TY - JOUR
T1 - Magnetic modulation of the transport of organophilic solutes through Supported Magnetic Ionic Liquid Membranes
AU - Daniel, Carla Isabel Lopes
AU - Rubio, Aurora M.
AU - Sebastião, P. J.
AU - Afonso, Carlos A M
AU - Storch, Jan
AU - Izák, Pavel
AU - Portugal, Carla A M
AU - Crespo, João G.
N1 - Sem pdf.
European Research Action Network-ERANET - ERA-CHEM/0001/2008;
EUI 2008- 03857;
Czech Science Foundation - P106/12/0569
PY - 2016/5/1
Y1 - 2016/5/1
N2 - The present work evaluates the influence of magnetic field on the transport of two model organic compounds, ibuprofen and α - pinene, through supported magnetic ionic liquids membranes (SMILMs). The membranes studied were prepared by incorporation of magnetic ionic liquids (MILs), [C11H21N2O]3 [GdCl3Br3], [C4mim] [FeCl4] and [C8mim] [FeCl4]. Transport studies were conducted in the absence and presence of a magnetic field with an intensity of 1.2T. The results obtained show that the magnetic field increases the diffusion coefficient of ibuprofen and α - pinene, improving their transport through the SMILM. The two transport studies performed, α - pinene in dodecane through a SMILM with [C4mim] [FeCl4], and α - pinene in hexane through a SMILM with [C8mim] [FeCl4], revealed a permeability increase of 51% and 29% respectively when exposed to the magnetic field, whereas transport studies of ibuprofen in dodecane through [C11H21N2O]3[GdCl3Br3] MIL showed a permeability increase of 59% under the same magnetic field conditions. The analysis of the magnetic field influence on solute permeation revealed that the permeability increase observed cannot be solely interpreted due to a decrease of MILs viscosity induced by the magnetic field. The magnetic dependence of solutes solubility in the MILs should also be considered.
AB - The present work evaluates the influence of magnetic field on the transport of two model organic compounds, ibuprofen and α - pinene, through supported magnetic ionic liquids membranes (SMILMs). The membranes studied were prepared by incorporation of magnetic ionic liquids (MILs), [C11H21N2O]3 [GdCl3Br3], [C4mim] [FeCl4] and [C8mim] [FeCl4]. Transport studies were conducted in the absence and presence of a magnetic field with an intensity of 1.2T. The results obtained show that the magnetic field increases the diffusion coefficient of ibuprofen and α - pinene, improving their transport through the SMILM. The two transport studies performed, α - pinene in dodecane through a SMILM with [C4mim] [FeCl4], and α - pinene in hexane through a SMILM with [C8mim] [FeCl4], revealed a permeability increase of 51% and 29% respectively when exposed to the magnetic field, whereas transport studies of ibuprofen in dodecane through [C11H21N2O]3[GdCl3Br3] MIL showed a permeability increase of 59% under the same magnetic field conditions. The analysis of the magnetic field influence on solute permeation revealed that the permeability increase observed cannot be solely interpreted due to a decrease of MILs viscosity induced by the magnetic field. The magnetic dependence of solutes solubility in the MILs should also be considered.
KW - Ibuprofen
KW - Magnetic field
KW - Magnetic ionic liquids (MILs)
KW - Solute transport modulation
KW - Supported Magnetic Ionic Liquid Membranes (SMILMs)
KW - α - pinene
UR - http://www.scopus.com/inward/record.url?scp=84955473100&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2015.11.025
DO - 10.1016/j.memsci.2015.11.025
M3 - Article
AN - SCOPUS:84955473100
VL - 505
SP - 36
EP - 43
JO - Journal of Membrane Science
JF - Journal of Membrane Science
SN - 0376-7388
ER -