Phosphorous doped carbon quantum dots as an efficient solid state electrochemiluminescence platform for highly sensitive turn-on detection of Cu2+ ions

Raju, Chikkili Venkateswara; Kalaiyarasan, Gopi; Paramasivam, Selvaraj; Joseph, James; S, Senthil Kumar

doi:10.1016/j.electacta.2019.135391

Cited by 49 publications

(20 citation statements)

References 49 publications

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“…1,2 With the characteristics of high power density, high charge and discharge efficiency, and long cycle life, electrochemical capacitors (EC) are considered as one of the advanced energy storage systems, playing a crucial role in bridging the gap between dielectric capacitors and traditional batteries. [3][4][5] Due to its high specic surface area, pore size, high physicochemical stability, electrochemical performance, and wettability, carbonbased porous materials, including carbon nanotubes, 6 graphene, 7,8 activated carbon, 9 and carbide-derived carbon 10 have been used extensively for electrode materials. There are many sources of materials for making carbon materials, such as fossil materials, polymers, and biomass.…”

Section: Introductionmentioning

confidence: 99%

Preparation of phosphorus-doped porous carbon for high performance supercapacitors by one-step carbonization

et al. 2020

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Section: Introductionmentioning

confidence: 99%

Preparation of phosphorus-doped porous carbon for high performance supercapacitors by one-step carbonization

et al. 2020

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“…Accordingly, the method was employed to detect Cu 2+ , a Fenton reagent, that results in the generation of more OH radicals from H 2 O 2 , resulting in enhanced ECL intensity. The developed P-CQD could detect as low as 0.27 nM Cu 2+ [ 183 ]. A sandwich-type novel ECL immunosensor was also fabricated to determine carcinoembryonic antigen (CEA) by using perylenetetracarboxylic acid (PTCA) and CQDs as dual luminophore, graphene as nanocarrier and S 2 O 8 2 − as a coreactant, which exhibited good performance for the detection of CEA in human serum samples.…”

Section: Cds In Optical-based Analyticalmentioning

confidence: 99%

Carbon Dots: An Emerging Smart Material for Analytical Applications

2021

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Carbon dots (CDs) are optically active carbon-based nanomaterials. These nanomaterials can change their light emission properties in response to various external stimuli such as pH, temperature, pressure, and light. The CD’s remarkable stimuli-responsive smart material properties have recently stimulated massive research interest for their exploitation to develop various sensor platforms. Herein, an effort has been made to review the major advances made on CDs, focusing mainly on its smart material attributes and linked applications. Since the CD’s material properties are largely linked to their synthesis approaches, various synthesis methods, including surface passivation and functionalization of CDs and the mechanisms reported so far in their photophysical properties, are also delineated in this review. Finally, the challenges of using CDs and the scope for their further improvement as an optical signal transducer to expand their application horizon for developing analytical platforms have been discussed.

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“…The quantum yield was 8%, however, when additional urea was added into the precursor, the obtained CDs with urea (u-CDs) had higher N doped content and higher S doped content too, which indicated a synergy effect that the extra N doped in CDs also facilitated the doping process of S. Further, as the higher content of N and S both in the CDs, the quantum yields raised to 69%, which can make other applications like fluorescent probe more available. PCQDs Hydroquinone Solvothermal Phosphorous tribromide 25.0 [102] P-GQDs Lecithin Solvothermal / 54-73 [104] P-CNDs Lactose Hydrothermal H 3 PO 4 62.0 [105] P-CQDs Trisodium citrate Hydrothermal Phosphoric acid 58.8 [106] Figure 13. a) Synthesis of S,N-BQD with inherent doping source.…”

Section: Multidoped Cdsmentioning

confidence: 99%

Structure and Interface Modification of Carbon Dots for Electrochemical Energy Application

Cheng

Xiang

Guo

et al. 2021

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Carbon dots (CDs) as new nanomaterials have attracted much attention in recent years due to their unique characteristics. Notably, structure and interface modification (carbon core, edge, defects, and functional groups) of CDs have been considered as valid methods to regulate their properties, which contain electron transfer effect, electrochemical activity, fluorescence luminescent, and so on. Additionally, CDs with ultrasmall size, excellent dispersibility, high specific surface area, and abundant functional groups can guarantee positive and extraordinary effects in electrical energy storage and conversion. Therefore, CDs are used to couple with other materials by constructing a special interface structure to enhance their properties. Here, diverse structural and interfacial modifications of CDs with various heteroatoms and synergy effects are systematically analyzed. And not only several main syntheses of CDs‐based composites (CDs/X) are summarized but also the merit and demerit of CDs/X in electrical energy storage are discussed. Finally, the applications of CDs/X in energy storage devices (supercapacitors, batteries) and electrocatalysts for practical applications are discussed. This review mainly provides a comprehensive summary and future prospect for synthesis, modification, and electrochemical applications of CDs.

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Phosphorous doped carbon quantum dots as an efficient solid state electrochemiluminescence platform for highly sensitive turn-on detection of Cu2+ ions

Cited by 49 publications

References 49 publications

Preparation of phosphorus-doped porous carbon for high performance supercapacitors by one-step carbonization

Preparation of phosphorus-doped porous carbon for high performance supercapacitors by one-step carbonization

Carbon Dots: An Emerging Smart Material for Analytical Applications

Structure and Interface Modification of Carbon Dots for Electrochemical Energy Application

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