TY  - JOUR
AU  - Ahmad, Mansor Bin 
AU  - Shameli, Kamyar 
AU  - Darroudi, Majid 
AU  - Yunus, Wan Md Zin Wan 
AU  - Ibrahim, Nor Azowa 
PY  - 2009
TI  - Synthesis and Characterization of Silver/Clay/Chitosan Bionanocomposites by UV-Irradiation Method
JF  - American Journal of Applied Sciences
VL  - 6
IS  - 12
DO  - 10.3844/ajassp.2009.2030.2035
UR  - https://thescipub.com/abstract/ajassp.2009.2030.2035
AB  - 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.