Facile synthesis and enhanced ethanol sensing properties of the brush-like ZnO-TiO2 heterojunctions nanofibers

作者: Jianan Deng ,Bo Yu ,Zheng Lou ,Lili Wang ,Rui Wang, Tong Zhang
期刊: Sens. Actuators B
卷号: 2013,184,21-26
接收日期: 2013-04-05 16:20:37
摘要 Abstract


Three-dimensional brush-like ZnO?CTiO2 hierarchical heterojunctions nanofibers have been successfully obtained by the combination of the electrospinning and hydrothermal process. The FESEM images showed that the brush-like ZnO?CTiO2 hierarchical heterojunctions nanofibers are composed of uniform ZnO nanorods layer of approximately 100?C300 nm in diameter grown on the side surface of TiO2 core nanofibers. The gas sensing studies revealed that the ZnO?CTiO2 sensors exhibited enhanced sensing performance to ethanol compared with the pristine TiO2 nanofibers and pristine ZnO nanorods, which might be attributed to the unique hierarchical structure and great degree of electron depletion of the interface based on the synergistic effect among the two components of TiO2 and ZnO.


  • ZnO?CTiO2;  

  • Brush-like structures;  

  • Electrospinning and hydrothermal;  

  • Gas sensing