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Title: | Synthesis of Annona glabra Mediated Silver Nanoparticles, their Photocatalysis and Toxicity on Daphnia magna |
Authors: | Wickramarachchi, S.R. Paragodaarachchi, Y.L. De silva, C.R. Perera, A.D.L.C. Amarasinghe5, I.D. |
Keywords: | Green synthesis, Silver nanoparticles, Annona glabra, Daphnia magna, Photocatalysis. |
Issue Date: | 2023 |
Publisher: | Asian Journal of Chemistry |
Citation: | Wickramarachchi S.R.; Paragodaarachchi Y.L.; De silva C.R.; Perera A.D.L.C.; Amarasinghe5, I.D. (2023), Synthesis of Annona glabra Mediated Silver Nanoparticles, their Photocatalysis and Toxicity on Daphnia magna, Asian Journal of Chemistry; Vol. 35, No. 7 (2023), 1741-1748; https://doi.org/10.14233/ajchem.2023.27872 |
Abstract: | This work reports the synthesis of silver nanoparticles (AgNPs) using the leaf extract of Annona glabra as a green synthetic route and assessment of its photocatalytic property using methelyne blue as a model dye and toxic effect against an aquatic model, Daphnia magna. Leaf extract prepared at 100 oC, 1% plant extract, 1 mM of AgNO3, 3 h incubation time were optimized for the synthesis of AgNPs. Surface plasmon resonance peak of AgNPs laid around 419 nm. Spherical nanoparticles were in the size ranges 50-80 and 110-195 nm. Biomolecules were present as capping agents on AgNPs. AgNPs have cubic face centered lattice structure and the average particle size as calculated using Debye-Scherrer formula is 55 nm. Green synthesized AgNPs reduced the absorbance of methelyne blue dye by 89% in 3 h showing prominent photocatalytic activity. The EC50 of AgNPs was found to be 1.78 ± 0.20 mg/L against Daphnia magna showing a lower toxicity than silver ions. |
URI: | http://repository.kln.ac.lk/handle/123456789/26763 |
Appears in Collections: | Chemistry |
Files in This Item:
File | Description | Size | Format | |
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synthe of A. glabra mediated AgNPs, photocatalysis & Toxicity on D. Magana.pdf | 955.58 kB | Adobe PDF | View/Open |
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