Synthesis of zinc oxide-alumina nanocables for detection of 3-hydroxy-2-butanone biomarker

被引：16
|
作者：
Chen, Jian [1 ,2 ]
Zhu, Zhengyou [1 ,2 ]
Zheng, Shizheng [1 ,2 ]
Du, Lingling [1 ,2 ]
Xing, Xiaxia [1 ,2 ]
Feng, Dongliang [1 ,2 ]
Li, Shun [3 ]
Yang, Dachi [1 ,2 ]
机构：
[1] Nankai Univ, Coll Elect Informat & Opt Engn, Tianjin Key Lab Optoelect Sensor & Sensing Networ, Tianjin 300350, Peoples R China
[2] Nankai Univ, Coll Elect Informat & Opt Engn, Dept Elect, Tianjin 300350, Peoples R China
[3] Southern Univ Sci & Technol, Sch Environm Sci & Engn, Guangdong Prov Key Lab Soil & Groundwater Pollut, Shenzhen 518055, Peoples R China
来源：
MATERIALS LETTERS | 2019年 / 253卷
基金：
中国国家自然科学基金;
关键词：
Zinc oxide; Aluminum oxide; Semiconductors; Sensors; 3-Hydroxy-2-Butanone; GAS-SENSING PROPERTIES; LISTERIA-MONOCYTOGENES; TIN OXIDE; FABRICATION;
D O I：
10.1016/j.matlet.2019.06.044
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report zinc oxide (core) coated with alumina (shell) single-shelled nanocables (ZnO@Al2O3 NCBs) for detection of 3-hydroxy-2-butanone (3H-2B) biomarker, which was prepared via aluminum-anodic-oxide (AAO) template confined electrodeposition, chemical etching and leaving thin AAO-channel wall with broken surface. In the core/shell nanostructure, the outer Al2O3 layer protects ZnO from interference gases, while the pores allow the target gas to react with the oxygen specie on the surface of ZnO. For as-built ZnO@Al2O3 NCBs sensors, the detection limit is as low as 1 ppm, and the response value to 50 ppm 3H-2B is 37.2 at 300 degrees C. Moreover, the ZnO@Al2O3 NCBs show excellent selectivity and cyclic stability. Our ZnO@Al2O3 NCBs sensors in future monitoring Listeria monocytogenes. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页码：121 / 123
页数：3
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