Skip to main content
Log in

Antimicrobial and antifouling properties of versatile PPSU/carboxylated GO nanocomposite membrane against Gram-positive and Gram-negative bacteria and protein

  • Research Article
  • Published:
Environmental Science and Pollution Research Aims and scope Submit manuscript

Abstract

Biofouling is a serious issue in membrane-based water and wastewater treatment as it critically compromises the efficacy of the water treatment processes. This investigation demonstrates the antimicrobial and antifouling properties of a nanocomposite membrane system composed of carboxyl-functionalized graphene oxide (COOH-GO) and polyphenylsulfone (PPSU). The PPSU/COOH-GO nanocomposite membrane exhibited excellent antimicrobial properties, achieving maximum bacteriostasis rates of 74.2% and 81.1% against the representative Gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa, respectively) and 41.9% against the representative Gram-positive bacterium (Staphylococcus aureus). The PPSU/COOH-GO nanocomposite membrane inhibited the attachment, colonization, and the biofilm formation of three species. Antifouling was assessed through filtration experiments using a model foulant bovine serum albumin (BSA). The fouling mechanisms were investigated by Hermia’s models (complete blocking, intermediate blocking, standard blocking, and cake formation), and the analysis involved fitting the volumetric flux decline experimental data to models. The fouling study revealed a less irreversible fouling and increased flux recovery ratio for the PPSU/COOH-GO nanocomposite membrane. Complete blocking of pores and cake formation were the major fouling mechanisms for the membrane.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

Similar content being viewed by others

Abbreviations

PPSU:

polyphenylsulfone

COOH-GO:

carboxyl-functionalized graphene oxide

E. coli :

Escherichia coli

P. aeruginosa :

Pseudomonas aeruginosa

S. aureus :

Staphylococcus aureus

BSA:

bovine serum albumin

CFU:

colony-forming unit

TMP:

transmembrane pressure

J v :

pure water volumetric flux

J vp :

foulant volumetric flux

J v1 :

final water volumetric flux

J v RR :

flux recovery ratio

R t :

total fouling ratio

R r :

reversible fouling ratio

R ir :

irreversible fouling ratio

J vp0 :

initial volume flow rate

J vpt :

volume flow at a particular time

K c :

membrane surface area blocked per unit of permeate volume

t :

time

K s :

constant of the standard blocking model

K i :

constant of the intermediate blocking model

K cf :

constant of the cake formation model

References

Download references

Acknowledgments

The authors thank the Deanship of Scientific Research and RSSU at King Saud University for their technical support.

Funding

The authors extend their appreciation to the Deanship of Scientific Research at King Saud University for funding this work through research group no (RG-1439-85).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Javed Alam.

Additional information

Responsible editor: Giovanni Benelli

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Shukla, A.K., Alam, J., Ansari, M.A. et al. Antimicrobial and antifouling properties of versatile PPSU/carboxylated GO nanocomposite membrane against Gram-positive and Gram-negative bacteria and protein. Environ Sci Pollut Res 25, 34103–34113 (2018). https://doi.org/10.1007/s11356-018-3212-7

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11356-018-3212-7

Keywords

Navigation