4.7 Article

Enhanced photocatalytic activity of La-doped AgNbO3 under visible light irradiation

Journal

DALTON TRANSACTIONS
Volume -, Issue 13, Pages 2423-2427

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/b810126d

Keywords

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Funding

  1. Japanese Government
  2. Ministry of Education, Culture, Sports, and Technology of Japan (MEXT) [20750124]
  3. Japan Society for the Promotion of Science (JSPS)
  4. National Natural Science Foundation of China [20528302]
  5. National Basic Research Program of China [2007CB613301, 2007CB613305]
  6. Jiangsu Provincial Natural Science Foundation [BK2006718, BK2006127]
  7. Jiangsu Provincial Talented Scholars Program

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Using a solid-state-reaction method, La-doped AgNbO3 samples of Ag1-xLaxNbO3 were synthesized and their photocatalytic activities were evaluated from gaseous 2-propanol decomposition under visible light irradiation. The photocatalytic activity and the surface area were increased by La doping, but the crystal structure and light absorption property did not change. The photocatalytic activity of Ag1-xLaxNbO3 was significantly improved over that of AgNbO3. The Ag0.88La0.12NbO3 sample displayed the highest photocatalytic activity: it was more than 12-fold higher than that of AgNbO3.

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