Molecular energy transfer: utilizing biogenically-synthesized ZnMn 2 O 4 nanoparticles from Arachis hypogaea seeds for photoluminescence, adsorption, and photocatalytic applications

W4414160624 · 수집 2026-10-04 18:16:39

T11342 Carbon and Quantum Dots Applications

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The green synthesis of nanoparticles (NPs) has emerged as a sustainable alternative to conventional chemical approaches, primarily due to the use of phytochemicals as reducing and stabilizing agents. In the present study, bimetallic ZnMn2O4 nanoparticles were synthesized via a green combustion method employing Arachis hypogaea (peanut) seed powder as a natural fuel source. The synthesized ZnMn2O4 NPs were systematically characterized using XRD, FTIR, SEM, BET, UV-Vis, and PL spectroscopy to elucidate their structural, morphological, and optical properties. Distinct bluish-green fluorescence was observed under short-wave UV irradiation (254 nm), enabling their application in latent fingerprint visualization. The multifunctional performance of the ZnMn2O4 NPs was further demonstrated in environmental applications. The materials exhibited enhanced adsorption (63% ± 0.2%) and photocatalytic degradation (79% ± 0.3%) efficiencies against Methylene Blue (MB) dye under UV irradiation, with results statistically significant (p < 0.05). In addition, the NPs effectively reduced toxic Cr(vi) ions in aqueous media, highlighting their potential as efficient detoxification agents. Overall, this work demonstrates a novel, green synthesis route for ZnMn2O4 nanoparticles that uniquely integrates environmental remediation and forensic applications. The dual functionality addressing both pollutant degradation/detoxification and forensic fingerprint visualization positions this study as a rare and innovative contribution to the field of nanotechnology.

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Molecular energy transfer: utilizing biogenically-synthesized ZnMn <sub>2</sub> O <sub>4</sub> nanoparticles from <i>Arachis hypogaea</i> seeds for photoluminescence, adsorption, and photocatalytic applications

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