A Fluorescence Turn On–off-on Method for Sensitive Detection of Sn2+ and Glycine Using Waste Eggshell Membrane Derived Carbon Nanodots as Probe

Wu, Sifei; Fang, Linxia; Li, Yihan; Wang, Haibo; Zhang, Hongding

doi:10.1007/s10895-022-03133-8

Cited by 6 publications

(1 citation statement)

References 39 publications

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“…24–27 Fortunately, heteroatom-doped carbon dots that are obtained from the hydrothermal treatment of precursors that contain nitrogen/sulfur moieties exhibit an enhanced fluorescence emission when compared to their pristine CD counterpart. 28–31 For instance, various compounds with a high nitrogen and carbon content, such as o -phenylenediamine, phthalonitriles, benzoxazines and melamine, have been employed as precursors to prepare nitrogen-doped CDs with enhanced fluorescent quantum yields for sensing or bio-imaging applications. 32–35 Moreover, different concentrated acids (H 2 SO 4 , HNO 3 , H 3 PO 4 ) are also used as additional sources to synthesize heteroatom-doped carbon nanodots (CDs) via hydrothermal protocols.…”

Section: Introductionmentioning

confidence: 99%

A cross-linkable phthalonitrile derivative as a precursor to synthesize nitrogen-doped carbon nanodots for Ni ion detection

Fan,

Ran,

et al. 2023

New J. Chem.

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Section: Introductionmentioning

confidence: 99%

A cross-linkable phthalonitrile derivative as a precursor to synthesize nitrogen-doped carbon nanodots for Ni ion detection

Fan,

Ran,

et al. 2023

New J. Chem.

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Fluorescent carbon dots synthesized by waste wind turbine blade for photocatalytic degradation

Wang,

Yang,

Chu

et al. 2023

Luminescence

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Developing novel waste recycling strategies has become a feasible solution to overcome environmental pollution. In this work, a method of using waste wind turbine blade (WTB) as a carbon source to synthesize blue fluorescent carbon dots (B‐CDs) by hydrothermal treatment is proposed. B‐CDs are spherical and have an average particle size of 5.2 nm. The surface is rich in C–O, C=O, −CH3, and N–H bond functional groups, containing five elements: C, O, N, Si, and Ca. The optimal emission wavelength of B‐CDs is 463 nm, corresponding to an excitation wavelength of 380 nm. Notably, a relatively high quantum yield of 29.9% and a utilization rate of 40% were obtained. In addition, B‐CDs can serve as a photocatalyst to degrade methylene blue dye, with a degradation efficiency of 64% under 40‐min irradiation conditions. The presence of holes has a significant influence on the degradation process.

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Fluorescence Turn‐Off‐On Sensing Strategy for the Detection of Pb²⁺ and Metalaxyl Fungicide Using Yellow Fluorescent Carbon Dots From Cordia dichotoma Fruits

Vadia,

Malek,

Park

et al. 2024

Luminescence

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In this work, a facile and rapid fluorescence turn‐off‐on sensing method was developed for the detection of Pb2+ and metalaxyl fungicide in environmental samples using yellow carbon dots (CDs) from Cordia dichotoma fruits. The prepared C. dichotoma‐CDs showed the emission band (𝜆Em) at 535 nm under 448 nm of excitation wavelength. The fluorescence intensity of C. dichotoma‐CDs quenches by Pb2+ ion and then restores by metalaxyl fungicide, favoring to develop a fluorescence turn‐off‐on sensing strategy. The intensity ratios (I0/I and I/I0) are linear against Pb2+ (0.01–50 μM) and metalaxyl fungicide (0.025–10 μM) concentrations, offering the detection limits of 0.0054 and 0.0087 μM for Pb2+ and metalaxyl fungicide, respectively. Additionally, the potential application of C. dichotoma‐CD‐based fluorescence turn‐off‐on sensing approach was effectively demonstrated for Pb2+ and metalaxyl fungicide assays in real samples, which confirms that C. dichotoma‐CDs act as “turn‐off‐on” fluorescent probe for assaying of Pb2+ and metalaxyl fungicide, respectively.

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A Fluorescence Turn On–off-on Method for Sensitive Detection of Sn2+ and Glycine Using Waste Eggshell Membrane Derived Carbon Nanodots as Probe

Cited by 6 publications

References 39 publications

A cross-linkable phthalonitrile derivative as a precursor to synthesize nitrogen-doped carbon nanodots for Ni ion detection

A cross-linkable phthalonitrile derivative as a precursor to synthesize nitrogen-doped carbon nanodots for Ni ion detection

Fluorescent carbon dots synthesized by waste wind turbine blade for photocatalytic degradation

Fluorescence Turn‐Off‐On Sensing Strategy for the Detection of Pb²⁺ and Metalaxyl Fungicide Using Yellow Fluorescent Carbon Dots From Cordia dichotoma Fruits

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A Fluorescence Turn On–off-on Method for Sensitive Detection of Sn2+ and Glycine Using Waste Eggshell Membrane Derived Carbon Nanodots as Probe

Cited by 6 publications

References 39 publications

A cross-linkable phthalonitrile derivative as a precursor to synthesize nitrogen-doped carbon nanodots for Ni ion detection

A cross-linkable phthalonitrile derivative as a precursor to synthesize nitrogen-doped carbon nanodots for Ni ion detection

Fluorescent carbon dots synthesized by waste wind turbine blade for photocatalytic degradation

Fluorescence Turn‐Off‐On Sensing Strategy for the Detection of Pb2+ and Metalaxyl Fungicide Using Yellow Fluorescent Carbon Dots From Cordia dichotoma Fruits

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Product

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Fluorescence Turn‐Off‐On Sensing Strategy for the Detection of Pb²⁺ and Metalaxyl Fungicide Using Yellow Fluorescent Carbon Dots From Cordia dichotoma Fruits