Ultrathin graphene oxide membranes for water purification

Jin Hyeok Jang, Ju Yeon Woo, Jaeyeol Lee, Chang-Soo Han

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Recently, the lack of clean and safe drinking water is huge challenge because of rapid population growth, severe droughts and environmental pollution. Two-dimensional Graphene oxide (GO) membrane with their ultrafast permanence, outstanding mechanical properties, high chemical stability is increasingly emerging as promising candidate for water purification process. But GO-based water purification technology still needs further investigation and optimization. Here, we fabricated ultrathin graphene oxide membrane by the vacuum filtration method, and successfully applied for the water purification. GO membranes with several tenth nm thickness prepared show well stacked layer structure, as characterized by atomic force microscopy and scanning electron microscopy. We have tried pressure-driven filtration to examine water flux, retention and rejection ability of the GO membranes in water purification process. The ultrathin graphene oxide membrane showed high retention and rejection rates for the charged dyes and moderate results for noncharged organic dye.

Original languageEnglish
Title of host publicationIEEE-NANO 2015 - 15th International Conference on Nanotechnology
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages212-215
Number of pages4
ISBN (Print)9781467381550
DOIs
Publication statusPublished - 2016 Jan 20
Event15th IEEE International Conference on Nanotechnology, IEEE-NANO 2015 - Rome, Italy
Duration: 2015 Jul 272015 Jul 30

Other

Other15th IEEE International Conference on Nanotechnology, IEEE-NANO 2015
CountryItaly
CityRome
Period15/7/2715/7/30

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Keywords

  • Graphene oxide
  • Pressure-driven filtration
  • Water purification

ASJC Scopus subject areas

  • Process Chemistry and Technology
  • Electrical and Electronic Engineering
  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films

Cite this

Jang, J. H., Woo, J. Y., Lee, J., & Han, C-S. (2016). Ultrathin graphene oxide membranes for water purification. In IEEE-NANO 2015 - 15th International Conference on Nanotechnology (pp. 212-215). [7388960] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/NANO.2015.7388960