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Enhanced photocatalytic property of self-assembled Fe-doped CeO2 hierarchical nanostructures
- Authors
- Arul, N. Sabari; Mangalaraj, D.; Han, Jeong In
- Issue Date
- Apr-2015
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Semiconductors; CeO2 HRFNs; Fe-doped CeO2 HPNs; Nanocrystalline materials; Photocatalytic activity; MB dye
- Citation
- MATERIALS LETTERS, v.145, pp 189 - 192
- Pages
- 4
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- MATERIALS LETTERS
- Volume
- 145
- Start Page
- 189
- End Page
- 192
- ISSN
- 0167-577X
1873-4979
- Abstract
- Self-assembled CeO2 hierarchical rose flower-like nanostructures (HRFNs) and Fe-doped CeO2 hierarchically porous nanostructured (HPNs) thin films were synthesized by solvothermal method followed by thermal annealing process. Optical absorption for Fe-doped CeO2 HPNs showed an enhanced photo-absorption ability with an estimated band gap energy value of 2.63 eV. Photocatalytic degradation results showed that Fe-doped CeO2 HPNs exhibited an excellent photocatalytic activity in degrading Methylene Blue (MB) dye under UV-visible light irradiation compared with those of CeO2 HRFNs. The degradation rate of Fe-doped CeO2 HPNs was found to be 80% after 180 min and obeys pseudo-first-order equation. (C) 2015 Elsevier B.V. All rights reserved.
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