|
|||||
|
|
Optical oxygen sensor based on fluorescence change of pyrene-1-butyric acid chemisorption film on an anodic oxidation aluminium plate |
|
| Authors: | Yuki FujiwaraIchiro Okura Tokuji MiyashitaYutaka Amao |
| Affiliation: | a Department of Applied Chemistry, Oita University, Dannoharu 700, Oita 870-1192, Japan b Department of Bioengineering, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama 226-8501, Japan c Institute for Chemical Reaction Science, Tohoku University, Katahira, Aoba-ku, Sendai 980-8577, Japan |
| Abstract: | An optical oxygen-sensing material based on the fluorescence intensity changes of pyrene-1-butyric acid (PBA) chemisorption film has been developed and characterised. The fluorescence intensity of PBA film decreased with increase of oxygen concentration. The I0/I100 value of PBA film is estimated to be 6.14±0.15 and large Stern-Volmer constant (KSV=0.028±0.13 Torr−1) is obtained. After irradiation for 24 h with 150 W tungsten lamp, little changes of oxygen-sensing properties were observed. These results indicate that PBA film is highly oxygen-sensitive and photostability device. The response times of the PBA chemisorption film were 10.0 s for switching from argon to oxygen, and 53.0 s for switching from oxygen to argon. Moreover, the optical sensor based on the PBA chemisorption film was applied to the measurement of oxygen concentration in aqueous solution. |
| Keywords: | Pyrene Chemisorption film Fluorescence Optical oxygen sensor |
| 本文献已被 ScienceDirect 等数据库收录！ | |