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Related Concept Videos

Photoluminescence: Applications01:14

Photoluminescence: Applications

463
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
463

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Related Experiment Video

Updated: Aug 9, 2025

Synthesis of Cd-free InP/ZnS Quantum Dots Suitable for Biomedical Applications
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Current trends in carbon-based quantum dots development from solid wastes and their applications.

Chanchal Das1, Mika Sillanpää2, Shabi Abbas Zaidi3

  • 1Department of Chemistry, Cooch Behar Panchanan Barma University, West Bengal, Cooch Behar, 736101, India.

Environmental Science and Pollution Research International
|February 22, 2023
PubMed
Summary
This summary is machine-generated.

Solid wastes (SWs) can be transformed into valuable carbon-based quantum dots (Cb-QDs) for diverse applications. This review explores sustainable synthesis of carbon quantum dots (CQDs), graphene quantum dots (GQDs), and graphene oxide quantum dots (GOQDs) from SWs.

Keywords:
Carbon quantum dotsCarbon-based quantum dotsGraphene oxide quantum dotsGraphene quantum dotsSolid wastes

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Area of Science:

  • Materials Science
  • Environmental Science
  • Nanotechnology

Background:

  • Increasing urbanization and population growth drive significant solid waste (SW) generation, projected to reach 3.40 billion tons by 2050.
  • SWs pose environmental challenges in urban areas globally, necessitating innovative waste management strategies.
  • The reusability of SWs is gaining importance for sustainable development and pollution reduction.

Purpose of the Study:

  • To review sustainable synthesis routes for carbon quantum dots (CQDs), graphene quantum dots (GQDs), and graphene oxide quantum dots (GOQDs) derived from solid wastes.
  • To explore the diverse applications of these carbon-based quantum dots (Cb-QDs) in various fields.
  • To highlight challenges and future research directions in SW-derived quantum dot synthesis and application.

Main Methods:

  • Literature review focusing on the conversion of solid wastes into carbon-based quantum dots.
  • Analysis of sustainable synthesis methodologies for CQDs, GQDs, and GOQDs.
  • Compilation and discussion of reported applications of these nanomaterials.

Main Results:

  • Solid wastes can be effectively converted into carbon-based quantum dots (Cb-QDs) through straightforward methods.
  • Cb-QDs exhibit promising applications in energy storage, chemical sensing, and drug delivery.
  • Sustainable synthesis routes from various SWs are feasible for producing CQDs, GQDs, and GOQDs.

Conclusions:

  • The conversion of solid wastes into Cb-QDs offers a sustainable approach to waste management and resource recovery.
  • Further research into optimizing synthesis methods and exploring novel applications is warranted.
  • Addressing challenges in current synthesis techniques will facilitate the broader implementation of SW-derived quantum dots.