Investigating membranes and membrane processes with atomic force microscopy

W. Richard Bowen, Nidal Hilal

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Citations (Scopus)

Abstract

This chapter concerns pressure-driven membrane processes-microfiltration, ultra filtration, nanofiltration, and reverse osmosis. Membrane processes are one of the most significant developments in process engineering in recent times. Membranes find widespread application in fields as diverse as water treatment, pharmaceutical processing, food processing, biotechnology, sensors, and batteries. Membranes are most usually thin polymeric sheets, having pores in the range from the micrometer to subnanometer, which act as advanced filtration materials. Atomic force microscopy (AFM) is one means of imaging objects of dimensions from about the wavelength of light to those below a nanometer. Thus, in the case of membranes, it is possible to visualize the membrane surface properties, such as pores and morphology, using AFM. The chapter reviews the potential of AFM for the investigation of membranes and membrane processes using illustrative examples that outline the range of possibilities of AFM studies for membrane technology. Some more advanced topics are considered, such as the correspondence between surface pore dimensions from AFM and MWCO (molecular weight cut-off); imaging in liquid and the determination of surface electrical properties; effects of surface roughness on interactions with particles; 'visualization' of the rejection of a colloid by a membrane pore, and the use of AFM measurements in membrane development. © 2009

Original languageEnglish
Title of host publicationAtomic Force Microscopy in Process Engineering
PublisherElsevier Ltd
Pages107-138
Number of pages32
ISBN (Print)9781856175173
DOIs
Publication statusPublished - 2009
Externally publishedYes

Fingerprint

atomic force microscopy
membranes
porosity
osmosis
food processing
reverse osmosis
biotechnology
water treatment
rejection
surface properties
colloids
electric batteries
micrometers
molecular weight
surface roughness
cut-off
electrical properties
engineering
sensors
liquids

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Bowen, W. R., & Hilal, N. (2009). Investigating membranes and membrane processes with atomic force microscopy. In Atomic Force Microscopy in Process Engineering (pp. 107-138). Elsevier Ltd. https://doi.org/10.1016/B978-1-85617-517-3.00004-3

Investigating membranes and membrane processes with atomic force microscopy. / Bowen, W. Richard; Hilal, Nidal.

Atomic Force Microscopy in Process Engineering. Elsevier Ltd, 2009. p. 107-138.

Research output: Chapter in Book/Report/Conference proceedingChapter

Bowen, WR & Hilal, N 2009, Investigating membranes and membrane processes with atomic force microscopy. in Atomic Force Microscopy in Process Engineering. Elsevier Ltd, pp. 107-138. https://doi.org/10.1016/B978-1-85617-517-3.00004-3
Bowen WR, Hilal N. Investigating membranes and membrane processes with atomic force microscopy. In Atomic Force Microscopy in Process Engineering. Elsevier Ltd. 2009. p. 107-138 https://doi.org/10.1016/B978-1-85617-517-3.00004-3
Bowen, W. Richard ; Hilal, Nidal. / Investigating membranes and membrane processes with atomic force microscopy. Atomic Force Microscopy in Process Engineering. Elsevier Ltd, 2009. pp. 107-138
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