Novel Low Temperature Synthesis Route for Functional Au/ZnFe Mixed Oxide Nanohybrids

ZnFe layered double hydroxide (LDH) was synthesized through which the [AuCl4]− anions were directly intercalated in situ. Low temperature calcination converts the [AuCl4]− intercalated LDH into an intimately mixed ZnFe metal oxides containing favorably dispersed Au nanoparticles. The unique microstr...

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Published inACS applied materials & interfaces Vol. 6; no. 15; pp. 12406 - 12412
Main Authors Liang, Yen Nan, Li, Yongmei, Ang, Cindy, Shen, Yaodong, Chi, Dongzhi, Hu, Xiao
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 13.08.2014
Subjects
intimately mixed metal oxides
photocatalytic activity
low temperature calcination
noble metal
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Summary:ZnFe layered double hydroxide (LDH) was synthesized through which the [AuCl4]− anions were directly intercalated in situ. Low temperature calcination converts the [AuCl4]− intercalated LDH into an intimately mixed ZnFe metal oxides containing favorably dispersed Au nanoparticles. The unique microstructure exhibited substantially improved photocatalytic activity by more than 40 times compared to the baseline material intercalated with [CO3]2–. Such improvement is unprecedented among noble metal decorated photocatalyst materials and is elucidated based on the mechanisms of morphology evolution.
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ISSN:1944-8244
1944-8252
DOI:10.1021/am502256e