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Related Experiment Video

Updated: Nov 18, 2025

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2D MoS2 nanoplatelets for fouling resistant membrane surface.

Fathima Arshad1, Cyril Aubry2, Florent Ravaux2

  • 1Department of Civil Infrastructure and Environment Engineering, Khalifa University of Science and Technology, Abu Dhabi, P O Box : 127788, United Arab Emirates.

Journal of Colloid and Interface Science
|February 9, 2021
PubMed
Summary

Green synthesis of 2D Molybdenum disulfide (MoS2) nanoplatelets created an effective anti-fouling coating for nanofiltration membranes. The MoS2-coated membrane showed significantly reduced fouling and improved flux recovery in water treatment applications.

Keywords:
2D MoS(2) nanoplateletsAntifoulingDispersive surfaceHydrophobicityInterfacial propertiesNanofiltration membraneSurface roughnessl-DOPA

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Area of Science:

  • Materials Science
  • Environmental Science
  • Chemical Engineering

Background:

  • Membrane fouling remains a significant challenge in water treatment, reducing efficiency and increasing operational costs.
  • Developing effective anti-fouling strategies is crucial for sustainable water purification technologies.

Purpose of the Study:

  • To synthesize 2D Molybdenum disulfide (MoS2) nanoplatelets using a green method.
  • To coat MoS2 nanoplatelets onto thin film composite nanofiltration (TFC-NFG) membranes.
  • To evaluate the anti-fouling performance of the modified membranes in water treatment.

Main Methods:

  • Green synthesis of MoS2 nanoplatelets using l-Cysteine.
  • Hydrophilic coating of MoS2 onto TFC-NFG membranes using l-DOPA.
  • Accelerated fouling experiments using bovine serum albumin (BSA).
  • Flux decline and flux recovery measurements.

Main Results:

  • MoS2-coated membranes exhibited excellent resistance to BSA fouling, with minimal flux decline in the first hour.
  • After 5 hours, MoS2-coated membranes showed only 26% flux reduction compared to 45% for uncoated membranes.
  • MoS2-coated membranes achieved a higher flux recovery rate (85.4%) after washing.

Conclusions:

  • 2D MoS2 nanoplatelets serve as an effective anti-fouling coating for nanofiltration membranes.
  • The anti-fouling properties are attributed to MoS2's unique interfacial characteristics, including low surface tension and negative charge.
  • This research opens possibilities for applying other 2D nanomaterials in water treatment and desalination.