Green synthesized carbon nanodots as a fluorescent probe for selective and sensitive detection of iron(III) ions

A green approach has been employed for the synthesis of fluorescent carbon nanodots (C-dots) with the use of yellow banana peels as carbon source. The preparation process is entirely chemical-free, environmentally friendly, convenient and rapid. The as-synthesized C-dots were demonstrated as an effective fluorescent probe for label-free, selective and sensitive detection of Fe3+ with a detection limit as low as 211 nM. (C) 2014 Elsevier B.V. All rights reserved.