Synthesis and applications of carbon dots from waste biomass

Mehta, Mayank R.; Bhikhu, More; Gaurav, Shah

doi:10.1016/b978-0-323-98350-1.00008-6

Cited by 5 publications

(1 citation statement)

References 50 publications

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“…The produced BCDs had a quantum yield of 6.9% and a particle size that varied from 2 to 4 nm [110](Figure 8d). However, compared to BCDs made from the majority of other carbon sources, the quantum yield of BCDs made from orange juice was 26% greater [111,112]. Additionally, the prepared BCDs have a size of 2.5 nm.…”

Section: Hydrothermal Methodsmentioning

confidence: 95%

Carbon Dots for Future Prospects: Synthesis, Characterizations and Recent Applications: A Review (2019–2023)

Etefa,

Tessema,

Dejene

2024

Preprint

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Nanotechnology sparks discussions and concerns about the impacts of new nanomaterials on health and the environment. It holds importance in various domains due to its unique struc-tures. Carbon dots (C-dots) are versatile nanomaterials with applications in bioimaging, sensing, catalysis, polymers, solar cells, and more. They offer desirable characteristics such as stability, cost-effectiveness, biocompatibility, and high photoluminescent quantum yield. C-dots have the potential to replace expensive fluorophores in solar cells. They are catego-rized as carbon quantum dots, graphene quantum dots, and carbonized polymer dots. C-dots have outstanding optical and photoelectric properties with low toxicity. Bottom-up and top-down approaches are used for the synthesis of carbon dots (CDs), with each method im-pacting their physicochemical characteristics. The choice of synthesis method depends on de-sired properties and application requirements. Researchers combine these methods and ex-plore new approaches to enhance synthesis efficiency and tailor CD properties. CDs have di-verse chemical structures with modified oxygen, polymer-based, or amino groups on their surface. Various characterization methods such as HRTEM, XPS, and optical analysis (PL, UV) are used to determine CD structure. Carbon dots (CDs) are cutting-edge fluorescent nano-materials with remarkable qualities such as biocompatibility, low toxicity, environmental friendliness, high water solubility, and photo-stability. They are easily adjustable in terms of their optical properties, making them highly versatile in various fields. CDs find applications in bio-imaging, nanomedicine, drug delivery, solar cells, LEDs, photo-catalysis, elec-tro-catalysis, and other related areas.

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Section: Hydrothermal Methodsmentioning

confidence: 95%

Carbon Dots for Future Prospects: Synthesis, Characterizations and Recent Applications: A Review (2019–2023)

Etefa,

Tessema,

Dejene

2024

Preprint

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Green Carbon Quantum Dots—Environmental Applications

Venugopalan,

Vidya

2024

Engineering Materials

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Carbon quantum dots: synthesis, properties and multifaceted applications in biomedical imaging, environmental remediation and sensing technologies

Jebanisha,

Devi

2024

Phys. Scr.

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With a dimension of roughly 10 nm, carbon quantum dots (CQDs) are an intriguing family of carbon nanoparticles. Various fabrication techniques, such as ultrasonication, electrochemical oxidation, hydrothermal reaction, laser ablation, microwave irradiation, and reflux, lead to CQD synthesis through processes including pyrolysis, carbonization, oxidation, and polymerization. Sustainable raw materials are often utilized, aligning with environmental concerns and waste reduction efforts. CQDs exhibit low toxicity, chemical inertness, remarkable biocompatibility, and highly adjustable photoluminescence behaviour, owing to their semiconductor-like properties and oxygen based functional groups. Their tiny particle sizes contribute to highly photoluminescent emissions and controllable fluorescence. In biomedical applications, CQDs show promise for imaging, drug delivery, and sensing due to their biocompatibility and tunable optical properties. In environmental contexts, they hold potential for wastewater treatment, heavy metal detection, and ion sensing, leveraging their adsorption capabilities and photoluminescence. This review explores the synthesis methods, physical and chemical characteristics, and diverse applications of CQDs, particularly focusing on their potential in biomedical imaging, environmental remediation, and sensing technologies.

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Synthesis and applications of carbon dots from waste biomass

Cited by 5 publications

References 50 publications

Carbon Dots for Future Prospects: Synthesis, Characterizations and Recent Applications: A Review (2019–2023)

Carbon Dots for Future Prospects: Synthesis, Characterizations and Recent Applications: A Review (2019–2023)

Green Carbon Quantum Dots—Environmental Applications

Carbon quantum dots: synthesis, properties and multifaceted applications in biomedical imaging, environmental remediation and sensing technologies

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