Fabrication of Cu₂O/TiO2 nanotube arrays with enhanced visible-light photoelectrocatalytic activity

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• 作者：Liyun Xiang ; Jing Ya ; Fengjiao Hu ; Lixia Li ; Zhifeng Liu
• 刊名：Applied Physics A
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：123
• 期：3
• 全文大小：
• 刊物类别：Physics and Astronomy
• 刊物主题：Condensed Matter Physics; Optical and Electronic Materials; Nanotechnology; Characterization and Evaluation of Materials; Surfaces and Interfaces, Thin Films; Operating Procedures, Materials Treatment
• 出版者：Springer Berlin Heidelberg
• ISSN：1432-0630
• 卷排序：123

文摘

A new electrochemical deposition process was developed to uniformly deposit Cu₂O nanoparticles on the matrix of TiO₂ nanotube (NT) arrays. The Cu₂O nanoparticles have a particle size about 20 nm grown both inside and outside of the nanotubes without blocking the pore openings as characterized using XRD, SEM, TEM, and EDS measurements. The Cu₂O/TiO₂NTs heterogeneous structures also effectively improve the visible-light absorption and response comparing to those of TiO₂NTs material. The photodegradation efficiency was increase by about 2.3 times on the Cu₂O-decorated TiO₂NTs materials as tested by degradation of methylene blue under simulated visible light.