Development of Plasmonic Cu2O/Cu Composite Arrays as Visible- and Near-Infrared-Light-Driven Plasmonic Photocatalysts.
作者： Kosuke Sugawa , Natsumi Tsunenari , Hideyuki Takeda , Saki Fujiwara , Tsuyoshi Akiyama
DOI: 10.1021/ACS.LANGMUIR.7B01052
关键词: Optoelectronics 、 Localized surface plasmon 、 Photodegradation 、 Photocatalysis 、 Plasmon 、 Analytical chemistry 、 Materials science 、 Methyl orange 、 Colloidal crystal 、 Excitation 、 Excited state
摘要: We describe efficient visible- and near-infrared (vis/NIR) light-driven photocatalytic properties of hybrids Cu2O plasmonic Cu arrays. The Cu2O/Cu arrays were prepared simply by allowing a half-shell array to stand in an oxygen atmosphere for 3 h, which was depositing on two-dimensional colloidal crystals with diameter 543 or 224 nm. localized surface plasmon resonances (LSPRs) the strongly excited at 866 626 nm, respectively, imaginary part dielectric function is small. rate photodegradation methyl orange 27 84 times faster, than that Cu2O/nonplasmonic plate. activity demonstrated be dominated LSPR excitation. These results showed inexpensive can excellent vis/NIR-light-driven photocatalysts based excitation LSPR.
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