A green solid-phase method for preparation of carbon nitride quantum dots and their applications in chemiluminescent dopamine sensing

Fan, Xiaoxue; Yang, Feng; Su, Yingying; Zhang, Lichun; Lv, Yi

doi:10.1039/c5ra05397h

Cited by 66 publications

(26 citation statements)

References 40 publications

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“…The same phenomenon was also studied by Lv and coworkers The radiative recombination of oxidant K 3 Fe(CN) 6 injected holes and electrons of the g‐CNQDs could account for the CL property of the g‐CNQDs–K 3 Fe(CN) 6 system (Figure ). Based on the significant quenching of dopamine (DA) on CL intensity, it was suggested that CDs–K 3 Fe(CN) 6 system can be utilized as a novel CL probe for the rapid determination of DA in serum samples with good recoveries.…”

Section: Cds‐assisted CL Systemssupporting

confidence: 57%

Carbon dots‐involved chemiluminescence: Recent advances and developments

2018

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In recent years, more and more nanomaterials‐based chemiluminescence (CL) systems have appeared to improve the sensitivity and expand the scope of the analytical applications with the explosive growth and development of nanomaterials and technology. As a fascinating class of luminescent carbon nanomaterials, carbon dots (CDs) are now substantially studied in fabricating CL based assays due to their unique optical and mechanical properties. Herein, we summarize and highlight the current developments of CDs‐involved weak or ultraweak CL systems, as well as the corresponding mechanisms and proper applications in some fields. CDs can take part in the CL reactions as oxidants, emitting species directly involved in redox oxidation, energy acceptors of CL energy transfer, or even catalysts involving other luminophores. In fact, they always have more than one role in many cases, owing to the formation of various excited species with short life in CL systems. Therefore, in this review article, the most recent progress of the different CDs‐assisted CL systems including the mechanisms and applications are presented. Finally, the conclusions and future prospects of this field are also discussed. The significant features of the CDs‐based CL systems may open up new prospects and challenges in a wider range of fields.

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Section: Cds‐assisted CL Systemssupporting

confidence: 57%

Carbon dots‐involved chemiluminescence: Recent advances and developments

2018

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“…Graphitic carbon nitrides (g‐C 3 N 4 ) are a type of two‐dimensional (2D) organic semiconductor that consists exclusively of covalently linked carbon and nitrogen atoms and have a structure similar to graphene. Due to the obvious advantages of bright photoluminescence, excellent biocompatibility, stability, and water dispersibility, g‐CNQDs are promising signal probes for CL sensors . Our group found initially that g‐CNQDs could be directly oxidized by NaClO to produce CL emission .…”

Section: Graphitic Carbon Nitride Quantum Dotsmentioning

confidence: 99%

“…The NaClO−g‐CNQDs CL system with high sensitivity and selectivity was applied to measure free chlorine in tap water. We also synthesized highly fluorescent g‐CNQDs using an easy, green synthesis route with one‐step pyrolyzation of solid melamine and EDTA at low temperatures. Strong CL occurred when g‐CNQDs were oxidized with K 3 [Fe(CN) 6 ] under alkaline conditions.…”

Section: Graphitic Carbon Nitride Quantum Dotsmentioning

confidence: 99%

Quantum dots‐based chemiluminescence probes: an overview

Song

Zhang

et al. 2019

Luminescence

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This mini-review describes the recent developments in quantum dots-based nanoprobes in liquid-phase chemiluminescence (CL) analysis. In the referenced reports, multiple quantum dots (QDs) were adopted as final emission species either after direct oxidation reactions (direct CL) or after chemiluminescence resonance energy transfer (indirect CL). This review does not include papers in which QDs have been used as enhancers, catalysts, carriers or quenchers in chemiluminescence systems. A brief overview on the CL mechanisms of various QDs-based nanoprobes and their analytical applications over the last decade is given, followed by comments on the future challenges and prospects in this field. KEYWORDS chemiluminescence (CL), nanoprobe, quantum dots (QDs)

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“…The Lv group recently reported that strong CL emission is observed when a strong oxidant, such as NaClO or K 3 [Fe(CN) 6 ], is injected into an aqueous solution of g‐CN QDs. This CL emission is believed to be generated by the radiative recombination of oxidant‐injected holes and thermally excited electrons in the g‐CN QDs ( Figure ).…”

Section: Using G‐cn Nanostructures and Nanocomposites To Construct Chmentioning

confidence: 99%

Tailored Graphitic Carbon Nitride Nanostructures: Synthesis, Modification, and Sensing Applications

Chen

Song

2017

Adv Funct Materials

154

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donating-driven property (e.g., catalysis and strong affinity to Lewis acid). These unique properties motivated huge activity in sensing applications of g-CN, indicating by the growing collection of publications concerning g-CN-based sensors, as displayed in Figure 3.This article reviews state-of-the-art sensing applications of nanostructured g-CN. We begin with a highlight of the diverse micro/nanostructures and nanocomposites of g-CN that are suitable for sensing applications and summarize the known signaling modes and sensing mechanisms. This is followed by a highlight of several interesting sensing examples. Finally, we also discuss new frontiers in the use of g-CN for sensing applications and identify existing challenges.

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A green solid-phase method for preparation of carbon nitride quantum dots and their applications in chemiluminescent dopamine sensing

Abstract: Schematic illustration for the preparation of g-CNQDs though a thermal condensation process and CL of the g-CNQDs–K3[Fe(CN)6] system.

Cited by 66 publications

References 40 publications

Carbon dots‐involved chemiluminescence: Recent advances and developments

Carbon dots‐involved chemiluminescence: Recent advances and developments

Quantum dots‐based chemiluminescence probes: an overview

Tailored Graphitic Carbon Nitride Nanostructures: Synthesis, Modification, and Sensing Applications

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