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Title: Compositions and methods for direct capture of organic materials from process streams

A particulate magnetic nanostructured solid sorbent (MNSS) material is described herein. The particles of the MNSS comprise a plurality of tethered nanoparticles. The nanoparticles are tethered together by substantially linear hydrocarbon chains, a poly(alkylene oxide) chains, or a combination thereof connecting the nanoparticles in a three-dimensional elastic network with the nanoparticles as junctions of the network having junction functionality of about 2.1 to about 6. The surfaces of at least some of the nanoparticles comprise a polymerized siloxane bearing at least one sorption-aiding substituent selected from a hydrophilic group and a lipophilic group. The plurality of nanoparticles is made up of superparamagnetic nanoparticles or a combination of superparamagnetic and non-magnetic nanoparticles. The individual superparamagnetic nanoparticles comprise a passivating metal oxide coating around a core comprising at least one nanocrystalline metal or alloy having ferromagnetic or ferrimagnetic properties.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1289942
Assignee:
UCHICAGO ARGONNE, LLC (Chicago, IL) ANL
Patent Number(s):
9,409,148
Application Number:
13/962,480
Contract Number:
AC02-06CH11357
Resource Relation:
Patent File Date: 2013 Aug 08
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Works referenced in this record:

Surface chemistry of Al2O3 deposition using Al(CH3)3 and H2O in a binary reaction sequence
journal, January 1995

Synthesis of size-controlled Fe–Co alloy nanoparticles by modified polyol process
journal, March 2007
  • Kodama, D.; Shinoda, K.; Sato, K.
  • Journal of Magnetism and Magnetic Materials, Vol. 310, Issue 2, p. 2396-2398
  • DOI: 10.1016/j.jmmm.2006.10.768