Triphenylamine-based fluorescent sensors for CO2 response and detection of F− with high sensitivity and selectivity

The development of CO 2 -active fluorescent sensors is paramount to the climate assessment. And also, because of the biological and environmental importance, trace detection F − is a great challenge task but very necessary for human daily life. This paper presented a water-soluble fluorescent sensor fabricated by triphenylamine derivative of NBTA 3− and quaternary ammonium salt (CTAC), which was further explored as a green and multi-functional sensing platform, and demonstrated excellent CO 2 response ability and trace amount of F − recognition with obvious visualized exhibitions. Especially, our research result has potential application in the CO 2 sensing by contact and vapor modes. Both of techniques exhibited reliable and sensitive and quick CO 2 sensing capability. We hope our research result is of real-time monitoring CO 2 in our surroundings.