Nanofluidic Carbon Nanotube Membranes: Applications for Water Purification and Desalination

Olgica Bakajin, Aleksandr Noy, Francesco Fornasiero, Costas P. Grigoropoulos, Jason K. Holt, Jung Bin In, Sangil Kim, Hyung Gyu Park

Research output: Chapter in Book/Report/Conference proceedingChapter

19 Scopus citations


The unique geometry and internal structure of carbon nanotubes (CNTs) give rise to newly discovered phenomena of the ultraefficient transport of water through these ultra-narrow molecular pipes. Water transport in nanometer-size nanotube pores is orders of magnitude faster than transport in other pores of comparable size. We discuss the basic physical principles of the ultraefficient transport in CNTs, the fabrication of CNT membranes, and their nanofiltration and ion exclusion properties. A rare combination of transport efficiency and selectivity makes CNT membranes a highly promising technological platform for the next-generation desalination and water purification technologies. This chapter discusses the potential of these applications for improving water quality.

Original languageEnglish (US)
Title of host publicationNanotechnology Applications for Clean Water
PublisherElsevier Inc.
Number of pages17
ISBN (Print)9780815515784
StatePublished - 2009
Externally publishedYes

ASJC Scopus subject areas

  • Chemical Engineering(all)


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