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Title: Smart membranes for nitrate removal, water purification, and selective ion transportation

Abstract

A computer designed nanoengineered membrane for separation of dissolved species. One embodiment provides an apparatus for treatment of a fluid that includes ions comprising a microengineered porous membrane, a system for producing an electrical charge across the membrane, and a series of nanopores extending through the membrane. The nanopores have a pore size such that when the fluid contacts the membrane, the nanopores will be in a condition of double layer overlap and allow passage only of ions opposite to the electrical charge across the membrane.

Inventors:
 [1];  [1];  [2];  [2]
  1. Pleasanton, CA
  2. Livermore, CA
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
970605
Patent Number(s):
7632406
Application Number:
11/110,598
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B - PERFORMING OPERATIONS B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS B03C - MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Wilson, William D, Schaldach, Charlene M, Bourcier, William L, and Paul, Phillip H. Smart membranes for nitrate removal, water purification, and selective ion transportation. United States: N. p., 2009. Web.
Wilson, William D, Schaldach, Charlene M, Bourcier, William L, & Paul, Phillip H. Smart membranes for nitrate removal, water purification, and selective ion transportation. United States.
Wilson, William D, Schaldach, Charlene M, Bourcier, William L, and Paul, Phillip H. Tue . "Smart membranes for nitrate removal, water purification, and selective ion transportation". United States. https://www.osti.gov/servlets/purl/970605.
@article{osti_970605,
title = {Smart membranes for nitrate removal, water purification, and selective ion transportation},
author = {Wilson, William D and Schaldach, Charlene M and Bourcier, William L and Paul, Phillip H},
abstractNote = {A computer designed nanoengineered membrane for separation of dissolved species. One embodiment provides an apparatus for treatment of a fluid that includes ions comprising a microengineered porous membrane, a system for producing an electrical charge across the membrane, and a series of nanopores extending through the membrane. The nanopores have a pore size such that when the fluid contacts the membrane, the nanopores will be in a condition of double layer overlap and allow passage only of ions opposite to the electrical charge across the membrane.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {12}
}

Works referenced in this record:

Controlling the Transport Properties of Gold Nanotubule Membranes Using Chemisorbed Thiols
journal, October 2001


Peer Reviewed: Nanomaterials in Analytical Chemistry
journal, May 1998


Metal Nanotubule Membranes with Electrochemically Switchable Ion-Transport Selectivity
journal, May 1995


Dielectrophoretic Forces on the Nanoscale
journal, October 2004

  • Schaldach, C. M.; Bourcier, William L.; Paul, Phillip H.
  • Langmuir, Vol. 20, Issue 24, p. 10744-10750
  • URL: 10.1021/la040059+