Anion-doped mixed metal oxide nanostructures derived from layered double hydroxide as visible light photocatalysts
SCIE
SCOPUS
- Title
- Anion-doped mixed metal oxide nanostructures derived from layered double hydroxide as visible light photocatalysts
- Authors
- Seungho Cho; Ji-Wook Jang; Ki-jeong Kong; Eun Sun Kim; Lee, KH; Jae Sung Lee
- Date Issued
- 2013-05-20
- Publisher
- WILEY-VCH
- Abstract
- 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 <610 nm. Density functional theory calculations of electronic structures are performed to elucidate the possibility of bandgap narrowing upon nitrogen and carbon co-doping on MMO structures.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/15443
- DOI
- 10.1002/ADFM.201201883
- ISSN
- 1616-301X
- Article Type
- Article
- Citation
- Advanced Functional Materials, vol. 23, no. 19, page. 2348 - 2356, 2013-05-20
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