中文摘要：

设计了基于在纳米ZrO2中掺杂MgO的催化发光传感器,以快速检测丙烯醛气体。与纯ZrO2相比,MgO的掺杂量为5%时,丙烯醛的催化发光强度增大了1.8倍,干扰气体乙醛的催化发光强度降为原来的约1/7。传感器在波长425nm,温度279℃,流速200mL/min条件下,对丙烯醛具有高灵敏度和选择性,发光强度与丙烯醛浓度在5～5000mL/m3范围内呈线性关系（r=0.9996）,检出限为1.6mL/m3,响应时间12s。浓度均为1000mL/m3的10种干扰气体通过传感器时,乙醛、甲醇、苯、甲苯和二甲苯的发光强度分别相当于丙烯醛的6.1%,2.9%,2.5%,2.5%和3.0%,其它气体不产生明显信号。本方法可方便、快速测定空气中丙烯醛气体。

英文摘要：

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： temperature at 279 ℃,wavelength at 425 nm;and gas flow rate at 200 mL/min.Under the optimal condition,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 concentration of 1000 mL/m3,the CTL intensity of acetaldehyde,methanol,benzene,toluene,dimethylbenzene 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.