Eco-Friendly Synthesis of Cerium Oxide Nanoparticles from <i>Lycium cooperi</i>

Eco-Friendly Synthesis of Cerium Oxide Nanoparticles from <i>Lycium cooperi</i>

Cerium oxide nanoparticles (CeO<sub>2</sub>-NPs) offer promising advantages in semiconductors and biomedical applications due to their optical, electrical, antioxidant, and antibacterial properties. However, the widely reported synthetic strategies for CeO<sub>2</sub>-NPs dem...

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Bibliographic Details
Main Authors: Jhonathan Castillo-Saenz, Jorge Salomón-Carlos, Ernesto Beltrán-Partida, Benjamín Valdez-Salas
Format: Article
Language:English
Published: MDPI AG 2025-02-01
Series:Reactions
Subjects:
green nanoparticles
cerium oxide
sustainable chemistry
semiconductors
Online Access:https://www.mdpi.com/2624-781X/6/1/14
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Summary:Cerium oxide nanoparticles (CeO<sub>2</sub>-NPs) offer promising advantages in semiconductors and biomedical applications due to their optical, electrical, antioxidant, and antibacterial properties. However, the widely reported synthetic strategies for CeO<sub>2</sub>-NPs demand toxic precursors and intermediary pollutants, representing a major limitation to CeO<sub>2</sub>-NPs applications. Therefore, it is necessary to develop greener strategies that implicate ecological precursors to reduce the negative impact on the scalability of CeO<sub>2</sub>-NPs. In this regard, we applied <i>Lycium cooperi</i> (<i>L. cooperi</i>) aqueous extracts as an unexplored potential green reducing agent for the eco-friendly synthesis of CeO<sub>2</sub>-NPs. The <i>L. cooperi</i> extract showed the presence of alkaloids, flavonoids, cardiac glycosides, and carbohydrate-derived families, which were assessed for spherical monodispersed CeO<sub>2</sub>-NPs under a rapid chemical reduction. Moreover, the elemental composition revealed Ce and O, indicating highly pure CeO<sub>2</sub>-NPs characterized by an interplanar cubic crystalline structure. Furthermore, we detected the presence of stabilizing functional groups from <i>L. cooperi</i>, which, after a controlled annealing process, resulted in a band gap energy of 3.9 eV, which was optimal for the CeO<sub>2</sub>-NPs. Thus, the results indicate that <i>L. cooperi</i> is an environmentally friendly synthesis method that can open a new route for CeO<sub>2</sub>-NPs in biomedical and industrial applications.
ISSN:2624-781X

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