Precursor-Dependent Photocatalytic Activity of Carbon Dots.
Carbon dots
biomass valorization
carbon source
photocatalysis
Journal
Molecules (Basel, Switzerland)
ISSN: 1420-3049
Titre abrégé: Molecules
Pays: Switzerland
ID NLM: 100964009
Informations de publication
Date de publication:
26 Dec 2019
26 Dec 2019
Historique:
received:
28
11
2019
revised:
22
12
2019
accepted:
24
12
2019
entrez:
1
1
2020
pubmed:
1
1
2020
medline:
26
5
2020
Statut:
epublish
Résumé
This work systematically compares both structural features and photocatalytic performance of a series of graphitic and amorphous carbon dots (CDs) prepared in a bottom-up manner from fructose, glucose, and citric acid. We demonstrate that the carbon source and synthetic procedures diversely affect the structural and optical properties of the CDs, which in turn unpredictably influence their photo electron transfer ability. The latter was evaluated by studying the photo-reduction of methyl viologen. Overall, citric acid-CDs were found to provide the best photocatalytic performance followed by fructose- and glucose-CDs. However, while the graphitization of glucose- and citric acid-CDs favored the photo-reaction, a reverse structure-activity dependence was observed for fructose-CDs due to the formation of a large graphitic-like supramolecular assembly. This study highlights the complexity to design in advance photo-active bio-based carbon nanomaterials.
Identifiants
pubmed: 31888094
pii: molecules25010101
doi: 10.3390/molecules25010101
pmc: PMC6983025
pii:
doi:
Substances chimiques
Citric Acid
2968PHW8QP
Fructose
30237-26-4
Carbon
7440-44-0
Glucose
IY9XDZ35W2
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Déclaration de conflit d'intérêts
The authors declare no conflict of interest.
Références
Photochem Photobiol Sci. 2019 Jan 1;18(1):110-119
pubmed: 30351326
ACS Med Chem Lett. 2018 Jul 16;9(8):832-837
pubmed: 30128076
ACS Appl Mater Interfaces. 2018 Nov 28;10(47):40560-40567
pubmed: 30370767
J Am Chem Soc. 2015 May 13;137(18):6018-25
pubmed: 25864839
J Am Chem Soc. 2012 Jan 18;134(2):747-50
pubmed: 22201260
Molecules. 2018 Feb 10;23(2):null
pubmed: 29439409
Chemistry. 2017 Dec 1;23(67):16924-16940
pubmed: 28815887
Nanoscale. 2013 Mar 7;5(5):1967-71
pubmed: 23361842
Nanoscale. 2016 Aug 14;8(30):14374-8
pubmed: 27426926
Molecules. 2019 May 08;24(9):null
pubmed: 31072045
Molecules. 2016 Dec 02;21(12):
pubmed: 27918453
Angew Chem Int Ed Engl. 2018 Apr 23;57(18):5062-5067
pubmed: 29462504
Chem Soc Rev. 2017 Oct 16;46(20):6111-6123
pubmed: 28664961
Angew Chem Int Ed Engl. 2017 Jun 1;56(23):6459-6463
pubmed: 28464489