3-Dimensional characterization of membrane with nanoporous structure using TEM tomography and image analysis

F. H. She, K. Nihara, W. M. Gao, P. D. Hodgson, H. Jinnai, L. X. Kong

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

The nanoporous structure of a membrane varies in a 3-dimensional (3-D) space and has remarkable influences on the filtration or desalination achieved, fouling potentials and therefore, the quality of yielded water. Knowledge of the 3-D nanoporous structure is thus vital to understanding and predicting its performance. A novel method by incorporating transmission electronic microtomography, image processing and 3-D reconstruction is introduced to characterize membranes with nano structures. The reconstruction algorithm allows for the visualization of 3-D nanoporous structure in a non-destructive way from any directions. This novel technique leads to in-depth understanding and accurate prediction of filtration performance.

Original languageEnglish
Pages (from-to)757-761
Number of pages5
JournalDesalination
Volume250
Issue number2
DOIs
Publication statusPublished - 2010 Jan 15
Externally publishedYes

Keywords

  • 3-D reconstruction
  • Diatom
  • Filtration membrane
  • Nanoporous structure
  • Transmission electronic microtomography

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)
  • Water Science and Technology
  • Mechanical Engineering

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