用于丙酮检测的由高纵横比纳米线构成的ZnO结构的水热合成

Cao Zhen, Wang Yong, Li Zhanguo, Yu Naisen

College of Optoelectronic Engineering, Changchun University of Science and Technology, Changchun, 130022, China.

National Key Laboratory on High Power Semiconductor Lasers, Changchun University of Science and Technology, Changchun, 130022, China.

Nanoscale Res Lett. 2016 Dec;11(1):347. doi: 10.1186/s11671-016-1563-x. Epub 2016 Jul 26.

Snowflake-like ZnO structures originating from self-assembled nanowires were prepared by a low-temperature aqueous solution method. The as-grown hierarchical ZnO structures were investigated by X-ray diffraction (XRD) and field-emission scanning electron microscopy (FESEM). The results showed that the snowflake-like ZnO structures were composed of high-aspect-ratio nanowires. Furthermore, gas-sensing properties to various testing gases of 10 and 50 ppm were measured, which confirms that the ZnO structures were of good selectivity and response to acetone and could serve for acetone sensor to detect low-concentration acetone.

通过低温水溶液法制备了源自自组装纳米线的雪花状ZnO结构。采用X射线衍射（XRD）和场发射扫描电子显微镜（FESEM）对生长的分级ZnO结构进行了研究。结果表明，雪花状ZnO结构由高纵横比的纳米线组成。此外，还测量了对10 ppm和50 ppm各种测试气体的气敏性能，这证实了ZnO结构对丙酮具有良好的选择性和响应性，可用于检测低浓度丙酮的丙酮传感器。