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Photo-induced growth of silver nanoparticles using UV sensitivity of cellulose fibers

Omrani, A. A ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.1016/j.apsusc.2011.10.038
  3. Publisher: 2012
  4. Abstract:
  5. A simple method has been demonstrated to grow silver nanoparticles on the surface of cellulose fibers. The preparation is based on photo-activation of surface by ultraviolet (UV) photons, followed by chemical reduction of silver nitrate. It is found that the concentration of silver nitrate in the solution is not a determining factor, while UV intensity affects the rate of initial growth and determines the final concentration of the loaded silver. We explain the phenomena based on a model including the number of reducing sites on the surface of cellulose fibers activated by UV photons, and a release mechanism that causes a slow rate of dissolution of silver back into the solution
  6. Keywords:
  7. Cellulose fiber ; Chemical reduction ; Photo-induced ; Release mechanism ; Silver nanoparticles ; Silver nitrates ; SIMPLE method ; Ultra-violet ; UV intensity ; UV irradiation ; UV photons ; UV sensitivity ; Cellulose ; Nanoparticles ; Photons ; Silver alloys ; Textile fibers ; Silver
  8. Source: Applied Surface Science ; Volume 258, Issue 7 , 2012 , Pages 2373-2377 ; 01694332 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0169433211015959