Antifouling properties of two-dimensional molybdenum disulfide and graphene oxide

Iftaykhairul Alam, Linda M. Guiney, Mark C Hersam, Indranil Chowdhury

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Fouling remains one of the biggest challenges in a myriad of applications such as water filtration, ship hulls, biomedical devices, coating, and painting. Fouling severely hampers the performance and increases the operation and maintenance costs in industries. There is a critical need to develop antifouling surfaces, and two-dimensional (2D) materials, such as graphene oxide (GO) and molybdenum disulfide (MoS2), have shown potential for antifouling surface preparation due to some unique properties. Here, the antifouling properties of these two materials were investigated by observing the deposition kinetics of bacteria and natural organic matter (NOM) using a quartz crystal microbalance with dissipation monitoring (QCM-D). Suwannee River humic acid (SRHA) and E. coli K-12 were used as model NOM and bacteria, respectively. Overall, MoS2 showed slightly better antifouling properties compared to GO. In most cases, the deposition of NOM and E. coli was significantly lower on MoS2 than GO due to the presence of functional groups on GO that bind more easily with the foulants. Deposition of NOM was at least 1.5 times lower on the MoS2 surface than on the GO surface in the presence of both monovalent (Na+) and divalent (Mg2+) cations. However, the presence of 0.5 mM divalent cations (Ca2+, Mg2+) with NOM reduced the antifouling properties of both MoS2 and GO by a factor of ≥1.5 due to a salt bridging effect and reduced energy barrier.

Original languageEnglish
Pages (from-to)1628-1639
Number of pages12
JournalEnvironmental Science: Nano
Volume5
Issue number7
DOIs
Publication statusPublished - Jan 1 2018

Fingerprint

Graphite
antifouling
molybdenum
Oxides
Graphene
Molybdenum
Biological materials
oxide
organic matter
Fouling
fouling
Escherichia coli
Bacteria
cation
Positive ions
Water filtration
Humic Substances
bacterium
Quartz crystal microbalances
Energy barriers

ASJC Scopus subject areas

  • Materials Science (miscellaneous)
  • Environmental Science(all)

Cite this

Antifouling properties of two-dimensional molybdenum disulfide and graphene oxide. / Alam, Iftaykhairul; Guiney, Linda M.; Hersam, Mark C; Chowdhury, Indranil.

In: Environmental Science: Nano, Vol. 5, No. 7, 01.01.2018, p. 1628-1639.

Research output: Contribution to journalArticle

Alam, Iftaykhairul ; Guiney, Linda M. ; Hersam, Mark C ; Chowdhury, Indranil. / Antifouling properties of two-dimensional molybdenum disulfide and graphene oxide. In: Environmental Science: Nano. 2018 ; Vol. 5, No. 7. pp. 1628-1639.
@article{943d8e65efc941eaa5ee4d3a3dca6531,
title = "Antifouling properties of two-dimensional molybdenum disulfide and graphene oxide",
abstract = "Fouling remains one of the biggest challenges in a myriad of applications such as water filtration, ship hulls, biomedical devices, coating, and painting. Fouling severely hampers the performance and increases the operation and maintenance costs in industries. There is a critical need to develop antifouling surfaces, and two-dimensional (2D) materials, such as graphene oxide (GO) and molybdenum disulfide (MoS2), have shown potential for antifouling surface preparation due to some unique properties. Here, the antifouling properties of these two materials were investigated by observing the deposition kinetics of bacteria and natural organic matter (NOM) using a quartz crystal microbalance with dissipation monitoring (QCM-D). Suwannee River humic acid (SRHA) and E. coli K-12 were used as model NOM and bacteria, respectively. Overall, MoS2 showed slightly better antifouling properties compared to GO. In most cases, the deposition of NOM and E. coli was significantly lower on MoS2 than GO due to the presence of functional groups on GO that bind more easily with the foulants. Deposition of NOM was at least 1.5 times lower on the MoS2 surface than on the GO surface in the presence of both monovalent (Na+) and divalent (Mg2+) cations. However, the presence of 0.5 mM divalent cations (Ca2+, Mg2+) with NOM reduced the antifouling properties of both MoS2 and GO by a factor of ≥1.5 due to a salt bridging effect and reduced energy barrier.",
author = "Iftaykhairul Alam and Guiney, {Linda M.} and Hersam, {Mark C} and Indranil Chowdhury",
year = "2018",
month = "1",
day = "1",
doi = "10.1039/c8en00202a",
language = "English",
volume = "5",
pages = "1628--1639",
journal = "Environmental Science: Nano",
issn = "2051-8153",
publisher = "Royal Society of Chemistry",
number = "7",

