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Luminescent Composite Carbon/SiO₂ Structures: Synthesis and Applications.

Yuliya A Podkolodnaya¹, Alina A Kokorina¹, Tatiana S Ponomaryova¹

¹Department of Inorganic Chemistry, Chemical Institute, Saratov State University, Astrakhanskaya Street 83, 410012 Saratov, Russia.

|June 23, 2022

Summary

Silica matrices enhance luminescent carbon nanostructures (CNSs) by improving optical properties and reducing quenching. This review details methods for creating these composites for advanced applications.

Keywords:

carbon nanostructures luminescence luminescent carbon-based nanomaterials luminescent composite particles silica nanoparticles

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Area of Science:

Materials Science
Nanotechnology
Chemistry

Background:

Luminescent carbon nanostructures (CNSs) offer unique properties but face challenges in separation and stability.
Environmental factors and aggregation state significantly impact CNS properties.

Purpose of the Study:

To review methods for incorporating CNSs into silica matrices.
To explore the synthesis of multifunctional silica-CNS composites.
To discuss the advantages and challenges of these advanced nanomaterials.

Main Methods:

Inclusion of CNSs within silica particles.
Grafting CNSs onto silica surfaces.
Combining CNSs with other nanoparticles (iron oxide, TiO2, QDs, AuNCs) for multifunctional properties.

Main Results:

Silica matrices improve optical properties and reduce photoluminescence quenching in CNSs.
Composite particles offer enhanced stability and easier handling compared to bare CNSs.
Multifunctional particles exhibit combined optical, magnetic, and photosensitizing capabilities.

Conclusions:

Silica matrices are effective for stabilizing and enhancing luminescent carbon nanostructures.
The development of multifunctional silica-CNS composites opens new avenues for diverse applications.
This review provides a comprehensive guide for researchers working with CNS-silica composites.