Facile self-assembly of SnO2 nanospheres for volatile amine gas sensing

被引：17
|
作者：
Du, Jianping [1 ]
He, Siyuan [1 ]
Zhao, Ruihua [2 ]
Chen, Shuai [3 ]
Guo, Tianyu [1 ]
Wang, Hui [1 ]
机构：
[1] Taiyuan Univ Technol, Coll Chem & Chem Engn, Taiyuan 030024, Shanxi, Peoples R China
[2] Shanxi Kunming Tobacco Ltd Liabil Co, Taiyuan 030012, Shanxi, Peoples R China
[3] Chinese Acad Sci, Analyt Instrumentat Ctr, Inst Coal Chem, Taiyuan 030001, Peoples R China
来源：
MATERIALS LETTERS | 2017年 / 186卷
基金：
中国国家自然科学基金;
关键词：
Tin dioxide; Nanospheres; Semiconductors; Size control; Sensors; QUANTUM DOTS; DEGRADATION; NANOWIRES;
D O I：
10.1016/j.matlet.2016.10.046
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Size-controllable SnO2 nanospheres (SONS) were synthesized by self-assembly of nanoparticles in a hydro thermal synthetic system. The morphology and structure were characterized by X-ray diffraction and scanning/transmission electron microscopy. The as-synthesized SONS nanospheres are comprised of SnO2 nanoparticles and their sizes are easily adjusted by adding hydrofluoric acid. The SONS-based sensors exhibit high sensitivities and selectivities to 50 ppm volatile triethylamine (TEA). The response time is 1 s and the recovery time is 46 s upon exposure to 1 ppm TEA. The results suggest that spherical SnO2 self-assembled by nanoparticles are suitably served as sensor material for detection of low-concentration hazardous volatile amines.
引用
收藏
页码：318 / 321
页数：4
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