FRANÇAIS
A showcase of ÉTS researchers’ publications and other contributions
SEARCH

Brewery spent grain derived carbon dots for metal sensing

Downloads

Downloads per month over past year

Nkeumaleu, Aurel Thibault, Benetti, Daniele, Haddadou, Imane, Di Mare, Michael, Ouellet-Plamondon, Claudiane M. and Rosei, Federico. 2022. « Brewery spent grain derived carbon dots for metal sensing ». RSC Advances, vol. 12, nº 19. pp. 11621-11627.
Compte des citations dans Scopus : 8.

[thumbnail of Ouellet-Plamondon-C-2022-24300.pdf]
Preview
PDF
Ouellet-Plamondon-C-2022-24300.pdf - Published Version
Use licence: Creative Commons CC BY.

Download (2MB) | Preview

Abstract

This article presents a proof-of-concept to recycle microbrewery waste as a carbon source for synthesizing carbon dots (CDs). A simple method has been developed to synthesize water-soluble CDs based on microwave irradiation of brewery spent grain. The structures and optical properties of the CDs were characterized by ultraviolet-visible (UV-Vis) spectroscopy, photoluminescence spectroscopy (PL), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy. The effects of reaction time, temperature and pH on the properties of carbon dots were studied. These CDs were found to be spherical with an average diameter of 5.3 nm, N-doped, containing many functional groups (hydroxyl, ethers, esters, carboxyl and amino groups), and to exhibit good photoluminescence with a fluorescent quantum yield of 14%. Finally, the interaction between carbon dots and metal ions was investigated towards developing CDs as a sensing technology for water treatment, food quality and safety detection.

Item Type: Peer reviewed article published in a journal
Professor:
Professor
Ouellet-Plamondon, Claudiane
Affiliation: Génie de la construction
Date Deposited: 29 Apr 2022 19:06
Last Modified: 23 Jun 2022 14:22
URI: https://espace2.etsmtl.ca/id/eprint/24300

Actions (login required)

View Item View Item