Method for selective detection of cesium ion using complex of fluorescent polymer nanoparticle and graphene oxide

摘要

The present invention is based on the principle that the fluorescence intensity is changed by the energy transfer between the polymer nanoparticles and the graphene oxide, and the cesium ions bind to the tetraethylene glycol side chain of the conjugated polymer, And the fluorescence of the conjugated polymer is restored by being released. The detection of cesium ions also confirmed that the side chain length and type of the conjugated polymer have a great influence on sensitivity and selectivity.