One-pot synthesis of graphene quantum dots and simultaneous nanostructured self-assembly: Via a novel microwave-assisted method: Impact on triazine removal and efficiency monitoring

Marco Cannas, Fabrizio Messina, Alice Sciortino, Soledad Cardenas, Alice Sciortino, M. Laura Soriano, Beatriz Fresco-Cala

Risultato della ricerca: Article

Abstract

One-step methods for fabricating green materials endowed with diverse functions is a challenge to be overcome in terms of reducing environmental risk and cost. We report a fast and easy synthesis of multifunctional materials composed of only fluorescent dots with structural flexibility and high sorption capability. The synthesis consists of a one-pot microwave-assisted reaction for the simultaneous formation of graphene quantum dots (GQDs) from organic precursors and their spontaneous self-assembly forming porous architectures. The GQD-assemblies are robust and no signs of degradation were observed with most organic solvents. The ensuing GQDs and their porous solids were fully characterized at the morphological and optical levels. Interestingly, the solid integrates both the advantages of porous materials and the nanoscale, showing a marked sorption capability towards hazardous electron-deficient triazines (112 mg g-1of sorbent). Moreover, it also exhibits optical-responsive properties based on quantum confinement when it is disassembled acting as a fluorometric sensor in alcoholic solutions. Therefore, these properties enable this novel material to became a convenient bifunctional analytical tool not only for the removal of herbicides in apolar organic solvents but also as a chemosensor to monitor their presence in polar media. This work opens very challenging possibilities of creating porous graphene-based networks for contaminant remediation and monitoring.
Lingua originaleEnglish
pagine (da-a)29939-29946
Numero di pagine8
RivistaRSC Advances
Volume8
Stato di pubblicazionePublished - 2018

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cita questo

@article{ea232d0684b048beadc320d039ead7bc,
title = "One-pot synthesis of graphene quantum dots and simultaneous nanostructured self-assembly: Via a novel microwave-assisted method: Impact on triazine removal and efficiency monitoring",
abstract = "One-step methods for fabricating green materials endowed with diverse functions is a challenge to be overcome in terms of reducing environmental risk and cost. We report a fast and easy synthesis of multifunctional materials composed of only fluorescent dots with structural flexibility and high sorption capability. The synthesis consists of a one-pot microwave-assisted reaction for the simultaneous formation of graphene quantum dots (GQDs) from organic precursors and their spontaneous self-assembly forming porous architectures. The GQD-assemblies are robust and no signs of degradation were observed with most organic solvents. The ensuing GQDs and their porous solids were fully characterized at the morphological and optical levels. Interestingly, the solid integrates both the advantages of porous materials and the nanoscale, showing a marked sorption capability towards hazardous electron-deficient triazines (112 mg g-1of sorbent). Moreover, it also exhibits optical-responsive properties based on quantum confinement when it is disassembled acting as a fluorometric sensor in alcoholic solutions. Therefore, these properties enable this novel material to became a convenient bifunctional analytical tool not only for the removal of herbicides in apolar organic solvents but also as a chemosensor to monitor their presence in polar media. This work opens very challenging possibilities of creating porous graphene-based networks for contaminant remediation and monitoring.",
keywords = "Chemistry (all); Chemical Engineering (all)",
author = "Marco Cannas and Fabrizio Messina and Alice Sciortino and Soledad Cardenas and Alice Sciortino and Soriano, {M. Laura} and Beatriz Fresco-Cala",
year = "2018",
language = "English",
volume = "8",
pages = "29939--29946",
journal = "RSC Advances",
issn = "2046-2069",
publisher = "Royal Society of Chemistry",

}

TY - JOUR

T1 - One-pot synthesis of graphene quantum dots and simultaneous nanostructured self-assembly: Via a novel microwave-assisted method: Impact on triazine removal and efficiency monitoring

AU - Cannas, Marco

AU - Messina, Fabrizio

AU - Sciortino, Alice

AU - Cardenas, Soledad

AU - Sciortino, Alice

AU - Soriano, M. Laura

AU - Fresco-Cala, Beatriz

PY - 2018

Y1 - 2018

N2 - One-step methods for fabricating green materials endowed with diverse functions is a challenge to be overcome in terms of reducing environmental risk and cost. We report a fast and easy synthesis of multifunctional materials composed of only fluorescent dots with structural flexibility and high sorption capability. The synthesis consists of a one-pot microwave-assisted reaction for the simultaneous formation of graphene quantum dots (GQDs) from organic precursors and their spontaneous self-assembly forming porous architectures. The GQD-assemblies are robust and no signs of degradation were observed with most organic solvents. The ensuing GQDs and their porous solids were fully characterized at the morphological and optical levels. Interestingly, the solid integrates both the advantages of porous materials and the nanoscale, showing a marked sorption capability towards hazardous electron-deficient triazines (112 mg g-1of sorbent). Moreover, it also exhibits optical-responsive properties based on quantum confinement when it is disassembled acting as a fluorometric sensor in alcoholic solutions. Therefore, these properties enable this novel material to became a convenient bifunctional analytical tool not only for the removal of herbicides in apolar organic solvents but also as a chemosensor to monitor their presence in polar media. This work opens very challenging possibilities of creating porous graphene-based networks for contaminant remediation and monitoring.

AB - One-step methods for fabricating green materials endowed with diverse functions is a challenge to be overcome in terms of reducing environmental risk and cost. We report a fast and easy synthesis of multifunctional materials composed of only fluorescent dots with structural flexibility and high sorption capability. The synthesis consists of a one-pot microwave-assisted reaction for the simultaneous formation of graphene quantum dots (GQDs) from organic precursors and their spontaneous self-assembly forming porous architectures. The GQD-assemblies are robust and no signs of degradation were observed with most organic solvents. The ensuing GQDs and their porous solids were fully characterized at the morphological and optical levels. Interestingly, the solid integrates both the advantages of porous materials and the nanoscale, showing a marked sorption capability towards hazardous electron-deficient triazines (112 mg g-1of sorbent). Moreover, it also exhibits optical-responsive properties based on quantum confinement when it is disassembled acting as a fluorometric sensor in alcoholic solutions. Therefore, these properties enable this novel material to became a convenient bifunctional analytical tool not only for the removal of herbicides in apolar organic solvents but also as a chemosensor to monitor their presence in polar media. This work opens very challenging possibilities of creating porous graphene-based networks for contaminant remediation and monitoring.

KW - Chemistry (all); Chemical Engineering (all)

UR - http://hdl.handle.net/10447/298541

UR - http://pubs.rsc.org/en/journals/journal/ra

M3 - Article

VL - 8

SP - 29939

EP - 29946

JO - RSC Advances

JF - RSC Advances

SN - 2046-2069

ER -