presence of ethanol induced α-FeOOH (goethite) formation even under an acidic condition, while the presence of chloride ion led to preferential formation of β-FeOOH (akaganeite). α-FeOOH particles with largest specific surface area showed the highest photocatalytic activity among commercial and prepared FeOOH samples and exhibited total decomposition of acetaldehyde even under visible-light irradiation. The progress of photocatalytic reaction may be due to multi-electron reduction of oxygen over FeOOH particles.