Liquid nitrogen-assisted synthesis of fluorescent carbon dots from Blueberry and their performance in Fe3+ detection

By Ayşe Merve Aslandaş, Neslihan Balcı, M. Arık, H. Šakiroglu, Y. Onganer, K. Meral. 2015

147 citations recorded by the source corpus.

Abstract Fluorescent carbon dots (C-dots) were synthesized by a facile method containing liquid N2 treatment and centrifuge processes. The photophysical properties of the C-dots in an aqueous solution were examined at various conditions such as concentration, temperature, pH and excitation wavelength by using UV–vis absorption, fluorescence and time-resolved fluorescence spectroscopies. The C-dots emitted a broad fluorescence between approximately 350–550 nm and their fluorescence was tuned by changing excitation wavelength. The as-prepared C-dots were applied to Fe3+ detection from aqueous solution. Spectroscopic data revealed that the as-prepared C-dots were used to detect Fe3+ in the range of 12.5 μM to 100 μM as a fluorescence sensor.

Subfields: Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/ea11f9add216eb1fb0e40b9b082862cda89f147e