Enzyme-free carbon dots@MgO nanocomposite as an efficient sensor for on-site detection and degradation of paraoxon toxins

Liu, Bo; Cai, Meijie; Feng, Xiangling; Lu, Siyu; Lin, Song; Tian, Feng

doi:10.1016/j.carbon.2023.118003

Cited by 7 publications

(1 citation statement)

References 65 publications

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“…Among the most used materials for the study of contaminants within bodies of water that can be considered organic, ecological, environmentally friendly, or, to a certain extent, sustainable are carbon dots (CDs); this is because they can be synthesized, through chemical reagents as well as organic raw materials, such as seeds, peels, leaves, plants, etc. The use of proteins, such as enzymes, has also been increasing because they are used as a support, catalyst agent, or support material in functionalization with CDs or NPs to detect contaminants, drug delivery, etc. Table presents nanomaterials of organic origin and their application and compounds that use carbonaceous structures. , …”

Section: -Nitrophenol Reductionmentioning

confidence: 99%

Advances in 4-Nitrophenol Detection and Reduction Methods and Mechanisms: An Updated Review

Cardoso Juarez,

Ivan Ocampo Lopez,

Kesarla

et al. 2024

ACS Omega

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This review emphasizes the progress in identifying and eliminating para-nitrophenol (4-NP), a toxic organic compound. It covers various strategical methods and materials, including organic and inorganic nanomaterials, for detecting and reducing 4-NP. Detection techniques such as electrochemical methods. Optical fiber-based surface plasmon resonance and photoluminescence, as well as the mechanisms of Forster Resonance Energy Transfer (FRET) and Inner Filter Effect (IFE) in fluorescence detection, are presented. Removal techniques for this contaminant include homogeneous catalysis, electrocatalysis, photocatalysis, and thermocatalysis, and their reaction mechanisms are also discussed. Further, the theoretical perspectives of 4-NP detection and reduction, parameters influencing the activities, and future perspectives are also reviewed in detail.

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Section: -Nitrophenol Reductionmentioning

confidence: 99%

Advances in 4-Nitrophenol Detection and Reduction Methods and Mechanisms: An Updated Review

Cardoso Juarez,

Ivan Ocampo Lopez,

Kesarla

et al. 2024

ACS Omega

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Interfacial Engineering of Fluorescent Carbon Dots with Metal Oxides for Real‐Time Visualization of Oxygen Vacancy Dynamics

Jiang,

Cao,

et al. 2024

Small

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Oxygen vacancy (Vo), as one of the most common surface defects, significantly influence the physiochemical properties of metal oxides. However, it remains a challenge for existing techniques to visualize the evolution of Vo during redox process due to its heterogeneous distribution, small size, and dynamic nature. Herein, the real‐time monitoring of such microscopic interfacial events is reported by advantage of the high‐contrast fluorescence response of carbon dots (H‐CDs) to Vo. The green emissive H‐CDs possess a unique disc‐shaped structure and exceptional hydrophilicity, allowing their tight adhesion to the surfaces of Vo‐rich MgO by simple mixing. Subsequently, a water involved interfacial reaction occurred between H‐CDs and Vo, resulting in gradual quenching of the original green emission and simultaneously emergence of bright red fluorescence. Moreover, the spatiotemporal diffusion dynamics and reaction kinetics are investigated by confocal laser scanning microscopy, revealing the time‐dependent reorganization and structural heterogeneity at the interface. The finding provides a new toolbox for in situ imaging of Vo‐triggered phenomena at a microscopic level, which will be helpful in promoting the rational design of oxide materials.

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Carbon dots-based hybrid materials: synthesis, properties and applications in environmental pollution control

Meng,

Shen,

Wang

et al. 2025

Chemical Engineering Journal

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Enzyme-free carbon dots@MgO nanocomposite as an efficient sensor for on-site detection and degradation of paraoxon toxins

Cited by 7 publications

References 65 publications

Advances in 4-Nitrophenol Detection and Reduction Methods and Mechanisms: An Updated Review

Advances in 4-Nitrophenol Detection and Reduction Methods and Mechanisms: An Updated Review

Interfacial Engineering of Fluorescent Carbon Dots with Metal Oxides for Real‐Time Visualization of Oxygen Vacancy Dynamics

Carbon dots-based hybrid materials: synthesis, properties and applications in environmental pollution control

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