@article{oai:kyutech.repo.nii.ac.jp:00005914,
 author = {Kamimura,  Sunao and Yamashita,  Shinpei and Abe,  Shungo and Tsubota, Toshiki and 坪田, 敏樹 and Ohno, Teruhisa and 横野, 照尚},
 journal = {Applied Catalysis B: Environmental},
 month = {Apr},
 note = {We prepared Au-Ag nanoparticles (NPs) with two different morphologies over SrTiO3 to investigate the effect of composite nanostructure on surface plasmon-induced photocatalytic activity; core@shell (Au@Ag) NPs were synthesized by a multi-step citric reduction method, and Au-Ag bimetallic NPs were prepared by a photo-reduction method. (Au@Ag)/SrTiO3 and Au-Ag/SrTiO3 showed strong photoabsorption in the visible light response due to a localized surface plasmon resonance (LSPR) of Ag. Moreover, they could oxidize 2-propanol to acetone and CO2 under visible light irradiation (440 < λ < 800 nm). From a comparison of action spectra for acetone evolution and the Kubelka-Munk function, it was confirmed that photocatalytic activities of (Au@Ag)/SrTiO3 and Au-Ag/SrTiO3 were induced by photoabsorption based on LSPR excitation of Ag. Interestingly, the rate of acetone evolution over (Au@Ag)/SrTiO3 was 1.5-times higher than that of over Au-Ag/SrTiO3, suggesting that the core@shell (Au@Ag) nanostructure contributes to the efficient surface plasmon-induced photocatalytic activity.},
 pages = {11--17},
 title = {Effect of core@shell (Au@Ag) nanostructure on surface plasmon-induced photocatalytic activity under visible light irradiation},
 volume = {211},
 year = {2017},
 yomi = {ツボタ, トシキ and オウノ, テルヒサ}
}