物理化学学报Issue(8)：1535-1542,8.DOI:10.3866/PKU.WHXB201405221
脉冲沉积制备Cu2O/TiO2纳米管异质结的可见光光催化性能
Visible Light Photocatalytic Performance of Cu2O/TiO2 Nanotube Heterojunction Composites Prepared by Pulse Deposition
摘要
Abstract
Highly ordered TiO2 nanotube arrays (TNAs) were fabricated by an electrochemical anodization process and Cu2O nanoparticles were subsequently deposited onto these TNAs via pulse deposition to form Cu2O/TiO2 nanotube heterojunction composite materials. Samples were characterized by field emission scanning electron microscopy (FESEM), field emission transmission electron microscopy (FETEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and UV-Vis diffusion reflection spectroscopy (DRS). The photocatalytic performances of the Cu2O/TiO2 composites were investigated by fol owing the visible-light induced photocatalytic decomposition of methyl orange (MO). The results indicated that the inner surfaces and interfaces of the TNAs had been successful y modified with uniformly distributed Cu2O nanoparticles, and that these composites could effectively improve the visible light photocatalytic performance. The Cu2O/TiO2 nanotube composite obtained using 0.01 mol∙L-1 CuSO4 solution exhibited the best photocurrent and photocatalytic performance. Based on the results obtained, a possible photocatalytic mechanism is also discussed.关键词
TiO2纳米管阵列/脉冲沉积/Cu2O/TiO2纳米管异质结/光电化学性能/光催化Key words
TiO2 nanotube array/Pulse deposition/Cu2O/TiO2 nanotube heterojunction/Photoelectrochemical property/Photocatalysis分类
化学化工引用本文复制引用
张剑芳,王岩,沈天阔,舒霞,崔接武,陈忠,吴玉程..脉冲沉积制备Cu2O/TiO2纳米管异质结的可见光光催化性能[J].物理化学学报,2014,(8):1535-1542,8.基金项目
The project was supported by the National Natural Science Foundation of China (51302060,51128201,51272062,51311130317), Specialized Research Fund for the Doctoral Program of Higher Education, China (20130111120019), Natural Science Foundation of Anhui Province, China (1308085QE74), and Fundamental Research Funds for the Central Universities, China (2012HGBZ0648).国家自然科学基金(51302060,51128201,51272062,51311130317),高等学校博士学科点专项科研基金(20130111120019),安徽省自然科学基金(1308085QE74)和中央高校基本科研业务费专项资金(2012HGBZ0648)资助项目 （51302060,51128201,51272062,51311130317）
