Novel “on–off” fluorescence sensing for rapid and accurate determination of Cr <sup>3+</sup> based on g-CNQDs
Xiaohua Xu, Huye Li, Yapeng Sun, Tianfeng Ma, Lin Shi, Wencheng Mu, Huan Wang, Yongchang Lu
Abstract
An “on–off” fluorescence sensing system was constructed with g-CNQDs@ p -acetaminophenol for detection of Cr 3+ . g-CNQDs were synthesized, and the fluorescence signal was enhanced based on the effect between APAP and g-CNQDs. The introduction of Cr 3+ into the system results in fluorescence quenching.
Topics & Concepts
FluorescenceChemistryAnalytical Chemistry (journal)PhysicsChromatographyOpticsMolecular Sensors and Ion DetectionAdvanced Nanomaterials in CatalysisLuminescence and Fluorescent Materials