基于纳米CoFe_(2)O_(4)的高选择性催化发光乙醚气体传感器  

Highly selective cataluminescence ether gas sensor based on Nano-CoFe_(2)O_(4)

作　　者：唐卓 程运明 张杰 孙中鸣 王云 孙柏 TANG Zhuo;CHENG Yun-ming;ZHANG Jie;SUN Zhong-ming;WANG Yun;SUN Bai

机构地区：[1]安徽建筑大学环境与能源工程学院,安徽合肥230601 [2]安徽省智慧城市工程技术研究中心,安徽合肥230601

出　　处：《节能》2021年第12期44-46,共3页Energy Conservation

基　　金：国家重点研发计划项目(项目编号:2019YFC0408505);安徽省科技重大专项(项目编号:18030801106);安徽省重点研究与开发计划项目(项目编号:201904a07020070);安徽省高校自然科学基金项目(项目编号:KJ2020A0468)。

摘　　要：采用水热法制备纳米材料CoFe_(2)O_(4),发现乙醚在其表面产生发光现象,据此开发用于检测乙醚气体的催化发光传感器。在优化条件下,催化发光强度与气体浓度线性范围在30~1200 mg/L时,呈现良好的线性关系(R^(2)=0.9905),对乙醚检出限达到5.5 mg/L。对甲醛、乙醇、甲苯等10种常见挥发性有机物进行反复测试,发现传感器除对乙醚具有强响应外,对其他任何物质无响应或弱响应,表明传感器对乙醚具有良好的选择性和灵敏度。The nanomaterial CoFe_(2)O_(4)was successfully prepared by hydrothermal method,it was found that ether produced luminescence on its surface,and a cataluminescence sensor was developed for the detection of ether gas.Under the optimized conditions,the cataluminescence intensity showed a good linear relationship with gas concentration in the linear range from 30 to 1200 mg/L(R^(2)=0.9905),and the detection limit of ether was 5.5 mg/L.In addition,10 kinds of common volatile organic compounds such as formaldehyde,ethanol and toluene were tested repeatedly,and it was found that the sensor has a strong response to ether,but no response or weak response to any other substances,the sensor has good selectivity and sensitivity to ether.

关 键 词：乙醚 催化发光 传感器 纳米CoFe_(2)O_(4) 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]