Facilitated transport of thiophenes through Ag2O-filled PDMS membranes
نویسندگان
چکیده
Facilitated transport membranes of polydimethylsiloxane (PDMS) with silver oxide (Ag2O) as the carrier were prepared and used for the separation of thiophenes/n-octane mixtures. The effect of the degree of Ag2O loading, feed temperature on the pervaporation properties of Ag2O-filled membranes was investigated experimentally. Ag2O-filling leads to an increase in selectivity to thiophenes but a decrease in total flux simultaneously. Feed temperature shows different impact on selectivity of thiophenes for Ag2O-filled and unfilled membranes because of the distinct transport mechanism within them. Selectivity-permeability trade-off was analyzed for Ag2O-filled and unfilled membranes.
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