Synthesis of carbon quantum dots via electrochemically-induced carbon dioxide nanobubbles exfoliation of graphite for heavy metal detection in wastewater

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(3), С. 112715 - 112715

Опубликована: Апрель 5, 2024

Carbon quantum dots (CQDs) offer significant promise across industries due to their distinctive optical properties and strong biocompatibility. However, conventional synthesis methods frequently need more precision in controlling nanoparticle size, shape, uniformity, limiting versatility diverse applications. Therefore, this study introduced an innovative approach synthesising CQDs by combining electrochemical techniques with carbon dioxide (CO2) nanobubbles, circumventing the for surfactant-based exfoliation. According findings, synthesised exhibited remarkable properties, including a high yield of 26.17% average particle size 2.24 ± 1.07 nm. Such characteristics render them exceptionally suitable portable sensors heavy metal detection wastewater. Moreover, investigation revealed outstanding selectivity CQDs, particularly towards iron (Fe3+) ions, but demonstrated limited reactivity lead (Pb2+) copper (Cu2+) ions. The novel also generated non-toxic CQD under supply CO2 which offers scalable avenue developing advanced materials various applications, ion method that relied on sodium dodecyl sulphate (SDS) surfactants without nanobubbles yielded significantly lower 11.2%. In short, incorporating enhanced superior control over shape synthesized CQDs. This successfully produced distinct morphologies provided new understanding mechanism, potential applications sensing environmental monitoring water quality management.

Язык: Английский

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Advancements in the synthesis of carbon dots and their application in biomedicine

Journal of Photochemistry and Photobiology B Biology, Год журнала: 2024, Номер 255, С. 112920 - 112920

Опубликована: Апрель 21, 2024

Язык: Английский

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La doped-Fe2(MoO4)3 with the synergistic effect between Fe2+/Fe3+ cycling and oxygen vacancies enhances the electrocatalytic synthesizing NH3

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 677, С. 264 - 272

Опубликована: Июль 30, 2024

Язык: Английский

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Recent Advances in Biomass‐Derived Quantum Dots, Synthesis, and Their Applications

ChemistrySelect, Год журнала: 2025, Номер 10(6)

Опубликована: Фев. 1, 2025

Abstract The development of biomass‐derived nanomaterials like carbon nanotubes (CNT), graphene, and nanofibers has revolutionized multiple domains in the scientific industrial communities. Notably, quantum dots (QDs), such as (CQDs) synthesized from biomass, have garnered significant attention for their synthesis biomass sources, marking a shift toward sustainability eco‐friendliness. Quantum (QDs) are 0D type nanoparticles whose properties typically depend on shape, size, materials used synthesis. This review outlines top–down bottom–up approaches CQD production lignocellulosic algal sources. It also discusses various characterization techniques focusing optical structural properties. Furthermore, article elaborates applications CQDs, catalysis, supercapacitors, drug delivery. provides comprehensive overview synthesis, characterization, versatile utility using green sustainable source material. is to be noted that CQDs demonstrate characteristics comparable or superior those metal‐based semiconductor dots, organically CQDs.

Язык: Английский

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Carbon quantum dots as efficient cocatalysts in Fenton-like processes: Preparation optimization and mechanistic insights

Journal of Hazardous Materials, Год журнала: 2025, Номер 489, С. 137607 - 137607

Опубликована: Фев. 15, 2025

Язык: Английский

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Performance and Mechanism Analysis of Hexagonal Co(OH)F/Carbon Quantum Dots Composite Sensor Synthesized by PVP-Assisted Method for Acetone Gas Detection

ACS Sensors, Год журнала: 2025, Номер unknown

Опубликована: Март 28, 2025

Acetone gas sensitivity detection holds significant application value in environmental monitoring, industrial safety, and health assessment. This study presents the first report on assembly of carbon quantum dots (CQDs) surface hollow hexagonal Co(OH)F for efficient acetone detection. The fabricated sensor exhibits ability to detect at a low concentration 200 ppb 120 °C, demonstrating excellent moisture resistance long-term stability. incorporation CQDs not only reduces operating temperature but also enhances gas-sensing performance Co(OH)F, offering simple eco-friendly strategy optimizing sensors. We systematically analyzed synergistic effect between their role functional groups combine with surface, improving electron transfer efficiency potentially lowering activation energy molecule reactions through catalytic effects, enabling low-temperature modification chemistry by strengthens recognition capability. coupling metal hydroxyl fluoride plays crucial multiple mechanisms, providing an innovative approach development high-performance

Язык: Английский

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Facile, Noninvasive, and Chemical-Free Hydrogen Peroxide and Glucose Detection Using a Fluorescent Cellulose Hybrid Film Embedded with PtRu/Carbon Dots

ACS Measurement Science Au, Год журнала: 2025, Номер unknown

Опубликована: Апрель 7, 2025

Язык: Английский

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Size-optimized Prussian blue and oxygen-doped carbon nanotubes encapsulation: A catalyst in electro-Fenton for antibiotic degradation

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 694, С. 137644 - 137644

Опубликована: Апрель 17, 2025

Язык: Английский

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Carboxymethylcellulose and rare earth metal cation self-assembly: Tunable encapsulation of carbon dots in a multifunctional transparent film

Chemical Engineering Journal, Год журнала: 2024, Номер 496, С. 154275 - 154275

Опубликована: Июль 24, 2024

Язык: Английский

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Using Flow-Through Reactor to Enhance Ferric Ions Electrochemical Regeneration in Electro-Fenton for Wastewater Treatment

Process Safety and Environmental Protection, Год журнала: 2024, Номер 191, С. 907 - 916

Опубликована: Сен. 4, 2024

Язык: Английский

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