Polyvinylidene fluoride membranes with enhanced antibacterial and low fouling properties by incorporating ZnO/rGO composites

Woon Chan Chong, Ebrahim Mahmoudi, Ying Tao Chung, Muneer M. Ba-Abbad, Chai Hoon Koo, Abdul Wahab Mohammad

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

In this study, the performance enhancement of polyvinylidene fluoride (PVDF) polymer as one of the most hydrophobic membrane material, blended with zinc oxide (ZnO) and zinc oxide/reduced graphene oxide (ZnO/rGO) was investigated. ZnO/rGO composites which acted as inorganic filler were synthesized via a facile precipitation method using zinc nitrate (Zn(NO3)2) as zinc precursor and sodium hydroxide (NaOH) as reducing agent. The synthesized ZnO/rGO composites with various Zn loadings were analyzed in terms of particles size and surface charge. The composites with highest surface charge and smallest particles size were then selected for PVDF membrane fabrication. The membranes were produced via immersion-precipitation method and they were characterized by water permeation test, contact angle, morphology, bovine serum albumin (BSA) rejection, flux recovery and antibacterial activity. Based on the findings, ZnO/rGO composites gave the most hydrophilic effect to the PVDF membranes, resulted in 61% of permeation flux increment in comparison with neat PVDF membranes. Simultaneously, the ZnO/rGO mixed matrix membranes (MMMs) showed the highest BSA rejection of 32% and flux recovery ratio of 48%, implying the improvement of the membranes’ fouling resistance. Besides, there was no release of Zn element in permeate of ZnO/rGO MMMs which implied the strong bonding between ZnO/rGO composite with PVDF membranes. In addition, the superior antibacterial property of ZnO/rGO MMMs showed great potential in biofouling mitigation. Hence, the utilization of ZnO/rGO MMMs was highly recommended in various applications involving fouling and biofouling issues.

Original languageEnglish
Pages (from-to)12-21
Number of pages10
JournalDesalination and Water Treatment
Volume96
DOIs
Publication statusPublished - 1 Nov 2017

Fingerprint

Fouling
Zinc oxide
fouling
fluoride
zinc
oxide
membrane
Membranes
Composite materials
Biofouling
Surface charge
Fluxes
matrix
biofouling
Permeation
Zinc
Particle size
serum
Recovery
Membrane fouling

Keywords

  • Antibacterial
  • Biofouling
  • Graphene oxide
  • Mixed matrix membranes
  • ZnO

ASJC Scopus subject areas

  • Water Science and Technology
  • Ocean Engineering
  • Pollution

Cite this

Polyvinylidene fluoride membranes with enhanced antibacterial and low fouling properties by incorporating ZnO/rGO composites. / Chong, Woon Chan; Mahmoudi, Ebrahim; Chung, Ying Tao; Ba-Abbad, Muneer M.; Koo, Chai Hoon; Mohammad, Abdul Wahab.

In: Desalination and Water Treatment, Vol. 96, 01.11.2017, p. 12-21.

Research output: Contribution to journalArticle

Chong, Woon Chan ; Mahmoudi, Ebrahim ; Chung, Ying Tao ; Ba-Abbad, Muneer M. ; Koo, Chai Hoon ; Mohammad, Abdul Wahab. / Polyvinylidene fluoride membranes with enhanced antibacterial and low fouling properties by incorporating ZnO/rGO composites. In: Desalination and Water Treatment. 2017 ; Vol. 96. pp. 12-21.
@article{92d11d550a38481bb3792a38aec5d00b,
title = "Polyvinylidene fluoride membranes with enhanced antibacterial and low fouling properties by incorporating ZnO/rGO composites",
abstract = "In this study, the performance enhancement of polyvinylidene fluoride (PVDF) polymer as one of the most hydrophobic membrane material, blended with zinc oxide (ZnO) and zinc oxide/reduced graphene oxide (ZnO/rGO) was investigated. ZnO/rGO composites which acted as inorganic filler were synthesized via a facile precipitation method using zinc nitrate (Zn(NO3)2) as zinc precursor and sodium hydroxide (NaOH) as reducing agent. The synthesized ZnO/rGO composites with various Zn loadings were analyzed in terms of particles size and surface charge. The composites with highest surface charge and smallest particles size were then selected for PVDF membrane fabrication. The membranes were produced via immersion-precipitation method and they were characterized by water permeation test, contact angle, morphology, bovine serum albumin (BSA) rejection, flux recovery and antibacterial activity. Based on the findings, ZnO/rGO composites gave the most hydrophilic effect to the PVDF membranes, resulted in 61{\%} of permeation flux increment in comparison with neat PVDF membranes. Simultaneously, the ZnO/rGO mixed matrix membranes (MMMs) showed the highest BSA rejection of 32{\%} and flux recovery ratio of 48{\%}, implying the improvement of the membranes’ fouling resistance. Besides, there was no release of Zn element in permeate of ZnO/rGO MMMs which implied the strong bonding between ZnO/rGO composite with PVDF membranes. In addition, the superior antibacterial property of ZnO/rGO MMMs showed great potential in biofouling mitigation. Hence, the utilization of ZnO/rGO MMMs was highly recommended in various applications involving fouling and biofouling issues.",
keywords = "Antibacterial, Biofouling, Graphene oxide, Mixed matrix membranes, ZnO",
author = "Chong, {Woon Chan} and Ebrahim Mahmoudi and Chung, {Ying Tao} and Ba-Abbad, {Muneer M.} and Koo, {Chai Hoon} and Mohammad, {Abdul Wahab}",
year = "2017",
month = "11",
day = "1",
doi = "10.5004/dwt.2017.20742",
language = "English",
volume = "96",
pages = "12--21",
journal = "Desalination and Water Treatment",
issn = "1944-3994",
publisher = "Taylor and Francis Ltd.",

