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Issue 50, 2017, Issue in Progress
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Hybrid CuxO–TiO2 porous hollow nanospheres: preparation, characterization and photocatalytic properties

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Abstract

A series of CuxO–TiO2 hollow nanospherical composites with different mass percents of copper were prepared by an impregnation method, and the TiO2 hollow nanospheres were prepared by hydrolysis of tetraethoxy titanium on the surface of spherical SiO2 nanoparticles and corrosion of SiO2 in NaOH solution. CuxO–TiO2 hollow nanospheres displayed higher photocatalytic activities towards acetaldehyde degradation to CO2 than TiO2@SiO2 nanospheres and TiO2 hollow nanospheres under UV and visible-light irradiation due to the narrowed band gap of TiO2 and enhanced charge separation after copper was introduced. In particular, the CuxO–TiO2 hollow nanospheres show high catalytic activities in degradation under visible-light irradiation.

Graphical abstract: Hybrid CuxO–TiO2 porous hollow nanospheres: preparation, characterization and photocatalytic properties

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Supplementary files

Article information


Submitted
10 May 2017
Accepted
12 Jun 2017
First published
20 Jun 2017

This article is Open Access

RSC Adv., 2017,7, 31619-31627
Article type
Paper

Hybrid CuxO–TiO2 porous hollow nanospheres: preparation, characterization and photocatalytic properties

Y. Xiang, Y. Li, X. Zhang, A. Zhou, N. Jing and Q. Xu, RSC Adv., 2017, 7, 31619 DOI: 10.1039/C7RA05281B

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