Synthesis of In2O3 nanoparticle/TiO2 nanobelt heterostructures for near room temperature ethanol sensing

被引：39
|
作者：
Li, Yujie [1 ]
Yang, Hongru [1 ]
Tian, Jian [1 ]
Hu, Xiaolin [1 ]
Cui, Hongzhi [1 ]
机构：
[1] Shandong Univ Sci & Technol, Sch Mat Sci & Engn, Qingdao 266590, Peoples R China
来源：
RSC ADVANCES | 2017年 / 7卷 / 19期
基金：
中国国家自然科学基金; 国家高技术研究发展计划(863计划);
关键词：
VISIBLE-LIGHT; PHOTOCATALYTIC ACTIVITIES; HOLLOW SPHERES; TIO2; NANOBELTS; ANATASE TIO2; GAS SENSORS; NANOSTRUCTURES; SENSITIVITY; NANORODS; SURFACE;
D O I：
10.1039/c7ra00011a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In2O3 nanoparticle/TiO2 nanobelt heterostructures are prepared via a facile hydrothermal strategy. Plenty of smaller In2O3 nanoparticles are uniformly deposited onto the surface of TiO2 nanobelts. Compared with pure TiO2 nanobelts and In2O3 nanoparticles, the obtained In2O3 nanoparticle/TiO2 nanobelt heterostructures exhibit enhanced ethanol sensing properties at a temperature as low as 45 degrees C and a low detection limit (1 ppm). The improved sensing properties are mainly attributed to the synergic effect of fast charge transfer of heterostructure and the formation of preferential adsorption sites by the small size of the In2O3 nanoparticles.
引用
收藏
页码：11503 / 11509
页数：7
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