Microwave synthesis of fluorescent carbon nanoparticles with electrochemiluminescence properties

Zhu, Hui; Wang, Xiaolei; Li, Yali; Wang, Zhongjun; Yang, Fan; Yang, Xiurong

doi:10.1039/b907612c

Cited by 1,216 publications

(852 citation statements)

References 29 publications

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“…49 Similarly, water dispersible C-dots were prepared by controlled pyrolysis of dopamine, 54 lauryl gallate, 55 polyethylenimine, 56 or a mixture of ethanolamine and citric acid. 57 , 58 In a remarkably time-effi cient modifi cation of the method, microwave-assisted thermal treatment of an aqueous solution containing PEG 48 or a mixture of PEG and a saccharide 59 leads rapidly to selfpassivated colloidal aC-dots. Ultrasmall aC-dots with quantum yield up to 47% have been derived by 1 min pyrolysis of anhydrous citric acid in N -( β -aminoethyl)-γ -aminopropyl methyldimethoxy silane.…”

Section: In Situ Formation Of Functional Groupsmentioning

confidence: 99%

From highly graphitic to amorphous carbon dots: A critical review

Kelarakis

2014

MRS Energy & Sustainability

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Graphitic and amorphous C-dots share common characteristics in their photoluminescence behavior. However, the graphitic dots have a lead as electrocatalyst for fuel cells, sensitizers, and electron acceptors for solar cells.The emergence of carbogenic nanoparticles (C-dots) as a new class of photoluminescent (PL) nanoemitters is directly related to their economical preparation, nontoxic nature, versatility, and tunability. C-dots are typically prepared by pyrolytic or oxidative treatment of suitable precursors.While the surface functionalities critically affect the dispersibility and the emission intensity of C-dots in a given environment, it is the nature of the carbogenic core that actually imparts certain intrinsic properties. Depending on the synthetic approach and the starting materials, the structure of the carbogenic core can vary from highly graphitic all the way to completely amorphous. This critical review focuses on correlating the functions of C-dots with the graphitic or amorphous nature of their carbogenic cores. The systematic classifi cation on that basis can provide insights on the origins of their intriguing photophysical behavior and can contribute in realizing their full potential in challenging applications.Keywords : luminescence ; nanostructure ; carbonization REVIEW DISCUSSION POINT ▪ C-dots set an example that low-cost, non-toxic materials can effectively supplant highly engineered, yet toxic compounds in challenging applications.

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Section: In Situ Formation Of Functional Groupsmentioning

confidence: 99%

From highly graphitic to amorphous carbon dots: A critical review

Kelarakis

2014

MRS Energy & Sustainability

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“…However, the large scale preparation and surface passivation of C-dots are still expected to provide highly fluorescent C-dots by using economical and facile approaches. Up to now, various carbon sources have been used to prepare C-dots such as laser ablation of graphite [19,20], electrochemical treatment of graphite [21], commercial activated carbon by bottom-up method [9], heating carbohydrate, watermelon peels or PEG with microwave pyrolysis [22][23][24]. The prepared C-dots are highly water-soluble, nano-sized and multi-colourful.…”

Section: Introductionmentioning

confidence: 99%

Enhanced photoluminescence and characterization of multicolor carbon dots using plant soot as a carbon source

Tan

Zhang

Tang

et al. 2013

Talanta

116

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“…16 Currently, various methods like chemical ablation, 17 electrochemical carbonization, 18 laser ablation, 19 microware irradiation 20 and hydrothermal/solvothermal treatment 21 have been used for the synthesis of CDs. Among these, microwave irradiation technique stands out due to its advantages, like increased reaction rates, uniform heating, improved product yields, broad dynamic temperature range and environment friendly nature.…”

Section: Introductionmentioning

confidence: 99%

Fluorescence Determination of Glutathione Using Tissue Paper-derived Carbon Dots as Fluorophores

et al. 2017

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Glutathione is an important antioxidant found in body fluids and tissues, which inhibit damage to essential cellular constituents caused by reactive oxygen species. The analysis of glutathione levels in biological systems is important in early clinical diagnosis. A novel, cost-effective synthetic strategy has been developed for the fluorescent probe ethylenediamine passivated carbon dots. Tissue paper was chosen as the carbon source for this "green one pot" synthesis. Glutathione could induce quenching of the fluorescence intensity of ethylenediamine passivated carbon dots through surface interactions, resulting from their aggregation. Based on this, a novel fluorescence sensor was fabricated for the determination of Glutathione in body fluids. A linear calibration graph was obtained in the range of 6.0 × 10 -7 to 5.0 × 10 -8 M with a detection limit of 1.74 × 10 -9 M. The developed sensor was successfully used for the determination of glutathione in artificial saliva samples.

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Microwave synthesis of fluorescent carbon nanoparticles with electrochemiluminescence properties

Abstract: We present a facile, economical microwave pyrolysis approach to synthesize fluorescent carbon nanoparticles with electrochemiluminescence properties.

Cited by 1,216 publications

References 29 publications

From highly graphitic to amorphous carbon dots: A critical review

From highly graphitic to amorphous carbon dots: A critical review

Enhanced photoluminescence and characterization of multicolor carbon dots using plant soot as a carbon source

Fluorescence Determination of Glutathione Using Tissue Paper-derived Carbon Dots as Fluorophores

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