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Title: Membranes having aligned 1-D nanoparticles in a matrix layer for improved fluid separation

Abstract

Membranes for fluid separation are disclosed. These membranes have a matrix layer sandwiched between an active layer and a porous support layer. The matrix layer includes 1-D nanoparticles that are vertically aligned in a porous polymer matrix, and which substantially extend through the matrix layer. The active layer provides species-specific transport, while the support layer provides mechanical support. A matrix layer of this type has favorable surface morphology for forming the active layer. Furthermore, the pores that form in the matrix layer tend to be smaller and more evenly distributed as a result of the presence of aligned 1-D nanoparticles. Improved performance of separation membranes of this type is attributed to these effects.

Inventors:
; ; ; ; ; ;
Issue Date:
Research Org.:
Porifera, Inc., Hayward, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1233379
Patent Number(s):
9216391
Application Number:
13/428,843
Assignee:
Porifera, Inc.
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
DOE Contract Number:  
AR0000025
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Mar 23
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Revanur, Ravindra, Lulevich, Valentin, Roh, Il Juhn, Klare, Jennifer E., Kim, Sangil, Noy, Aleksandr, and Bakajin, Olgica. Membranes having aligned 1-D nanoparticles in a matrix layer for improved fluid separation. United States: N. p., 2015. Web.
Revanur, Ravindra, Lulevich, Valentin, Roh, Il Juhn, Klare, Jennifer E., Kim, Sangil, Noy, Aleksandr, & Bakajin, Olgica. Membranes having aligned 1-D nanoparticles in a matrix layer for improved fluid separation. United States.
Revanur, Ravindra, Lulevich, Valentin, Roh, Il Juhn, Klare, Jennifer E., Kim, Sangil, Noy, Aleksandr, and Bakajin, Olgica. Tue . "Membranes having aligned 1-D nanoparticles in a matrix layer for improved fluid separation". United States. https://www.osti.gov/servlets/purl/1233379.
@article{osti_1233379,
title = {Membranes having aligned 1-D nanoparticles in a matrix layer for improved fluid separation},
author = {Revanur, Ravindra and Lulevich, Valentin and Roh, Il Juhn and Klare, Jennifer E. and Kim, Sangil and Noy, Aleksandr and Bakajin, Olgica},
abstractNote = {Membranes for fluid separation are disclosed. These membranes have a matrix layer sandwiched between an active layer and a porous support layer. The matrix layer includes 1-D nanoparticles that are vertically aligned in a porous polymer matrix, and which substantially extend through the matrix layer. The active layer provides species-specific transport, while the support layer provides mechanical support. A matrix layer of this type has favorable surface morphology for forming the active layer. Furthermore, the pores that form in the matrix layer tend to be smaller and more evenly distributed as a result of the presence of aligned 1-D nanoparticles. Improved performance of separation membranes of this type is attributed to these effects.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {12}
}

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Works referenced in this record:

Single-walled carbon nanotube electronics
journal, March 2002


Antifouling Polymer Membranes with Subnanometer Size Selectivity
journal, October 2004


Forward osmosis: Principles, applications, and recent developments
journal, September 2006


Electronic properties of multiwalled carbon nanotubes in an embedded vertical array
journal, July 2002


Drug delivery system based on chronobiology—A review
journal, November 2010


Influence of membrane support layer hydrophobicity on water flux in osmotically driven membrane processes
journal, June 2008


Osmotic drug delivery: a review of the patent literature
journal, July 1995


Controlled porosity‐osmotic pump pellets of a poorly water‐soluble drug using sulfobutylether‐β‐cyclodextrin, (SBE)7M‐β‐CD, as a solubilizing and osmotic agent
journal, September 2007


High Performance Thin-Film Composite Forward Osmosis Membrane
journal, May 2010


Modification of porous poly(vinylidene fluoride) membrane using amphiphilic polymers with different structures in phase inversion process
journal, March 2008