Graphene membranes for water desalination

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Abstract

Extensive environmental pollution caused by worldwide industrialization and population growth has led to a water shortage. This problem lowers the quality of human life and wastes a large amount of money worldwide each year due to the related consequences. One main solution for this challenge is water purification. State-of-the-art water purification necessitates the implementation of novel materials and technologies that are cost and energy efficient. In this regard, graphene nanomaterials, with their unique physicochemical properties, are an optimum choice. These materials offer extraordinarily high surface area, mechanical durability, atomic thickness, nanosized pores and reactivity toward polar and non-polar water pollutants. These characteristics impart high selectivity and water permeability, and thus provide excellent water purification efficiency. This review introduces the potential of graphene membranes for water desalination. Although literature reviews have mostly concerned graphene's capability for the adsorption and photocatalysis of water pollutants, updated knowledge related to its sieving properties is quite limited.

Original languageEnglish
Article number427
Number of pages16
JournalNPG ASIA MATERIALS
Volume9
DOIs
Publication statusPublished - 25 Aug 2017
MoE publication typeA2 Review article in a scientific journal

Keywords

  • SINGLE-LAYER GRAPHENE
  • OF-THE-ART
  • OXIDE MEMBRANES
  • SEAWATER DESALINATION
  • THERMAL-CONDUCTIVITY
  • SEPARATION MEMBRANES
  • NANOPOROUS GRAPHENE
  • INTRINSIC DEFECTS
  • NEXT-GENERATION
  • GRAPHITE OXIDE

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