NDLI: Synthesis of Cu2O@Ag Bumpy Nanoparticles with Enhanced Photocatalytic Performance

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Synthesis of Cu2O@Ag Bumpy Nanoparticles with Enhanced Photocatalytic Performance

Content Provider	Semantic Scholar
Author	Lee, Chang-Soo Lee, Yung Jong Jung, Chanwon Lee, Hyuck Mo
Copyright Year	2017
Abstract	Cuprous oxide (Cu2O), known as a ptype semiconductor, has been widely studied because of low price and adequate band gap for photocatalyst [1]. When the semiconductor material is combined with novel metals such as Au, Ag and Cu in the form of composite catalyst, it is called as plasmonic photocatalyst and shows much higher photocatalytic activity due to enhanced light adsoprtion ability [2]. In this work, we synthesized Cu2O-Ag core-shell nanoparticles with various shell thickness using a facile one-step process. The structure was investigated using transmission electron microscopy (TEM), energy-dispersive spectroscopy (EDS), and X-ray diffraction (XRD). The optical properties of the nanoparticles were examined using UV-vis adsoprtion spectroscopy. Furthermore, we investigated the photocatalytic properties of the Cu2O-Ag coreshell nanoparticles using the methyl orange method to compare with Cu2O nanoparticles. The Cu2O-Ag core-shell nanoparticles exhibit enhanced photocatalytic activity over an extended wavelength range because of the localized surface plasmon resonance (LSPR) effect of the Ag core nanoparticles. The Cu2OAg core-shell nanoparticles showed the better photocatalytic activity than Cu2O nanoparticles. This work has indicated that the Cu2O-Ag core-shell nanoparticles can be a superior visible-light plasmonic photocatalyst. Fig.1 TEM images of Cu2O@Ag bumpy nanoparticles with various shell thickness.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.shokubai.org/16kjsc/pdf/Youth_oral/YO_B20.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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