A Facile Method for Loading CeO2 Nanoparticles on Anodic TiO2 Nanotube Arrays

Nanoscale Research Letters

卷:13

Yuanxun Li¹  Botao Yuan¹  Dainan Zhang¹  Qiye Wen¹  Huaiwu Zhang¹  Yulong Liao¹  Xiaoyi Wang¹  Zhiyong Zhong¹ 

[1] State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China;

关键词: Anodic TiO2 nanotubes;    CeO2 nanoparticles;    CeO2/TiO2 heterojunctions;    Green chemistry;   

DOI  :  10.1186/s11671-018-2504-7

来源: DOAJ

【 摘 要 】

Abstract In this paper, a facile method was proposed to load CeO2 nanoparticles (NPs) on anodic TiO2 nanotube (NT) arrays, which leads to a formation of CeO2/TiO2 heterojunctions. Highly ordered anatase phase TiO2 NT arrays were fabricated by using anodic oxidation method, then these individual TiO2 NTs were used as tiny “nano-containers” to load a small amount of Ce(NO3)3 solutions. The loaded anodic TiO2 NTs were baked and heated to a high temperature of 450 °C, under which the Ce(NO3)3 would be thermally decomposed inside those nano-containers. After the thermal decomposition of Ce(NO3)3, cubic crystal CeO2 NPs were obtained and successfully loaded into the anodic TiO2 NT arrays. The prepared CeO2/TiO2 heterojunction structures were characterized by a variety of analytical technologies, including XRD, SEM, and Raman spectra. This study provides a facile approach to prepare CeO2/TiO2 films, which could be very useful for environmental and energy-related areas.

【 授权许可】

Unknown