Electrochemically Active Polymeric Hollow Fibers based on Poly(ether- b -amide)/Carbon Nanotubes

Carolina Cuevas Mendoza, Dooli Kim, Krishna Katuri, Pascal Saikaly, Suzana Pereira Nunes

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

A simple and effective method to incorporate catalytic activity to a hollow fiber membrane is reported. Polyetherimide hollow fiber membranes were coated with a solution containing carboxyl-functionalized multi-walled carbon nanotubes and poly(ether-b-amide). Electron microscopy images confirmed the presence of a layer of percolating carbon nanotubes on the surface of the membranes. Cyclic voltammetry and linear swept voltammetry experiments showed that these membranes are able to drive the reactions of hydrogen evolution, and oxygen reduction, making them a cheaper, and greener substitute for platinum based cathodes in microbial bioelectrochemical systems. Water flux and molecular weight cut off experiments indicated that the electrochemically active coating layer does not affect the ultrafiltration performance of the membrane.
Original languageEnglish (US)
Pages (from-to)323-328
Number of pages6
JournalJournal of Membrane Science
Volume545
DOIs
StatePublished - Sep 18 2017

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