Synthesis and characterization of ETS-10/Chitosan nanocomposite membranes for pervaporation
Chitosan (CS) and microporous titanosilicate ETS-10/CS mixed matrix membranes (MMMs) were prepared. The pervaporation performance was tested on the of waterethanol mixtures in the range 85-96 wt. % ethanol. The permeate flux increased from 0.45 to 0.55 kg m-2 h-1 at 50 ºC for the ETS-10/CS MMM with...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2014 |
| País: | España |
| Institución: | Universidad de Cantabria (UC) |
| Repositorio: | UCrea Repositorio Abierto de la Universidad de Cantabria |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.unican.es:10902/9830 |
| Acceso en línea: | http://hdl.handle.net/10902/9830 |
| Access Level: | acceso abierto |
| Palabra clave: | Mixed matrix membranes Pervaporation dehydration Water-ethanol separation Chitosan Microporous titanosilicate ETS-10 |
| Sumario: | Chitosan (CS) and microporous titanosilicate ETS-10/CS mixed matrix membranes (MMMs) were prepared. The pervaporation performance was tested on the of waterethanol mixtures in the range 85-96 wt. % ethanol. The permeate flux increased from 0.45 to 0.55 kg m-2 h-1 at 50 ºC for the ETS-10/CS MMM with respect to the pure CS membranes. Characterization by SEM and TEM, XRD, DSC and TGA allowed inferring an intimate contact between the dispersed ETS-10 and the continuous chitosan phase. The 5 wt. % loading of titanosilicate scarcely decreased the hydrophilic character of the mixed matrix membrane but increased the molecular sieving effect on the transport and separation properties, thus affecting the membrane behavior on pervaporation. |
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