Anion-Doped Mixed Metal Oxide Nanostructures Derived from Layered Double Hydroxide as Visible Light Photocatalysts

Mixed metal oxide (MMO) nanostructures co‐doped uniformly by carbon and nitrogen are synthesized for the first time by annealing a terephthalate‐intercalated layered double hydroxide (LDH) under ammonia gas flow. The interlayer gallery of LDH allows effective access of NH3 and the carbon source to i...

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Bibliographic Details
Published in:Advanced functional materials 2013-05, Vol.23 (19), p.2348-2356
Main Authors: Cho, Seungho, Jang, Ji-Wook, Kong, Ki-jeong, Kim, Eun Sun, Lee, Kun-Hong, Lee, Jae Sung
Format: Article
Language:English
Subjects:
Anions
Carbon
Doping
Hydroxides
layered double hydroxide
Metal oxides
mixed metal oxide
Nanomaterials
Nanostructure
Photocatalysis
photoelectrochemical water oxidation
uniform doping
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Summary:Mixed metal oxide (MMO) nanostructures co‐doped uniformly by carbon and nitrogen are synthesized for the first time by annealing a terephthalate‐intercalated layered double hydroxide (LDH) under ammonia gas flow. The interlayer gallery of LDH allows effective access of NH3 and the carbon source to its crystal lattice for a uniform nitrogen and carbon doping. Such co‐doped MMO exhibit significantly red‐shifted absorption spectra to visible light region relative to pure MMO. Photoelectrochemical water oxidation and incident‐photon‐to‐current‐conversion efficiency of LDH‐derived photocatalysts demonstrate that all the visible light absorption caused by the anion doping contributes to the photocatalytic activity over the entire absorbed wavelength range of
ISSN:1616-301X
1616-3028
DOI:10.1002/adfm.201201883