分析化学2011，Vol.39Issue(8)：1213-1217,5.DOI:10.3724/SP.J.1096.2011.01213
复合ZrO2/MgO催化发光丙烯醛气体传感器
A Gaseous Acrolein Sensor Based on Cataluminescence Using ZrO2 /MgO Composite.
摘要
Abstract
A new cataluminescence (CTL) sensor using nanosized ZrO2 doped with MgO was developed to monitor gaseous acrolein promptly. When the mass content of MgO was about 5%, acrolein CTL intensity over ZrO2/MgO was 1. 8 times higher than that of pure ZrO2, moreover, the CTL intensity of acetaldehyde, a main disturbing material was only about one 7th of pure ZrO2. The proposed sensor showed high sensitivity and selectivity to acrolein at optimal conditions of: tempera-ture at 279 °C , wavelength at 425 nm; and gas flow rate at 200 mL/min. Under the optimal condi-tion, the linear range of the CTL sensor versus acrolein concentration was 5 - 5000 mL/m3 , with a detection limit of 1. 65 mL/m3 and response time of 12 s. Among ten tested species under the concen-tration of 1000 mL/m3, the CTL intensity of acetaldehyde, methanol, benzene, toluene, dimethyl-benzene were only 6. 1%, 2. 9%, 2. 5%, 2. 5%, 3. 0% of acrolein, respectively, while no obvious signal was monitored for the others. The sensor can be applied to facilitate rapid detection of acrolein in the air.关键词
催化发光/ZrO2/丙烯醛/气体传感器Key words
Cataluminescence/ Zirconium dioxide/ Acrolein/ Gas sensor引用本文复制引用
刘永慧,曹小安,陈福高,张润坤..复合ZrO2/MgO催化发光丙烯醛气体传感器[J].分析化学,2011,39(8):1213-1217,5.基金项目
本文系国家自然科学基金(No.21075024)、广东省自然科学基金(No.8151009101000130)资助项目 （No.21075024）
