Journal of Nanomedicine & Nanotechnology

Comparison of different iron nanoparticles in their potential to combat contaminants in water

13^th International Conference on Nanotek & Expo

December 05-07, 2016 Phoenix, USA

Helga Sato, Soroosh Dehkordi, Jaeyun Moon, Erick R. Bandala

University of Nevada, USA
Desert Research Institute, USA

Posters & Accepted Abstracts: J Nanomed Nanotechnol

Abstract:

Nanoscale Zero-Valent Iron (nZVI) particles are known to be a great driver in combatting organic contaminants found in water. Following a Fenton-like reaction model, the iron nanoparticles are able to oxidize the contaminants into harmless by-products such as carbon dioxide and water. The conventional method to synthesize these nZVI particles presents an issue with toxic byproducts such as sodium borohydride, therefore another proposed method for producing various metallic nanoparticles provides the use of plant extracts as the reducing agent to reduce Fe2+ or Fe3+ into the desire zero-valent iron, or Feo. Larrea tridentata (also known as creosote bush) is commonly found in our desert region, and will be used as the plant material extract utilized in the plant based production of nZVI particles. There is an optimal polyphenol content in the plant for the reaction with the iron salt solution to occur and produce the desired hydroxyl radicals. To test the potential use of nZVI produced from plant mediated procedures, commercial nZVI was tested against conventionally synthesized nZVI and plant extract synthesized nZVI in their ability to produce OH radicals; the main transient species for oxidizing pollutants. The characteristics of the three types of nZVI will be assessed, as well as the yields in hydroxyl radicals when reacted with hydrogen peroxide and UV radiation. The results showed that the nZVI form produced via the conventional method showed the greatest potential in production of hydroxyl radicals, and the plant synthesized nZVI was comparable in effectiveness when using a greater volume. Plant materials can be more involved in the production of these nanoparticles in hopes that the process can be improved thus leading to less harmful chemical waste.

Biography :

Email: satoh1@unlv.nevada.edu