Thursday, March 26, 2015

Uncovering the pKa dependent fluorescence quenching of carbon dots induced by chlorophenols




Nanoscale , 2015, 7,6348-6355

DOI: 10.1039/C5NR00490J, Paper

Yu Zhang, Yu Wang, Yafeng Guan, Liang Feng

The fuorescence of carbon dots (CDs) was found to be quenched by chlorophenols (CPs) in a pKa dependent mode. The quenching can be attributed to the formation of a non-fuorescent intermediate between the electron-rich phenolic oxygen anion of CPs and electron-deficient carbonyl groups on the CDs surface.

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