Fig. 6From: Fluorescent Nano-Biomass Dots: Ultrasonic-Assisted Extraction and Their Application as Nanoprobe for Fe3+ detectiona Fluorescence decay traces of the NCDs in the absence and presence of Fe3+ under excitation at 370 nm and emission at 445 nm. b Schematic illustration for the possible fluorescence quenching mechanism of the NBDs in the presence of Fe3+ ionsBack to article page