TiO₂ Polyamide Thin Film Nanocomposite Reverses Osmosis Membrane for Water Desalination.

Membranes (Basel)

Department of Chemical Engineering, University of Missouri, Columbia, MO 65211, USA.

Published: August 2018

In this study, TiO₂ nanoparticles were inserted into the polyamide layer of traditional thin film composite membrane. The nanoparticles were dispersed in a trimesoyl chloride-hexane solution before interfacial polymerization with -phenylenediamine-aqueous solution. Membrane characterization was performed via contact angle measurements, atomic force microscopy (AFM), scanning electron microscopy (SEM), and water flux, salt rejection, and fouling resistance evaluation. The results indicate that TiO₂ could effectively improve membrane performance. Water flux increased from 40 to 65 L/m² h by increasing NPs concentration from 0 to 0.1 wt. %, while NaCl rejection was above 96%. Moreover, the modified membrane demonstrated better organic fouling resistance and robust antibacterial efficiency.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6161242PMC
http://dx.doi.org/10.3390/membranes8030066DOI Listing

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