Amphibious fluorescent carbon dots: one-step green synthesis and application for light-emitting polymer nanocomposites

Zhou, Li; He, Beihai; Huang, Jiachang

doi:10.1039/c3cc43295e

Cited by 152 publications

(102 citation statements)

References 23 publications

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“…When the X-rays interacts with a crystallite C-dots sample, the constructive interference is produced, and these diffracted X-rays are then detected, processed, and counted, revealing the average structure of C-dots [86,87,89,[130][131][132][133][134][135][136]. Figure 3(A) displays a typical XRD pattern of polyethylenimine (PEI) functionalized C-dots (C-dots-PEI) derived from microwave-assisted pyrolysis of glycerol in the presence of branched PEI [86].…”

Section: X-ray Diffractionmentioning

confidence: 99%

Characterization and Analytical Separation of Fluorescent Carbon Nanodots

Gong

Liu

et al. 2017

Journal of Nanomaterials

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Carbon nanodots (C-dots) are recently discovered fluorescent carbon nanoparticles with typical sizes of <10 nm. The C-dots have been reported to have excellent photophysical and chemical characteristics. In recent years, the advances in the development and improvement in C-dots synthesis, characterization, and applications are burgeoning. In this review, we introduce the most commonly used techniques for the characterization of C-dots. The characterization techniques for C-dots are briefly classified, described, and illustrated with applied examples. In addition, the analytical separation methods for C-dots (including electrophoresis, chromatography, density gradient centrifugation, differential centrifugation, solvent extraction, and dialysis) are included and discussed according to their analytical characteristics. The review concludes with an outlook towards the future developments in the characterization and the analytical separation of C-dots. The comprehensive overview of the characterization and the analytical separation techniques will safeguard people to use each technique more wisely.

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Section: X-ray Diffractionmentioning

confidence: 99%

Characterization and Analytical Separation of Fluorescent Carbon Nanodots

Gong

Liu

et al. 2017

Journal of Nanomaterials

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“…It is mainly applied in biological labeling, optoelectronic devices, sensors, photocatalyst, etc. [24][25][26][27] Again, CD is used as one of the interesting, useful and cost effective nanomaterials in epoxy, poly(ester amide), waterborne polyurethane, etc. 28 31 Thus, literature remains silent on the use of CD in polymer system without using organic solvent.…”

Section: Introductionmentioning

confidence: 99%

Biodegradable tough waterborne hyperbranched polyester/carbon dot nanocomposite: approach towards an eco-friendly material

Hazarika

Karak

2016

Green Chem.

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In this study, environmentally friendly waterborne hyperbranched polyester/carbon dot (CD) nanocomposites were fabricated by in situ polymerization through a facile and greener route in absence of catalyst, solvent and neutralizing agent. Three nanocomposites were prepared at different loadings of CD (0.1, 0.5 and 1 wt %). CD was prepared from citric acid and glycerol in presence of cost free cow urine through a one step greener method. The structural attributes of the nanocomposites were evaluated by transmission electron microscopy, X-ray diffraction, Fourier transform infrared and UV-visible spectroscopic studies. The thermosets were obtained by curing the polyester nanocomposite with glycerol based hyperbranched epoxy and fatty acid based poly(amido amine) hardener. The nanocomposites exhibited excellent wavelength dependent down-and up-conversion fluorescence properties. The significant improvements in mechanical properties like tensile strength (7.8 -47 MPa), Young's modulus (243 -745 MPa), toughness (17.82 -51.1 MJm -3 ) and scratch hardness (4 -10 kg) were observed for the thermosetting nanocomposites. Thermogravimetrc analysis supports high thermostability (234 -265 °C) while differential scanning calorimetry authenticated glass transition temperature in the range of 49-56 °C. The rheological study demonstrated shear thining behaviour. The nanocomposite films exhibited good transparency in the visible range. Further, thermosetting nanocomposites were found to be highly biodegradable by Bacillus subtilis and Pseudomonas aeruginosa bacterial strains. The nanocomposite also possesses efficient self-cleaning ability as observed by photodegradation of formaldehyde (within 7 h) and methylene blue (80 min) under exposure of normal sunlight. Thus, this nanocomposite could be used as a promising eco-friendly material for advanced applications.

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“…S3, Supporting Information) exhibited a broad diffraction peak at 2θ = 23.7 , which was attributed to the amorphous carbon phase. 35 XPS. As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

One-step Synthesis of Highly Luminescent Nitrogen-doped Carbon Dots for Selective and Sensitive Detection of Mercury(II) Ions and Cellular Imaging

Liu

Liao

et al. 2015

ANAL. SCI.

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Amphibious fluorescent carbon dots: one-step green synthesis and application for light-emitting polymer nanocomposites

Abstract: A facile and green approach for the synthesis of amphibious fluorescent carbon dots (CDs) from natural polysaccharide is reported. Light-emitting polymer nanocomposites with excellent optical performance can be easily prepared by incorporation of the amphibious CDs into the polymer matrix.

Cited by 152 publications

References 23 publications

Characterization and Analytical Separation of Fluorescent Carbon Nanodots

Characterization and Analytical Separation of Fluorescent Carbon Nanodots

Biodegradable tough waterborne hyperbranched polyester/carbon dot nanocomposite: approach towards an eco-friendly material

One-step Synthesis of Highly Luminescent Nitrogen-doped Carbon Dots for Selective and Sensitive Detection of Mercury(II) Ions and Cellular Imaging

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