Green one-pot preparation of carbon dots (CD)-embedded cellulose transparent film for Fe3+ indicator using ionic liquid

Woo, Jeongyeon; Song, Younghan; Ahn, Jungbin; Kim, Hyungsup

doi:10.1007/s10570-020-03099-5

Cited by 36 publications

(22 citation statements)

References 68 publications

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“…The strong absorbance in the UV region 200–400 nm, followed by a tail extended to the visible region, is known to be a typical feature of carbon dots (Liu et al 2020 ), which may be produced during the thermal decomposition of wood. Indeed, the production of several types of carbogenic materials including carbon dots, as a result of hydrothermal carbonization of cellulose, was earlier reported (Woo et al 2020 ). Given that one of the unique properties of carbon dots are the dependence of the photoluminescence emission maximum on the excitation wavelength (λexc), we next recorded emission spectra of WP at λexc progressively increased from 300 to 400 nm.…”

Section: Resultsmentioning

confidence: 99%

“…The strong absorbance in the UV region 200-400 nm, followed by a tail extended to the visible region, is known to be a typical feature of carbon dots (Liu et al 2020), which may be produced during the thermal decomposition of wood. Indeed, the production of several types of carbogenic materials including carbon dots, as a result of hydrothermal carbonization of cellulose, was earlier reported (Woo et al 2020).…”

Section: % In Classmentioning

confidence: 98%

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A comparative study of wood sawdust and plastic smoke particulate matter with a focus on spectroscopic, fluorescent, oxidative, and neuroactive properties

Tarasenko

Pozdnyakova

Paliienko

et al. 2022

Environ Sci Pollut Res

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Here, water-suspended smoke aerosol preparation was synthesized from biomass-based fuel, i.e., a widespread product for residential heating, wood sawdust (WP) (pine, poplar, and birch mixture), and its properties were compared in parallel experiments with the smoke preparation from plastics (PP). Molecular groups in the PM preparations were analyzed using Raman and Fourier-transform infrared spectroscopy. WP was assessed in neurotoxicity studies using rat cortex nerve terminals (synaptosomes). Generation of spontaneous and H 2 O 2 -evoked reactive oxygen species (ROS) detected using fluorescent dye 2′,7′-dichlorofluorescein in nerve terminals was decreased by WP. In comparison with PP, WP demonstrated more pronounced reduction of spontaneous and H 2 O 2 -evoked ROS production. WP completely inhibited glutamate receptor agonist kainate-induced ROS production, thereby affecting the glutamate receptor-mediated signaling pathways. WP decreased the synaptosomal membrane potential in fluorimetric experiments and the synaptosomal transporter-mediated uptake of excitatory and inhibitory neurotransmitters, L-[ 14 C]glutamate and [ 3 H] γ-aminobutyric acid (GABA), respectively. PP decreased the ambient synaptosomal level of [ 3 H]GABA, whereas it did not change that of L-[ 14 C]glutamate. Principal difference between WP and PP was found in their ability to influence the ambient synaptosomal level of [ 3 H]GABA (an increase and decrease, respectively), thereby showing riskiness in mitigation of synaptic inhibition by PP and triggering development of neuropathology.

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Section: Resultsmentioning

confidence: 99%

Section: % In Classmentioning

confidence: 98%

A comparative study of wood sawdust and plastic smoke particulate matter with a focus on spectroscopic, fluorescent, oxidative, and neuroactive properties

Tarasenko

Pozdnyakova

Paliienko

et al. 2022

Environ Sci Pollut Res

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“…Therefore, exploring the interrelationship of different lignocellulosic components in different time dimensions is of great significance for clarifying the microscopic morphology, degree of graphitization, and nucleation growth pathways of LC‐CDs. Comparing the size of LC‐CDs prepared from lignin, [51,89] cellulose, [58,78,86,90] and hemicellulose, [66,87,91] most of these are less than 5 nm and slightly smaller than the generally recognized size of CDs (10 nm). LC‐CDs cannot form a solution in water, but they will form a colloid that is stably dispersed in water, which is related to a large number of hydrophobic alkyl groups, hydrophilic hydroxy groups, and carboxyl groups on their surfaces [59] .…”

