Journal
COLLOIDS AND SURFACES B-BIOINTERFACES
Volume 113, Issue -, Pages 169-175Publisher
ELSEVIER
DOI: 10.1016/j.colsurfb.2013.08.033
Keywords
Silver nanoparticles; Biosynthesis; Bioreduction; Functionalization; Photocatalyst; Zinc Oxide
Funding
- Natural Sciences and Engineering Research Council (NSERC), Canada
- NSERC NCE [AUTO21]
- Ontario Ministry of Agriculture, Food, and Rural Affairs (OMAFRA) New Directions and Alternative Renewable Fuels research programme
Ask authors/readers for more resources
The functionalization of ZnO powders with silver nanoparticles (AgNPs) through a novel maple leaf extract mediated biological process was demonstrated. Maple leaf extract was found to be a very effective bioreduction agent for the reduction of silver ions. The reduction rate of Ag+ into Ag-0 was found to be much faster than other previously reported bioreduction rates and was comparable to the reduction rates obtained through chemical means. The functionalization of ZnO particles with silver nanoparticles through maple leaf extract mediated bioreduction of silver was investigated through UV-visible spectrophotometry, transmission electron microscopy (TEM), and X-ray diffraction analysis. It was found that the ZnO particles were coated with silver nanoparticles 5-20 nm in diameter. The photocatalytic ability of the ZnO particles functionalized with silver nanoparticles was found to be significantly improved compared to the photocatalytic ability of the neat ZnO particles. The silver functionalized ZnO particles reached 90% degradation of the dye an hour before the neat ZnO particles. (C) 2013 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available