%0 Journal Article
%T Studies of the Cataluminescence of Benzene Homologues onNanosized 污每Al2O3/Eu2O3 and the Development of a Gas Sensorfor Benzene Homologue Vapors
%A Jieshan Lu
%A Xiaoan Cao
%A Canying Pan
%A Lianfeng Yang
%A Guangbo Lai
%A Jianling Chen
%A Cuiqin Wu
%J Sensors
%D 2006
%I MDPI AG
%R 10.3390/s6121827
%X The cataluminescence (CTL) of benzene and the benzene homologues tolueneand xylene on nanosized 污每Al2O3 doped with Eu2O3 (污每Al2O3/Eu2O3) was studied and asensor of determining these gases was designed. The proposed sensor showed highsensitivity and selectivity at an optimal temperature of 432 oC, a wavelength of 425 nm anda flow rate of 400 mL/min. Quantitative analysis was performed at the optimal conditions.The linear ranges of CTL intensity versus concentration of the benzene homologues were asfollows: benzene 2.4~5000 mL/m3, toluene 4.0~5000 mL/m3 and xylene 6.8~5000 mL/m3,with detection limits (3考) of 1.8 mL/m3, 3.0 mL/m3 and 3.4 mL/m3 for each one,respectively. The response time of this system was less than 3 s. The coexistence of othergases, such as SO2, CO and NH3, caused interference at levels around 11.7%, 5.8% and8.9% respectively. The technique is a convenient and fast way of determining the vapors ofbenzene homologues in air.
%K Cataluminescence
%K benzene homologues
%K gas sensor
%K nanosized 污每Al2O3+Eu2O3
%U http://www.mdpi.com/1424-8220/6/12/1827