Hydrogen Sulfide Gas Sensor Based on Graphitic Nitrogen Carbide/Alpha-Iron Oxide Binary Nanostructure

被引：5

作者：

Xu, Zhenyuan ^{[1
]}

Pang, Maosong ^{[1
]}

Zhao, Wenhao ^{[1
]}

Zhang, Dongzhi ^{[1
]}

机构：

[1] China Univ Petr East China, Coll Control Sci & Engn, Qingdao 266580, Peoples R China

来源：

IEEE SENSORS JOURNAL | 2021年 / 21卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Alpha-iron oxide; graphitic nitrogen carbide; H2S gas sensor;

D O I：

10.1109/JSEN.2020.3035821

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The graphitic nitrogen carbide/alpha-iron oxide (g-C3N4/alpha-Fe2O3) nanostructure is prepared by hydrothermal method. The g-C3N4/ alpha-Fe2O3 hybrid was characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray (XRD). The hybrid material was deposited over interdigital sensing electrodes on a PET substrate. The prepared sensor exhibited excellent response characteristics for detecting H2S gas, which was superior than that of pure alpha-Fe2O3 counterpart. The detection limit of the sensor for H2S gas is 0.5 ppm at room temperature. Moreover, the g-C3N4/ alpha-Fe2O3-sensor has a higher selectivity over the interference gas species of SO2F2, CO, and SO2. The results suggest that the alpha-Fe2O3 sensor is a good candidate for sensing decomposed SF6 products in environ and healthcare fields.

引用

页码：4250 / 4256

页数：7

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