}

TY - JOUR

T1 - Polyvinylidene fluoride membranes with enhanced antibacterial and low fouling properties by incorporating ZnO/rGO composites

AU - Chong, Woon Chan

AU - Mahmoudi, Ebrahim

AU - Chung, Ying Tao

AU - Ba-Abbad, Muneer M.

AU - Koo, Chai Hoon

AU - Mohammad, Abdul Wahab

PY - 2017/11/1

Y1 - 2017/11/1

N2 - In this study, the performance enhancement of polyvinylidene fluoride (PVDF) polymer as one of the most hydrophobic membrane material, blended with zinc oxide (ZnO) and zinc oxide/reduced graphene oxide (ZnO/rGO) was investigated. ZnO/rGO composites which acted as inorganic filler were synthesized via a facile precipitation method using zinc nitrate (Zn(NO3)2) as zinc precursor and sodium hydroxide (NaOH) as reducing agent. The synthesized ZnO/rGO composites with various Zn loadings were analyzed in terms of particles size and surface charge. The composites with highest surface charge and smallest particles size were then selected for PVDF membrane fabrication. The membranes were produced via immersion-precipitation method and they were characterized by water permeation test, contact angle, morphology, bovine serum albumin (BSA) rejection, flux recovery and antibacterial activity. Based on the findings, ZnO/rGO composites gave the most hydrophilic effect to the PVDF membranes, resulted in 61% of permeation flux increment in comparison with neat PVDF membranes. Simultaneously, the ZnO/rGO mixed matrix membranes (MMMs) showed the highest BSA rejection of 32% and flux recovery ratio of 48%, implying the improvement of the membranes’ fouling resistance. Besides, there was no release of Zn element in permeate of ZnO/rGO MMMs which implied the strong bonding between ZnO/rGO composite with PVDF membranes. In addition, the superior antibacterial property of ZnO/rGO MMMs showed great potential in biofouling mitigation. Hence, the utilization of ZnO/rGO MMMs was highly recommended in various applications involving fouling and biofouling issues.

AB - In this study, the performance enhancement of polyvinylidene fluoride (PVDF) polymer as one of the most hydrophobic membrane material, blended with zinc oxide (ZnO) and zinc oxide/reduced graphene oxide (ZnO/rGO) was investigated. ZnO/rGO composites which acted as inorganic filler were synthesized via a facile precipitation method using zinc nitrate (Zn(NO3)2) as zinc precursor and sodium hydroxide (NaOH) as reducing agent. The synthesized ZnO/rGO composites with various Zn loadings were analyzed in terms of particles size and surface charge. The composites with highest surface charge and smallest particles size were then selected for PVDF membrane fabrication. The membranes were produced via immersion-precipitation method and they were characterized by water permeation test, contact angle, morphology, bovine serum albumin (BSA) rejection, flux recovery and antibacterial activity. Based on the findings, ZnO/rGO composites gave the most hydrophilic effect to the PVDF membranes, resulted in 61% of permeation flux increment in comparison with neat PVDF membranes. Simultaneously, the ZnO/rGO mixed matrix membranes (MMMs) showed the highest BSA rejection of 32% and flux recovery ratio of 48%, implying the improvement of the membranes’ fouling resistance. Besides, there was no release of Zn element in permeate of ZnO/rGO MMMs which implied the strong bonding between ZnO/rGO composite with PVDF membranes. In addition, the superior antibacterial property of ZnO/rGO MMMs showed great potential in biofouling mitigation. Hence, the utilization of ZnO/rGO MMMs was highly recommended in various applications involving fouling and biofouling issues.

KW - Antibacterial

KW - Biofouling

KW - Graphene oxide

KW - Mixed matrix membranes

KW - ZnO

UR - http://www.scopus.com/inward/record.url?scp=85040829175&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85040829175&partnerID=8YFLogxK

U2 - 10.5004/dwt.2017.20742

DO - 10.5004/dwt.2017.20742

M3 - Article

VL - 96

SP - 12

EP - 21

JO - Desalination and Water Treatment

JF - Desalination and Water Treatment

SN - 1944-3994

ER -