Fig. 10
From: Graphene quantum dot nanocomposites: electroanalytical and optical sensor technology perspective
(Reproduced with permission from Ref. Shi et al. 2021, Copyright 2021, Elsevier)
a Procedure and mechanism of LDH–GQDs fluorescence probe for detecting ascorbic acid, b fluorescence spectra of LDH–GQDs with different ascorbic acid concentration, c Stern–Volmer relationship between F0/F and ascorbic acid concentration, d selectivity performance of LDH–GQDs in ascorbic acid detection