Underwater superoleophobic cellulose/electrospun PVDF-HFP membranes for efficient oil/water separation

Farah Ejaz Ahmed; Boor Singh Lalia; Nidal Hilal; Raed Hashaikeh

doi:10.1016/j.desal.2014.03.010

Underwater superoleophobic cellulose/electrospun PVDF-HFP membranes for efficient oil/water separation

Farah Ejaz Ahmed, Boor Singh Lalia, Nidal Hilal, Raed Hashaikeh

Research output: Contribution to journal › Article › peer-review

Abstract

Electrospun polyvinylidene fluoride-co-hexafluoropropylene (PVDF-HFP) nanofibers have been modified with cellulose regenerated from ionic liquid solution. Three-dimensional impregnation of cellulose provides greater control over porosity, pore size, wettability as well as the mechanical and thermal properties of the electrospun membrane. Formation of smaller pores with narrower pore size distribution is achieved as the fibers are coated with cellulose matrix. At 15. wt.% cellulose, the mechanical properties of electrospun PVDF-HFP are enhanced as the elastic modulus increases from 17. MPa to 54. MPa and the tensile strength also improves from 5.5. MPa to 8.6. MPa. The resulting membrane exhibits superhydrophilicity and underwater supoeroleophobicity and is successfully applied for selective separation of water from oil with efficiencies up to 99.98%.

Original language	English (US)
Pages (from-to)	48-54
Number of pages	7
Journal	Desalination
Volume	344
DOIs	https://doi.org/10.1016/j.desal.2014.03.010
State	Published - Jul 1 2014

Keywords

Cellulose in ionic liquid
Control of pore size
Electrospinning
Oil-water separation
Superoleophobic

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Materials Science(all)
Water Science and Technology
Mechanical Engineering

Access to Document

10.1016/j.desal.2014.03.010

Cite this

@article{49f4ed8e7a984564ac5489e2597c990f,

title = "Underwater superoleophobic cellulose/electrospun PVDF-HFP membranes for efficient oil/water separation",

abstract = "Electrospun polyvinylidene fluoride-co-hexafluoropropylene (PVDF-HFP) nanofibers have been modified with cellulose regenerated from ionic liquid solution. Three-dimensional impregnation of cellulose provides greater control over porosity, pore size, wettability as well as the mechanical and thermal properties of the electrospun membrane. Formation of smaller pores with narrower pore size distribution is achieved as the fibers are coated with cellulose matrix. At 15. wt.% cellulose, the mechanical properties of electrospun PVDF-HFP are enhanced as the elastic modulus increases from 17. MPa to 54. MPa and the tensile strength also improves from 5.5. MPa to 8.6. MPa. The resulting membrane exhibits superhydrophilicity and underwater supoeroleophobicity and is successfully applied for selective separation of water from oil with efficiencies up to 99.98%.",

keywords = "Cellulose in ionic liquid, Control of pore size, Electrospinning, Oil-water separation, Superoleophobic",

author = "{Ejaz Ahmed}, Farah and Lalia, {Boor Singh} and Nidal Hilal and Raed Hashaikeh",

year = "2014",

month = jul,

day = "1",

doi = "10.1016/j.desal.2014.03.010",

language = "English (US)",

volume = "344",

pages = "48--54",

journal = "Desalination",

issn = "0011-9164",

publisher = "Elsevier",

}

TY - JOUR

T1 - Underwater superoleophobic cellulose/electrospun PVDF-HFP membranes for efficient oil/water separation

AU - Ejaz Ahmed, Farah

AU - Lalia, Boor Singh

AU - Hilal, Nidal

AU - Hashaikeh, Raed

PY - 2014/7/1

Y1 - 2014/7/1

N2 - Electrospun polyvinylidene fluoride-co-hexafluoropropylene (PVDF-HFP) nanofibers have been modified with cellulose regenerated from ionic liquid solution. Three-dimensional impregnation of cellulose provides greater control over porosity, pore size, wettability as well as the mechanical and thermal properties of the electrospun membrane. Formation of smaller pores with narrower pore size distribution is achieved as the fibers are coated with cellulose matrix. At 15. wt.% cellulose, the mechanical properties of electrospun PVDF-HFP are enhanced as the elastic modulus increases from 17. MPa to 54. MPa and the tensile strength also improves from 5.5. MPa to 8.6. MPa. The resulting membrane exhibits superhydrophilicity and underwater supoeroleophobicity and is successfully applied for selective separation of water from oil with efficiencies up to 99.98%.

AB - Electrospun polyvinylidene fluoride-co-hexafluoropropylene (PVDF-HFP) nanofibers have been modified with cellulose regenerated from ionic liquid solution. Three-dimensional impregnation of cellulose provides greater control over porosity, pore size, wettability as well as the mechanical and thermal properties of the electrospun membrane. Formation of smaller pores with narrower pore size distribution is achieved as the fibers are coated with cellulose matrix. At 15. wt.% cellulose, the mechanical properties of electrospun PVDF-HFP are enhanced as the elastic modulus increases from 17. MPa to 54. MPa and the tensile strength also improves from 5.5. MPa to 8.6. MPa. The resulting membrane exhibits superhydrophilicity and underwater supoeroleophobicity and is successfully applied for selective separation of water from oil with efficiencies up to 99.98%.

KW - Cellulose in ionic liquid

KW - Control of pore size

KW - Electrospinning

KW - Oil-water separation

KW - Superoleophobic

UR - http://www.scopus.com/inward/record.url?scp=84897416209&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84897416209&partnerID=8YFLogxK

U2 - 10.1016/j.desal.2014.03.010

DO - 10.1016/j.desal.2014.03.010

M3 - Article

AN - SCOPUS:84897416209

SN - 0011-9164

VL - 344

SP - 48

EP - 54

JO - Desalination

JF - Desalination

ER -

Underwater superoleophobic cellulose/electrospun PVDF-HFP membranes for efficient oil/water separation

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this