Synthesis and characterization of silver/clay/chitosan bionanocomposites by UV-Irradiation method

Ahmad, Mansor and Shameli, Kamyar and Darroudi, Majid and Wan Yunus, Wan Md. Zin and Ibrahim, Nor Azowa (2009) Synthesis and characterization of silver/clay/chitosan bionanocomposites by UV-Irradiation method. American Journal of Applied Sciences, 6 (12). pp. 2030-2035. ISSN 1546-9239

Full text not available from this repository.

Abstract

Problem statement: Silver/Montmorillonite/Chitosan Bionanocomposites (Ag/MMT/Cts BNCs) have been synthesized by UV-irradiation reduction method in the absence of any reducing agent or heat treatment which is used to antibacterial application and medical devices. Approach: MMT, Chitosan and AgNO3 were used as a solid support, stabilizer and silver precursor, respectively. The properties of Ag/MMT/Cts BNCs were studied as a function of UV-irradiation times. The crystalline structure, d-spacing of interlayer of MMT, the size distributions and surface plasmon resonance of synthesized silver nanoparticles (Ag-NPs) were characterized using Powder X-Ray Diffraction (PXRD), Transmission Electron Microscopy (TEM) and UV-vis spectroscopy. The functional groups of prepared BNCs were also determined by Fourier Transform Infrared (FT-IR). Results: The results obtained from UV-vis spectroscopy of synthesized Ag-NPs showed that the intensity of the maximum wavelength of the plasmon peaks were increased with the increasing in the UV-irradiation times. Results from UV-visible spectroscopy and Transmission Electron Microscopy (TEM) microphotographs show that particles size of Ag-NPs decrease with the increase of UV-irradiation time. Conclusion: UV-irradiation disintegrated the Ag-NPs into smaller size until a relatively stable size and size distribution were achieved. Ag/MMT/Cts BNCs could be suitable to antimicrobial applications and medical devices.

Item Type:Article
Keyword:Silver Nanoparticles; Bionanocomposites; UV-irradiation; Powder X-ray diffraction
Subject:Nanocomposites (Materials) - Analysis
Subject:Nanocomposites (Materials) - Properties
Subject:Nanoparticles - Properties
Faculty or Institute:Faculty of Science
Publisher:Science Publications
DOI Number:10.3844/ajassp.2009.2030.2035
Altmetrics:http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3844/ajassp.2009.2030.2035
ID Code:16934
Deposited By: Najwani Amir Sariffudin
Deposited On:27 Aug 2012 09:42
Last Modified:27 Aug 2012 09:42

Repository Staff Only: item control page

Document Download Statistics

This item has been downloaded for since 27 Aug 2012 09:42.

View statistics for "Synthesis and characterization of silver/clay/chitosan bionanocomposites by UV-Irradiation method"


Universiti Putra Malaysia Institutional Repository

Universiti Putra Malaysia Institutional Repository is an on-line digital archive that serves as a central collection and storage of scientific information and research at the Universiti Putra Malaysia.

Currently, the collections deposited in the IR consists of Master and PhD theses, Master and PhD Project Report, Journal Articles, Journal Bulletins, Conference Papers, UPM News, Newspaper Cuttings, Patents and Inaugural Lectures.

As the policy of the university does not permit users to view thesis in full text, access is only given to the first 24 pages only.