Selective Transport of Sulfur Dioxide through Polymer Membranes. 1. Polyacrylate and Cellulose Triacetate Single-Layer Membranes

1980 ◽  
Vol 19 (4) ◽  
pp. 609-616 ◽  
Author(s):  
Donald L Kuehne ◽  
Sheldon K. Friedlander
Keyword(s):  
Sulfur Dioxide ◽  
Polymer Membranes ◽  
Single Layer ◽  
Cellulose Triacetate ◽  
Selective Transport

Microfluidic operations using deformable polymer membranes fabricated by single layer soft lithography

Lab on a Chip ◽  
2005 ◽  
Vol 5 (3) ◽  
pp. 350 ◽  
Author(s):  
Narayan SundararajanAuthors contributed equ ◽  
Dongshin KimCurrent address: Department of B ◽  
Andrew A. Berlin
Keyword(s):  
Soft Lithography ◽  
Polymer Membranes ◽  
Single Layer

scholarly journals The Application of Polymer Inclusion Membranes Based on CTA with 1-alkylimidazole for the Separation of Zinc(II) and Manganese(II) Ions from Aqueous Solutions

Polymers ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 242 ◽  
Author(s):  
Elzbieta Radzyminska-Lenarcik ◽  
Malgorzata Ulewicz
Keyword(s):  
Transport Process ◽  
Polymer Membranes ◽  
Cellulose Triacetate ◽  
Force Microscopy ◽  
Analysis Techniques ◽  
Membrane Morphology ◽  
Atomic Force ◽  
Feed Phase ◽  
Thermal Analysis Techniques ◽  
Scanning Electron

Polymer cellulose triacetate membranes doped with 1-alkylimidazole as fixed carriers were applied for the investigation of the facilitated transport of Zn(II) and Mn(II) ions from an aqueous sulphate feed phase (cM = 0.001 mol/dm3). For the polymer inclusion membranes (PIMs) doped with 1-alkylimidazole (alkyl – from hexyl up to decyl), the following patterns of transport selectivity were found: Zn(II) > Mn(II). The highest initial flux of Zn(II) ions (2.65 µmol/m2·s) was found for PIMs doped with 1-decyl-imidazole, whereas the best Zn(II)/Mn(II) selectivity coefficients equal to 19.7 were found for 1-hexyl-imidazole. Permeability coefficients for Zn(II) and Mn(II) ions transported across PIMs increase with an increase in the pKa values of 1-alkylimidazole. The polymer membranes of cellulose triacetate-o-NPPE with 1-alkylimidazole were characterised by scanning electron microscopy, non-contact atomic force microscopy and thermal analysis techniques. The influence of membrane morphology on the Zn(II) and Mn(II) transport process was discussed.

scholarly journals Bioinspired polymer vesicles and membranes for biological and medical applications

2016 ◽  
Vol 45 (2) ◽  
pp. 377-411 ◽  
Author(s):  
Cornelia G. Palivan ◽  
Roland Goers ◽  
Adrian Najer ◽  
Xiaoyan Zhang ◽  
Anja Car ◽  
...  
Keyword(s):  
Essential Role ◽  
Polymer Membranes ◽  
Synthetic Polymer ◽  
Biological Molecules ◽  
Medical Applications ◽  
Effective Strategy ◽  
Selective Transport ◽  
Polymer Vesicles ◽  
Living Organisms ◽  
Biological And Medical Applications

Biological membranes play an essential role in living organisms by providing stable and functional compartments, supporting signalling and selective transport. Combining synthetic polymer membranes with biological molecules promises to be an effective strategy to mimic the functions of cell membranes and apply them in artificial systems.

scholarly journals Selective recovery of cobalt(II) towards lithium(I) from chloride media by transport across polymer inclusion membrane with triisooctylamine

2014 ◽  
Vol 16 (1) ◽  
pp. 15-20 ◽  
Author(s):  
Beata Pospiech
Keyword(s):  
Cellulose Triacetate ◽  
Deionized Water ◽  
Inclusion Membrane ◽  
Chloride Solutions ◽  
Selective Recovery ◽  
Polymer Inclusion Membrane ◽  
Selective Transport ◽  
Nitrophenyl Octyl Ether ◽  
Aqueous Chloride ◽  
Source Phase

Abstract In this work the selective transport of cobalt(II) and lithium(I) ions from aqueous chloride solutions through polymer inclusion membranes (PIMs) is presented. Triisooctylamine (TIOA) has been applied as the ion carrier in membrane. The effects of various parameters on the transport of Co(II) and Li(I) were studied. The obtained results show that Co(II) ions were effectively removed from source phase through PIM containing 32 wt.% TIOA, 22 wt.% CTA (cellulose triacetate) and 46 wt.% ONPOE (o-nitrophenyl octyl ether) or ONPPE (o-nitrophenyl pentyl ether) into deionized water as the receiving phase. The results indicate that there is a possibility of polymer inclusion membranes application to recover Co(II) and Li(I) from aqueous chloride solutions

scholarly journals Application of Polymer Inclusion Membranes Doped with Alkylimidazole to Separation of Silver and Zinc Ions from Model Solutions and after Battery Leaching

