Novel polyamide bilayer membranes with improved desalination performance

Young Hye Na; Jacquana Diep; Radwan Al-Rasheed; Blake Davis; Geoff Geise; Ankit Vora; Majed Nassar; Melanie McNeil; Benny Freeman; Geraud Dubois

Novel polyamide bilayer membranes with improved desalination performance

Young Hye Na, Jacquana Diep, Radwan Al-Rasheed, Blake Davis, Geoff Geise, Ankit Vora, Majed Nassar, Melanie McNeil, Benny Freeman, Geraud Dubois

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

1 Citation (Scopus)

Abstract

A polyamide bi-layer membrane consisting of conventional non-substituted aromatic polyamide under-layer (REFPA) and HFA-substituted aromatic polyamide top-layer (HFAPA) was prepared by sequential interfacial polymerization of MPD (1 ^st aqueous sol), TMP (organic sol), and HFA-MDA (2 ^nd aqeuous sol). The polyamide bilayer membrane showed significant improvement in salt rejection (ca. 50 % reduction in salt passage) with very minor loss in water flux (ca. 8 % reduction) compared to underlying REFPA, resulting in excellent combination of salt rejection and water flux. Efficient removal of toxic substances such as arsenic and boron was also demonstrated.

Original language	English
Title of host publication	Technical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012
Pages	687-690
Number of pages	4
Publication status	Published - 2012
Externally published	Yes
Event	Nanotechnology Conference and Trade Show (Nanotech) 2012 - Santa Clara, United States of America Duration: 18 Jun 2012 → 21 Jun 2012

Conference

Conference	Nanotechnology Conference and Trade Show (Nanotech) 2012
Abbreviated title	Nanotech 2012
Country/Territory	United States of America
City	Santa Clara
Period	18/06/12 → 21/06/12
Other	Nanotechnology 2012: Advanced Materials, CNTs, Particles, Films and Composites - 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012

Keywords

Desalination
Polyamide bilayer
Reverse osmosis
Sequential interfacial polymerization

Cite this

@inproceedings{ae7a31d36777460c897fec930d8306a5,

title = "Novel polyamide bilayer membranes with improved desalination performance",

abstract = "A polyamide bi-layer membrane consisting of conventional non-substituted aromatic polyamide under-layer (REFPA) and HFA-substituted aromatic polyamide top-layer (HFAPA) was prepared by sequential interfacial polymerization of MPD (1 st aqueous sol), TMP (organic sol), and HFA-MDA (2 nd aqeuous sol). The polyamide bilayer membrane showed significant improvement in salt rejection (ca. 50 % reduction in salt passage) with very minor loss in water flux (ca. 8 % reduction) compared to underlying REFPA, resulting in excellent combination of salt rejection and water flux. Efficient removal of toxic substances such as arsenic and boron was also demonstrated.",

keywords = "Desalination, Polyamide bilayer, Reverse osmosis, Sequential interfacial polymerization",

author = "Na, {Young Hye} and Jacquana Diep and Radwan Al-Rasheed and Blake Davis and Geoff Geise and Ankit Vora and Majed Nassar and Melanie McNeil and Benny Freeman and Geraud Dubois",

year = "2012",

language = "English",

isbn = "9781466562769",

pages = "687--690",

booktitle = "Technical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012",

}

Na, YH, Diep, J, Al-Rasheed, R, Davis, B, Geise, G, Vora, A, Nassar, M, McNeil, M, Freeman, B & Dubois, G 2012, Novel polyamide bilayer membranes with improved desalination performance. in Technical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012. pp. 687-690, Nanotechnology Conference and Trade Show (Nanotech) 2012, Santa Clara, California, United States of America, 18/06/12.

TY - GEN

T1 - Novel polyamide bilayer membranes with improved desalination performance

AU - Na, Young Hye

AU - Diep, Jacquana

AU - Al-Rasheed, Radwan

AU - Davis, Blake

AU - Geise, Geoff

AU - Vora, Ankit

AU - Nassar, Majed

AU - McNeil, Melanie

AU - Freeman, Benny

AU - Dubois, Geraud

PY - 2012

Y1 - 2012

N2 - A polyamide bi-layer membrane consisting of conventional non-substituted aromatic polyamide under-layer (REFPA) and HFA-substituted aromatic polyamide top-layer (HFAPA) was prepared by sequential interfacial polymerization of MPD (1 st aqueous sol), TMP (organic sol), and HFA-MDA (2 nd aqeuous sol). The polyamide bilayer membrane showed significant improvement in salt rejection (ca. 50 % reduction in salt passage) with very minor loss in water flux (ca. 8 % reduction) compared to underlying REFPA, resulting in excellent combination of salt rejection and water flux. Efficient removal of toxic substances such as arsenic and boron was also demonstrated.

AB - A polyamide bi-layer membrane consisting of conventional non-substituted aromatic polyamide under-layer (REFPA) and HFA-substituted aromatic polyamide top-layer (HFAPA) was prepared by sequential interfacial polymerization of MPD (1 st aqueous sol), TMP (organic sol), and HFA-MDA (2 nd aqeuous sol). The polyamide bilayer membrane showed significant improvement in salt rejection (ca. 50 % reduction in salt passage) with very minor loss in water flux (ca. 8 % reduction) compared to underlying REFPA, resulting in excellent combination of salt rejection and water flux. Efficient removal of toxic substances such as arsenic and boron was also demonstrated.

KW - Desalination

KW - Polyamide bilayer

KW - Reverse osmosis

KW - Sequential interfacial polymerization

UR - http://www.scopus.com/inward/record.url?scp=84865000620&partnerID=8YFLogxK

M3 - Conference Paper

AN - SCOPUS:84865000620

SN - 9781466562769

SP - 687

EP - 690

BT - Technical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012

T2 - Nanotechnology Conference and Trade Show (Nanotech) 2012

Y2 - 18 June 2012 through 21 June 2012

ER -

Novel polyamide bilayer membranes with improved desalination performance

Abstract

Conference

Keywords

Other files and links

Cite this