Sodium alginate assisted construction of ZnSnO 3 microspheres enhanced HCHO sensing performance under UV illumination at room temperature

Micro & nano letters

article

Jie Chen¹  Zhihua Ying¹  Peng Zheng¹  Rongfa Gao¹  Jinbang Mei¹ 

[1] College of Electronics and Information, Hangzhou Dianzi University

关键词: nanofabrication;    nanosensors;    semiconductor growth;    zinc compounds;    gas sensors;    microsensors;    sodium alginate assisted construction;    UV illumination;    water-soluble biopolymer sodium alginate;    crystal growth modifier;    microspheres;    HCHO sensor;    gas sensor;    hydrothermal process;    temperature 293.0 K to 298.0 K;    ZnSnO3;   

DOI  :  10.1049/mnl.2019.0207

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

The ZnSnO 3 microspheres were fabricated with water-soluble biopolymer sodium alginate (SA) as a crystal growth modifier under hydrothermal conditions. The gas-sensing properties of ZnSnO 3 @SA were tested under the illumination of UV light at room temperature. The results showed that the ZnSnO 3 @SA sensor exhibited better HCHO gas response than pristine ZnSnO 3 sensor, which was ascribed to the introduction of SA that changed the size distribution of the microspheres. Test results of HCHO gas with different concentrations indicated that the ZnSnO 3 @SA sensor had a good linearity. This approach would provide a potential route for the HCHO sensor to work at room temperature. In addition, the sensing mechanism was also discussed.

【 授权许可】

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