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

作者：Liao, Yulong^*; Yuan, Botao; Zhang, Dainan; Wang, Xiaoyi; Li, Yuanxun; Wen, Qiye; Zhang, Huaiwu; Zhang, Zhiyong

来源：Nanoscale Research Letters, 2018, 13(1): 89.

DOI：10.1186/s11671-018-2504-7

• Anodic TiO2 nanotubes
• CeO2 nanoparticles
• CeO2/TiO2 heterojunctions
• Green chemistry

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 degrees 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.

• 出版日期2018-4-3
• 单位电子科技大学