Materials ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3103 ◽  
Author(s):  
Elzbieta Radzyminska-Lenarcik ◽  
Malgorzata Ulewicz ◽  
Ilona Pyszka
Keyword(s):  
Silver Oxide ◽  
Cellulose Triacetate ◽  
Water And Wastewater Treatment ◽  
Force Microscopy ◽  
Selective Transport ◽  
Atomic Force ◽  
Model Solutions ◽  
Leaching Solution ◽  
Water And Wastewater ◽  
Nitrate Solutions

New materials, such as polymer inclusion membranes, can be used for water and wastewater treatment. In this paper, the selective transport of silver(I) and zinc(II) ions from nitrate solutions through the polymer inclusion membranes (PIMs), which consist of cellulose triacetate as a polymeric support, o-nitrophenyl pentyl ether as a plasticizer, and either 1-hexylimidazole (1) or 1-hexyl-2-methylimidazole (2) as an ion carrier, is studied. Both Zn(II) and Ag(I) model solutions (CM = 0.001 M, pH = 6.5), as well as the solutions after the leaching of a spent battery with a silver–zinc cell (silver-oxide battery), are tested. The results show that Zn(II) ions are effectively transported through PIMs containing either carrier, whereas Ag(I) is more easily transported through PIMs doped with (1). In the case of the leaching solution after 24 h transport, the recovery coefficients of Ag(I) and Zn(II) for PIMs doped with (1) are 86% and 90%, respectively, and for PIMs doped with (2), 47% and 94%, respectively. The influence of basicity and structure of carrier molecules on transport kinetics is discussed as well. PIMs are characterized by using an atomic force microscopy (AFM) technique.

scholarly journals Selective Transport of Ag(I) through a Polymer Inclusion Membrane Containing a Calix[4]pyrrole Derivative from Nitrate Aqueous Solutions

2020 ◽  
Vol 21 (15) ◽  
pp. 5348
Author(s):  
Anna Nowik-Zajac ◽  
Iwona Zawierucha ◽  
Cezary Kozlowski
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Metal Ions ◽  
Aqueous Phase ◽  
Cellulose Triacetate ◽  
Inclusion Membrane ◽  
Selective Transport ◽  
Effective Transport ◽  
Different Temperatures ◽  
Nitrate Solutions

Cellulose-triacetate-based polymer inclusion membranes (PIMs) with different concentrations of a calixpyrrole ester derivative as the membrane carrier were studied to determine their ability to transport Ag(I) from aqueous nitrate solutions. The effects of the concentrations of ion carriers and metal ions, the pH of the source aqueous phase, and stripping agents on the effective transport of Ag(I) were assessed. All studied parameters were found to be important factors for the transport of Ag(I) metal ions. The initial fluxes were determined at different temperatures. The prepared membranes were found to be highly permeable. The selectivity of silver transport from an aqueous solution containing Ag(I), Cu(II), Pb(II), Cd(II), Ni(II), Zn(II), and Co(II) ions was also investigated.

scholarly journals Selective Transport of Silver(I) Ion Through Polymer Membranes Containing Thioether Donor Macrocycles as Carriers

2008 ◽  
Vol 5 (2) ◽  
pp. 271-274 ◽  
Author(s):  
A. Nezhadali ◽  
M. Akbarpour
Keyword(s):  
Aqueous Solution ◽  
Ion Transport ◽  
Sulfur Atom ◽  
Polymer Membranes ◽  
Polymer Membrane ◽  
Transport Rate ◽  
Transport Efficiency ◽  
Selective Transport ◽  
Source Phase ◽  
Better Than

The Preparation of polymer membrane and it's selectivity to silver(I) ion from an aqueous solution containing seven metal cations, Co(II), Ni(II), Cu(II), Zn(II), Ag(I), Cd(II) and Pb(II), was studied. The source phase contained equimolar concentrations of the above mentioned cations with the source and receiving phases being buffered at pH 5.0 and 3.0 respectively. The effect of variation in the number of the macrocyclic sulfur atom donor set anssd the size of ring 9 and 16 member macrocycles on transport efficiency is presented. Silver(I) ion transport occurred (at 25°C) from the aqueous source phase across the polymer membrane (derived from cellulos triacetate) containing ligands 9-membered, S3-donor and16-membered S4-donor macrocycles as the ionophors in separate experiments into the aqueous receiving phase. Clear transport selectivity for silver(I) ion was observed using both thioether donor macrocycles. The efficiency of transport rate for silver(I) ion with using 9-membered S3-donor macrocycle as carrier was better than 16-membered S4-donor .

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