}

TY - JOUR

T1 - Antifouling properties of two-dimensional molybdenum disulfide and graphene oxide

AU - Alam, Iftaykhairul

AU - Guiney, Linda M.

AU - Hersam, Mark C

AU - Chowdhury, Indranil

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Fouling remains one of the biggest challenges in a myriad of applications such as water filtration, ship hulls, biomedical devices, coating, and painting. Fouling severely hampers the performance and increases the operation and maintenance costs in industries. There is a critical need to develop antifouling surfaces, and two-dimensional (2D) materials, such as graphene oxide (GO) and molybdenum disulfide (MoS2), have shown potential for antifouling surface preparation due to some unique properties. Here, the antifouling properties of these two materials were investigated by observing the deposition kinetics of bacteria and natural organic matter (NOM) using a quartz crystal microbalance with dissipation monitoring (QCM-D). Suwannee River humic acid (SRHA) and E. coli K-12 were used as model NOM and bacteria, respectively. Overall, MoS2 showed slightly better antifouling properties compared to GO. In most cases, the deposition of NOM and E. coli was significantly lower on MoS2 than GO due to the presence of functional groups on GO that bind more easily with the foulants. Deposition of NOM was at least 1.5 times lower on the MoS2 surface than on the GO surface in the presence of both monovalent (Na+) and divalent (Mg2+) cations. However, the presence of 0.5 mM divalent cations (Ca2+, Mg2+) with NOM reduced the antifouling properties of both MoS2 and GO by a factor of ≥1.5 due to a salt bridging effect and reduced energy barrier.

AB - Fouling remains one of the biggest challenges in a myriad of applications such as water filtration, ship hulls, biomedical devices, coating, and painting. Fouling severely hampers the performance and increases the operation and maintenance costs in industries. There is a critical need to develop antifouling surfaces, and two-dimensional (2D) materials, such as graphene oxide (GO) and molybdenum disulfide (MoS2), have shown potential for antifouling surface preparation due to some unique properties. Here, the antifouling properties of these two materials were investigated by observing the deposition kinetics of bacteria and natural organic matter (NOM) using a quartz crystal microbalance with dissipation monitoring (QCM-D). Suwannee River humic acid (SRHA) and E. coli K-12 were used as model NOM and bacteria, respectively. Overall, MoS2 showed slightly better antifouling properties compared to GO. In most cases, the deposition of NOM and E. coli was significantly lower on MoS2 than GO due to the presence of functional groups on GO that bind more easily with the foulants. Deposition of NOM was at least 1.5 times lower on the MoS2 surface than on the GO surface in the presence of both monovalent (Na+) and divalent (Mg2+) cations. However, the presence of 0.5 mM divalent cations (Ca2+, Mg2+) with NOM reduced the antifouling properties of both MoS2 and GO by a factor of ≥1.5 due to a salt bridging effect and reduced energy barrier.

UR - http://www.scopus.com/inward/record.url?scp=85049919544&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85049919544&partnerID=8YFLogxK

U2 - 10.1039/c8en00202a

DO - 10.1039/c8en00202a

M3 - Article

VL - 5

SP - 1628

EP - 1639

JO - Environmental Science: Nano

JF - Environmental Science: Nano

SN - 2051-8153

IS - 7

ER -