Synthesis and photocatalytic degradation of methylene blue over p-n junction Co3O4/ZnO core/shell nanorods

被引：72

作者：

Dong, Chengjun ^{[1
]}

Xiao, Xuechun ^{[1
]}

Chen, Gang ^{[1
]}

Guan, Hongtao ^{[1
]}

Wang, Yude ^{[1
]}

机构：

[1] Yunnan Univ, Dept Mat Sci & Engn, Kunming 650091, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2015年 / 155卷

基金：

中国国家自然科学基金;

关键词：

Nanostructures; Oxides; Composite materials; Heterostructures; ZNO; NANOSTRUCTURES; OXIDATION; FILMS;

D O I：

10.1016/j.matchemphys.2015.01.033

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

One-dimension (1D) Co3O4/ZnO core/shell nanorods (NRs) were synthesized on nickel foil substrate by means of a two-step synthetic strategy. Co3O4 NRs were initially fabricated by a facile hydrothermal reaction and then ZnO was coated via a simple thermal decomposition. The results verified that the surface of the p-type Co3O4 core was uniformly assembled by the n-type ZnO nanoparticles with approximate 20 nm thickness. Compared with pristine Co3O4 NRs, Co3O4/ZnO core/shell NRs was exhibited to have a much higher photocatalytic properties in the decomposition of a model dye compound, methylene blue (MB), under ultraviolet irradiation. As confirmed by Photoluminescence (PL) spectra, the formation of p-n junction heterostructures gives rise to the enhanced photocatalystic performance of Co3O4/ZnO core/shell NRs. This study provides a general and effective method in the fabrication of 1D composition NRs with sound heterojunctions that show remarkable enhancement of photocatalytic performance. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：1 / 8

页数：8

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