Magnetite Nanoparticles for Enhanced Environmental Remediation

Period of Performance: 01/01/2006 - 12/31/2006

$344K

Phase 2 SBIR

Recipient Firm

Luna Innovations, Inc.
301 1st St Suite 200
Roanoke, VA 24011
Principal Investigator
Firm POC

Abstract

Luna Innovations Incorporated is developing low-cost commercial-scale magnetite (Fe3O4) nanoparticles for the enhanced remediation of contaminated groundwater, The use of nanoparticles for environmental remediation has attracted much attention since the late 90¿s, yet practical application of this nano-scale technology has net several key challenges including particle-particle aggregation and subsequent loss of reactivity, difficulty in application, and prohibitively high cost. In Phase I of this SBIR program, Luna Innovations developed magnetite nanoparticles and stabilizing particle surface coatings and suspension chemistries that offer advantages over conventional zero-valent iron (ZVI) and bimetallic nanoparticles approaches including low-cost, long-term particle stability, and reduced aggregation. Phase I studies demonstrated that the nano-scale Fe3O4 particles had higher reductive dechlorination capacity than that of an equal mass of larger micron-sized particles and were also effective in adsorptive removal of ArsenicIII from solution. Luna is partnering with an existing manufacturer of magnetite for near-term penetration of the $8-10 Billion USD a year global environmental remediation market. End users in this regulation-driven and growing field are continuously seeking advanced tools to cost-efficiently expedite remediation of recalcitrant environmental contaminants and Luna¿s technology addresses their needs.