New (polydimethylsiloxane (PDMS)/Graphene oxide (GO))/poly valerolactone (PVL) pervaporation composite membrane: preparation, characterization and ethylene dichloride / water separation evaluation

International Journal of Industrial Chemistry

دوره 13، شماره 3، آذر 2022

نوع مقاله: research article

شناسه دیجیتال (DOI): 10.47176/IJIC.13.3.1

نویسندگان

Samira Safaei Nasab¹؛ Susan Khosroyar^{* 2}؛ Ali Arasteh Nodeh³؛ Mahmodreza Khadangi Mahrrod²؛ Vahid Hakimzadeh³

¹Department of Chemical Engineering,Quchan Branch,Islamic Azad University,Quchan,Iran

²Assistant Professor,Department of Chemical Engineering,Quchan Branch,Islamic Azad University,Quchan,Iran

³Associated Professor,Department of Chemical Engineering,Quchan Branch,Islamic Azad University,Quchan,Iran

چکیده

In this research, a novel type of pervaporation membrane was developed by (polydimethylsiloxane (PDMS)/Graphene oxide (GO))/poly valerolactone (PVL) composite membrane. This prepared membrane was used to separate ethylene dichloride from water. The electrospinning method was used to nanofiber PVL preparation as a support layer for the composite membrane.To increase the selectivity of the optimized PVL nanofiber membrane and increase the affinity with ethylene dichloride; the membrane was coated with a dense PDMS/GO layer.The membranes were characterized by SEM, FTIR, contact angle and swelling measurements. Also the membrane performance in ethylene dichloride separation and its separation factors versus temperature (30-70 oC) was evaluated. Results show that with increasing temperature up to 70 oC, the total flux and the separation factor of (PDMS)/PVL simultaneously increase from about 95 to 157 g/(m2.h) and from 2.2 to 10.5, respectively. For (GO/PDMS)/PVL membranes, the total flux and the separation factor of (PDMS)/PVL simultaneously increase from about 113 to 191 g/(m2.h) and from 3.4 to 11.65, respectively.