Band-Gap Engineering of NaNbO3 for Photocatalytic H2 Evolution with Visible Light
A new visible light response photocatalyst has been developed for H2 evolution from methanol solution by elemental doping. With lanthanum and cobalt dopants, the photoabsorption edge of NaNbO3 was effectively shifted to the visible light region. It is also found that the photoabsorption edge is effe...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2014/380421 |
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| _version_ | 1850168060607987712 |
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| author | Peng Li Hideki Abe Jinhua Ye |
| author_facet | Peng Li Hideki Abe Jinhua Ye |
| author_sort | Peng Li |
| collection | DOAJ |
| description | A new visible light response photocatalyst has been developed for H2 evolution from methanol solution by elemental doping. With lanthanum and cobalt dopants, the photoabsorption edge of NaNbO3 was effectively shifted to the visible light region. It is also found that the photoabsorption edge is effectively controlled by the dopant concentration. Under visible light irradiation, H2 was successfully generated over the doped NaNbO3 samples and a rate of 12 μmol·h−1 was achieved over (LaCo)0.03(NaNb)0.97O3. Densityfunctional theory calculations show that Co-induced impurity states are formed in the band gap of NaNbO3 and this is considered to be the origin of visible-light absorption upon doping with La and Co. |
| format | Article |
| id | doaj-art-e5cdd4056be6489b901faf4fb4674909 |
| institution | OA Journals |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-e5cdd4056be6489b901faf4fb46749092025-08-20T02:21:03ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2014-01-01201410.1155/2014/380421380421Band-Gap Engineering of NaNbO3 for Photocatalytic H2 Evolution with Visible LightPeng Li0Hideki Abe1Jinhua Ye2Catalytic Materials Group, Environmental Remediation Materials Unit, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, JapanCatalytic Materials Group, Environmental Remediation Materials Unit, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, JapanCatalytic Materials Group, Environmental Remediation Materials Unit, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, JapanA new visible light response photocatalyst has been developed for H2 evolution from methanol solution by elemental doping. With lanthanum and cobalt dopants, the photoabsorption edge of NaNbO3 was effectively shifted to the visible light region. It is also found that the photoabsorption edge is effectively controlled by the dopant concentration. Under visible light irradiation, H2 was successfully generated over the doped NaNbO3 samples and a rate of 12 μmol·h−1 was achieved over (LaCo)0.03(NaNb)0.97O3. Densityfunctional theory calculations show that Co-induced impurity states are formed in the band gap of NaNbO3 and this is considered to be the origin of visible-light absorption upon doping with La and Co.http://dx.doi.org/10.1155/2014/380421 |
| spellingShingle | Peng Li Hideki Abe Jinhua Ye Band-Gap Engineering of NaNbO3 for Photocatalytic H2 Evolution with Visible Light International Journal of Photoenergy |
| title | Band-Gap Engineering of NaNbO3 for Photocatalytic H2 Evolution with Visible Light |
| title_full | Band-Gap Engineering of NaNbO3 for Photocatalytic H2 Evolution with Visible Light |
| title_fullStr | Band-Gap Engineering of NaNbO3 for Photocatalytic H2 Evolution with Visible Light |
| title_full_unstemmed | Band-Gap Engineering of NaNbO3 for Photocatalytic H2 Evolution with Visible Light |
| title_short | Band-Gap Engineering of NaNbO3 for Photocatalytic H2 Evolution with Visible Light |
| title_sort | band gap engineering of nanbo3 for photocatalytic h2 evolution with visible light |
| url | http://dx.doi.org/10.1155/2014/380421 |
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