Brewery spent grain derived carbon dots for metal sensing.
Journal
RSC advances
ISSN: 2046-2069
Titre abrégé: RSC Adv
Pays: England
ID NLM: 101581657
Informations de publication
Date de publication:
13 Apr 2022
13 Apr 2022
Historique:
received:
04
01
2022
accepted:
07
04
2022
entrez:
28
4
2022
pubmed:
29
4
2022
medline:
29
4
2022
Statut:
epublish
Résumé
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.
Identifiants
pubmed: 35481069
doi: 10.1039/d2ra00048b
pii: d2ra00048b
pmc: PMC9009306
doi:
Types de publication
Journal Article
Langues
eng
Pagination
11621-11627Informations de copyright
This journal is © The Royal Society of Chemistry.
Déclaration de conflit d'intérêts
There are no conflicts to declare.
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