Self-Precipitation of Highly Purified Red Emitting Carbon Dots as Red Phosphors

The Journal of Physical Chemistry Letters, Год журнала: 2023, Номер 14(41), С. 9176 - 9182

Опубликована: Окт. 5, 2023

Colloidal carbon dots (C-dots) have attracted a great deal of attention for their unique optical properties. However, it is still challenge to obtain highly purified C-dots without using multiple-step purification or postsize selection. In this work, self-precipitation hydrothermal reaction was used synthesize red-emitting (R-C-dots) o-phenylenediamine (o-PDA) as precursor any catalyst. The R-C-dots are able precipitate on the wall reactor, which enables us solid-state with high purity. photoluminescence quantum yield (PLQY) 36.75%, among highest PLQY values reported previously catalysts. transient PL and absorption spectra revealed that 5,14-dihydroquinoxalino[2,3-b]phenazine linked surface determined red luminescence behavior. This work provides new path controllable synthesis high-purity R-C-dots, showing potential applications in optoelectronic devices.

Язык: Английский

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Carbon dots-based nanocomposites for heterogeneous photocatalysis

Journal of Material Science and Technology, Год журнала: 2023, Номер 175, С. 244 - 257

Опубликована: Сен. 10, 2023

Язык: Английский

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Biomass-derived carbon dots as emerging visual platforms for fluorescent sensing

Environmental Research, Год журнала: 2024, Номер 251, С. 118610 - 118610

Опубликована: Март 3, 2024

Язык: Английский

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Carbon quantum dots: A systematic overview of recent developments in synthesis, properties, and novel therapeutic applications

Inorganic Chemistry Communications, Год журнала: 2024, Номер 165, С. 112492 - 112492

Опубликована: Май 9, 2024

Язык: Английский

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Carbon Dots: A Review with Focus on Sustainability

Advanced Science, Год журнала: 2024, Номер unknown

Опубликована: Июль 18, 2024

Abstract Carbon dots (CDs) are an emerging class of nanomaterials with attractive optical properties, which promise to enable a variety applications. An important and timely question is whether CDs can become functional sustainable alternative incumbent nanomaterials, notably inorganic quantum dots. Herein, the current CD literature comprehensively reviewed as regards their synthesis function, focus on sustainability aspects. The study quantifies why it that be synthesized biomass sole starting material free from toxic precious metals critical raw materials. It further describes analyzes employed pretreatment, chemical‐conversion, purification, processing procedures, highlights issues usage solvents, energy efficiency, safety waste management. specially shown many reported methods concerningly wasteful utilization non‐sustainable solvents energy. finally recommended future studies should explicitly consider discuss environmental influence selected material, generated byproducts, quantitative information required amounts consumables, provided evaluation presented in upscaled context.

Язык: Английский

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A review on the synthesis, properties, and applications of biomass derived carbon dots

Inorganic Chemistry Communications, Год журнала: 2023, Номер 156, С. 111223 - 111223

Опубликована: Авг. 15, 2023

Язык: Английский

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Turning food waste into value-added carbon dots for sustainable food packaging application: A review

Advances in Colloid and Interface Science, Год журнала: 2023, Номер 321, С. 103020 - 103020

Опубликована: Окт. 12, 2023

Carbon dots (CDs) are a recent addition to the nanocarbon family, encompassing both crystalline and amorphous phases. They have sparked significant research interest due their unique electrical optical properties, remarkable biocompatibility, outstanding mechanical characteristics, customizable surface chemistry, negligible cytotoxicity. Their current applications mainly limited flexible photonic biomedical devices, but they also garnered attention for potential use in intelligent packaging. The conversion of food waste into CDs further contributes concept circular economy. It provides comprehensive overview emerging green technologies, energy-saving reactions, cost-effective starting materials involved synthesis CDs. highlights properties biomass-derived CDs, focusing on structural performance, cellular toxicity, functional characteristics. application industry, including packaging, is summarized concise manner. This paper sheds light challenges prospects utilizing packaging industry. aims provide researchers with roadmap tailor suit specific particularly

Язык: Английский

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Exploring the Potential of Rare Earth Doped Carbon Dots: Concepts and Applications

Chemical Engineering Journal Advances, Год журнала: 2024, Номер 17, С. 100583 - 100583

Опубликована: Янв. 6, 2024

Carbon dots (CDs) are nanostructures containing mainly carbon atoms and abundant functional groups. With remarkable adjustable physicochemical properties, CDs have excellent hydrophilicity, photoluminescence (PL), biocompatibility, low toxicity. Although the numerous advantages make a research target for synthesizing advanced materials, some limitations pertinent must be corrected. Rare earth elements (RE) candidates doping CDs, obtaining hybrid materials called RE-CDs to optimize luminescence applicability, quantum yields. Hybrids allow combination of advantageous characteristics both RE, drastically improving their luminous magneto-optical imaging performance opening door practical technological applications. To date, no studies in literature provided in-depth analyses methods used prepare RE-CDs, characterization techniques used, challenges, critical analysis what could improved synthesis by proposing solutions. fill this gap, review initially presents detailed survey RE separately. Subsequently, addressed, as well obtainment, commonly characterizations, recent applications, from analyte detection functionality medical nanodevices. Finally, criticisms suggestions future work also discussed inspire new discoveries about potential derived RE-CDs.

Язык: Английский

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Unveiling the photoluminescence mechanisms of carbon dots through tunable near-infrared dual-wavelength lasing

Matter, Год журнала: 2024, Номер 7(10), С. 3518 - 3536

Опубликована: Июль 2, 2024

Язык: Английский

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Metal-organic framework (MOF)/C-dots and covalent organic framework (COF)/C-dots hybrid nanocomposites: Fabrications and applications in sensing, medical, environmental, and energy sectors

Advances in Colloid and Interface Science, Год журнала: 2024, Номер 328, С. 103178 - 103178

Опубликована: Май 8, 2024

Язык: Английский

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