Issue 22, 2013

A green and facile approach for the synthesis of water soluble fluorescent carbon dots from banana juice

Abstract

Green luminescent water soluble oxygenous carbon dots with an average size of 3 nm were synthesized by simply heating banana (Musa acuminata) juice at 150 °C for 4 h without using any surface passivating and oxidizing agent or inorganic salt. The literature was used to propose a possible mechanism for the formation of carbon dots by this approach. The resulting carbon dots exhibited concentration, excitation wavelength and pH dependent luminescent behavior in the visible range. The quantum yield was 8.95 on excitation at a wavelength of 360 nm, using quinine sulfate as the reference. The presence of large amounts of oxygenous functionality was confirmed by FTIR and EDX studies. XRD and TEM illustrated the poor crystalline nature and narrow distribution of these spherical carbon dots. Thus bio-based fluorescent carbon dots with a high yield were reported for the first time through a simple and effective route without using any special apparatus or reagents.

Graphical abstract: A green and facile approach for the synthesis of water soluble fluorescent carbon dots from banana juice

Article information

Article type
Paper
Submitted
08 jan 2013
Accepted
22 mar 2013
First published
22 mar 2013

RSC Adv., 2013,3, 8286-8290

A green and facile approach for the synthesis of water soluble fluorescent carbon dots from banana juice

B. De and N. Karak, RSC Adv., 2013, 3, 8286 DOI: 10.1039/C3RA00088E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements