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

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. (C) 2011 Elsevier B.V. All rights reserved.


Published in:
Applied Surface Science, 258, 2373-2377
Year:
2012
Publisher:
Elsevier
ISSN:
0169-4332
Keywords:
Laboratories:




 Record created 2012-02-23, last modified 2018-01-28

External link:
Download fulltext
n/a
Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)