Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/22836
Title: Interfacial hydrothermal synthesis of Cu@Cu2O core - shell microspheres with enhanced visible-light-driven photocatalytic activity
Authors: Ai, Z
Zhang, L
Lee, S 
Ho, W
Issue Date: 2009
Publisher: American Chemical Society
Source: Journal of physical chemistry C, 2009, v. 113, no. 49, p. 20896-20902 How to cite?
Journal: Journal of physical chemistry C 
Abstract: In this study, core - shell Cu@Cu2O microspheres were synthesized with an interfacial hydrothermal method. The resulting products were systematically characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy, and X-ray photoelectron spectroscopy. A core - shell Cu@Cu2O microsphere formation mechanism, which involved the in situ transformation of Cu to Cu2O, was proposed on the basis of the characterization results. That is, pure Cu microspheres were first formed through the reduction of copper(II) acetylacetonate. Then surface Cu was oxidatively transformed to a Cu2O shell, resulting in the Cu@Cu 2O core - shell structure. The content of Cu2O shell in the composite microspheres increased with prolonged reaction time. The as-prepared Cu@Cu2O core - shell microspheres exhibited enhanced photocatalytic activity as compared to Cu2O on the degradation of gaseous nitrogen monoxide under visible light irradiation. The reasons for visible-light-driven photocatalytic activity enhancement on Cu@Cu2O core - shell microspheres were discussed. These Cu@Cu2O microspheres are ideal candidates for fundamental studies as well as catalytic, electronic, and magnetic applications.
URI: http://hdl.handle.net/10397/22836
ISSN: 1932-7447
EISSN: 1932-7455
DOI: 10.1021/jp9083647
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

125
Last Week
0
Last month
3
Citations as of Sep 15, 2017

WEB OF SCIENCETM
Citations

121
Last Week
0
Last month
3
Citations as of Sep 22, 2017

Page view(s)

48
Last Week
1
Last month
Checked on Sep 18, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.