文献类型：会议论文

英文题名：A Rapid and Sensitive Acetone Gas Sensor Utilizing Thermal Desorption Coupled with Cataluminescence on Nano-Cr4TiO8

作者：Zhou, Kaowen[1];Li, Xin[1];Su, Di[1];Yang, Huizhu[1];Shen, Xu[1]

第一作者：周考文

通讯作者：Zhou, KW[1]

机构：[1]Beijing Union Univ, Biochem Engn Coll, Beijing 100023, Peoples R China

第一机构：北京联合大学生物化学工程学院

通讯机构：[1]corresponding author), Beijing Union Univ, Biochem Engn Coll, Beijing 100023, Peoples R China.|[1141726]北京联合大学生物化学工程学院;[11417]北京联合大学;

会议论文集：3rd International Conference on Manufacturing Science and Engineering (ICMSE 2012)

会议日期：MAR 27-29, 2012

会议地点：Xiamen, PEOPLES R CHINA

语种：英文

外文关键词：Acetone; Cataluminescence; Gas sensor; Nanosized Cr4TiO8

摘要：A rapid and sensitive cataluminescence (CTL)-based gas sensor using nanosized Cr4TiO8 as a probe was proposed for direct determination of acetone in air. Trace acetone was firstly absorbed on active carbon at room temperature to concentrate, then desorbed at 84 degrees C to determine. The sensor showed high selectivity to acetone at wavelength of 430nm, satisfying activity at temperature of 366 degrees C and good stability at carrier flow rate of 115 ml/min. The linear range of CTL intensity versus concentration of acetone was 2.5 similar to 150 mg/m(3), and the detection limit (3 sigma) was 1.2 mg/m(3). The recovery of artificial sample was 94.1%-106.2% by this method. The response to formaldehyde and ethanol was insignificant, and there was no response to SO2, CO and benzene.