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Title: | Synthesis of Chitosan Stabilized Silver Nanoparticles using Gamma Ray Irradiation and Characterization |
Authors: | Hettiarachchi, M.A. Wickramarachchi, P.A.S.R. |
Keywords: | Silver nanoparticles Chitosan Gamma ray irradiation |
Issue Date: | 2011 |
Publisher: | University of Kelaniya |
Citation: | Hettiarachchi, M.A. and Wickramarachchi, P.A.S.R. (2011). Synthesis of Chitosan Stabilized Silver Nanoparticles using Gamma Ray Irradiation and Characterization, Journal of Science, University of Kelaniya, 6: 65-75. |
Abstract: | Chitosan stabilized silver nanoparticles (AgNPs) were synthesized using gamma ray irradiation. Four different sample solutions were prepared [1 mM AgNO3 in 0.1% (w/v) chitosan, 1 mM AgNO3 in 0.5% (w/v) chitosan, 2 mM AgNO3 in 0.1% (w/v) chitosan 2 mM AgNO3 in 0.5% (w/v) chitosan] with controls maintaining dose of radiation at 20±2 kGy. The formation of AgNPs were determined by the appearance of the characteristic colour of the AgNPs, using the surface plasmon resonance band (SPR) at 400-432 nm range and the N-H band of the FT-IR spectrum. Stability of the maximum absorption wave lengths of the samples was monitored for three months by UV-visible spectroscopy. The particle size distribution of the stabilized sample, showed a wide distribution of 28-1106 nm. The sample, 2 mM AgNO3 in 0.5% (w/v) chitosan was stable for three months. FT-IR spectroscopic analysis revealed a shifting of N-H stretching vibration band from 3367-3228 cm-1 with the introduction of nanoparticles. |
URI: | http://repository.kln.ac.lk/handle/123456789/5444 |
ISSN: | Chemistry |
Other Identifiers: | Chemistry |
Appears in Collections: | Volume 06 - 2011 |
Files in This Item:
File | Description | Size | Format | |
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4222-15106-1-PB.pdf | 211.74 kB | Adobe PDF | View/Open |
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