Section: Properties Of Lc‐cdsmentioning

confidence: 88%

Preparation, Properties, and Application of Lignocellulosic‐Based Fluorescent Carbon Dots

Song

Zhao

et al. 2022

ChemSusChem

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Carbon dots (CDs) are a relatively new type of fluorescent carbon material with excellent performance and widespread application. As the most readily available and widely distributed biomass resource, lignocellulosics are a renewable bioresource with great potential. Research into the preparation of CDs with lignocellulose (LC‐CDs) has become the focus of numerous researchers. Compared with other carbon sources, lignocellulose is low cost, rich in structural variety, exhibits excellent biocompatibility,[1] and the structures of CDs prepared by lignin, cellulose, and hemicellulose are similar. This Review summarized research progress in the preparation of CDs from lignocellulosics in recent years and reviewed traditional and new preparation methods, physical and chemical properties, optical properties, and applications of LC‐CDs, providing guidance for the formation and improvement of LC‐CDs. In addition, the challenges of synthesizing LC‐CDs were also highlighted, including the interaction of different lignocellulose components on the formation of LC‐CDs and the nucleation and growth mechanism of LC‐CDs; from this, current trends and opportunities of LC‐CDs were examined, and some research methods for future research were put forward.

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“…The morphologies of carbon quantum dots are mostly hemispherical. Their structures can be amorphous, graphitic or C 3 N 4 crystalline core [10,11]. Functional groups found in carbon quantum dots have given them various properties.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of N-Doped Carbon Quantum Dots by Hydrothermal Synthesis Method and Investigation of Optical Properties

Başkaya

Çeşme

2021

Türk Doğa Ve Fen Dergisi

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Carbon quantum dots (CQDs); It is a carbon-based nanomaterial that has become popular in recent years due to its advantages such as biocompatibility, tunable fluorescent properties, simple and economical synthesis methods. In this study, synthesis of N-doped carbon quantum dots by hydrothermal synthesis method using tangerine juice, onion shell and ethylenediamine was investigated. The structures and optical properties of the synthesized carbon quantum dots were illuminated by photoluminescence (PL), X-ray Diffractometer (XRD), Infrared (IR) and UV-vis spectrometer. Electrochemical properties were examined by the cyclic voltammetry (CV) technique. The stability of N-doped carbon quantum dots (at 1st, 10th, 15th and 26th days) and pH-dependent emission properties were investigated. Peaks are seen at 285 nm and 347 nm in the UV-vis spectrum proved the presence of C=O and C=N bonds. It has been observed that there is a redshift in the absorption peak due to the amine groups in the structure of the Ndoped carbon quantum dots. As a result of the XRD analysis, it was seen that the N-doped carbon quantum dots were in an amorphous structure. The FTIR spectrum of N-doped carbon quantum dots characteristic absorption bands of shows N-H vibration stretching and C-H bending peaks at 3240 and 2923 cm -1 , respectively. These functional groups seen in the structure showed that N-CQD is bonded by hydrogen bond. In 1574 cm -1 and 1336 cm -1 C=O vibration stretching peaks and C-N vibration stretching peaks are observed. In the next step, the electrochemical properties of the carbon dots were examined by cyclic voltammetry technique. Different scanning rates (10-1000 mV/s) were used to understand and clarify the substance (mass) transport to the electrode surface.

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Green one-pot preparation of carbon dots (CD)-embedded cellulose transparent film for Fe3+ indicator using ionic liquid

Cited by 36 publications

References 68 publications

A comparative study of wood sawdust and plastic smoke particulate matter with a focus on spectroscopic, fluorescent, oxidative, and neuroactive properties

A comparative study of wood sawdust and plastic smoke particulate matter with a focus on spectroscopic, fluorescent, oxidative, and neuroactive properties

Preparation, Properties, and Application of Lignocellulosic‐Based Fluorescent Carbon Dots

Synthesis of N-Doped Carbon Quantum Dots by Hydrothermal Synthesis Method and Investigation of Optical Properties

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