Polymer inclusion membrane based on cellulose triacetate (CTA) plasticized with 2-nitrophenyl octyl ether

Polimery ◽  
2015 ◽  
Vol 60 (02) ◽  
pp. 118-125
Author(s):  
Jakub Rajewski ◽  
Paulina Lobodzin ◽  
Pawel Gierycz
Keyword(s):  
Cellulose Triacetate ◽  
Inclusion Membrane ◽  
Polymer Inclusion Membrane ◽  
Octyl Ether ◽  
Nitrophenyl Octyl Ether

scholarly journals Facilitated Transport of Copper(II) across Polymer Inclusion Membrane with Triazole Derivatives as Carrier

Membranes ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 201
Author(s):  
Bernadeta Gajda ◽  
Radosław Plackowski ◽  
Andrzej Skrzypczak ◽  
Mariusz B. Bogacki
Keyword(s):  
Ion Transport ◽  
Flow Rate ◽  
Alkyl Substituent ◽  
Cellulose Triacetate ◽  
Carbon Chain ◽  
Inclusion Membrane ◽  
Polymer Inclusion Membrane ◽  
Demineralized Water ◽  
Nitrophenyl Octyl Ether ◽  
Membrane Changes

This study investigates copper(II) ion transport through a polymer inclusion membrane (PIM) containing 1-alkyl-1,2,4-triazole (n = 8, 9, 10, 11, 12, 14), o-nitrophenyl octyl ether as the plasticizer and cellulose triacetate as the polymer matrix. The feeding phase was a solution of 0.1 mol/dm3CuCl2 and an equimolar (0.1 mol/dm3) mixture of copper, nickel, and cobalt chlorides with varying concentrations of chloride anions (from 0.5 to 5.0 mol/dm3) established with NaCl. The receiving phase was demineralized water. The flow rate of the source and receiving phases through the membrane module was within the range from 0.5 cm3/min to 4.5 cm3/min. The tests were carried out at temperatures of 20, 30, 40 and 50 °C. Transport of NaCl through the membrane was excluded for the duration of the test. It was noted that the flow rate through the membrane changes depending on the length of the carbon chain in the alkyl substituent from 16.1 μmol/(m2s) to 1.59 μmol/(m2s) in the following order: C8> C9> C10> C11> C12> C14. The activation energy was 71.3 ± 3.0 kJ/mol, indicating ion transport through the PIM controlled with a chemical reaction. Results for transport in case of the concurrent separation of copper(II), nickel(II), and cobalt(II) indicate a possibility to separate them in a selective manner.

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 An Efficient Polymer Inclusion Membrane-Based Device for Cd Monitoring in Seawater

Membranes ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. 61 ◽  
Author(s):  
Ibrahim Ait Khaldoun ◽  
Lynda Mitiche ◽  
Amar Sahmoune ◽  
Clàudia Fontàs
Keyword(s):  
High Salinity ◽  
Cellulose Triacetate ◽  
Special Device ◽  
Ultrapure Water ◽  
Hno3 Solution ◽  
Inclusion Membrane ◽  
Polymer Inclusion Membrane ◽  
Nitrophenyl Octyl Ether ◽  
Seawater Samples ◽  
First Time

A novel and simple device that includes a polymer inclusion membrane (PIM) has been prepared and tested for the first time to detect low concentration levels of cadmium in seawater. The ionic liquid trihexyl (tetradecyl) phosphonium chloride (THTDPCl) has been shown to be an effective extractant when incorporated in a PIM that uses cellulose triacetate (CTA) as a polymer. However, it has been reported that the use of a plasticizer is mandatory to ensure an effective transport, which uses both ultrapure water and a nitric acid solution as a stripping phase. A special device incorporating a PIM made of 50% CTA, 40% nitrophenyl octyl ether (as a plasticizer), and 10% THTDPCl, effectively allows the quantitative transport and preconcentration of 10 µg L−1 Cd from seawater samples to a stripping phase consisting of 0.5 M HNO3 solution. This study shows that the efficiency of the PIM system is not affected by high salinity nor the presence of large amounts of other ions, and can thus facilitate Cd monitoring in seawater samples.

scholarly journals Application of Plasticized Cellulose Triacetate Membranes for Recovery and Separation of Cerium(III) and Lanthanum(III)

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Beata Pospiech ◽  
Adam Makowka
Keyword(s):  
Metal Ions ◽  
Phosphinic Acid ◽  
Cellulose Triacetate ◽  
Inclusion Membrane ◽  
Polymer Inclusion Membrane ◽  
Cyanex 272 ◽  
Dithiophosphinic Acid ◽  
Cyanex 301 ◽  
Source Phase

Abstract This work explains the application of plasticized cellulose triacetate (CTA) membranes with Cyanex 272 di(2,4,4-(trimethylpentyl)phosphinic acid) and Cyanex 301 (di(2,4,4-trimethylpentyl)dithiophosphinic acid) as the ion carriers of lanthanum(III) and cerium(III). CTA is used as a support for the preparation of polymer inclusion membrane (PIM). This membrane separates the aqueous source phase containing metal ions and the receiving phase. 1M H2SO4 is applied as the receiving phase in this process. The separation properties of the plasticized membranes with Cyanex 272 and Cyanex 301 are compared. The results show that the transport of cerium(III) through PIM with Cyanex 272 is more efficient and selective than lanthanum(III).

scholarly journals A Polymer Inclusion Membrane for Sensing Metal Complexation in Natural Waters

2021 ◽  
Vol 11 (21) ◽  
pp. 10404
Author(s):  
Berta Alcalde ◽  
Enriqueta Anticó ◽  
Clàudia Fontàs
Keyword(s):  
Natural Waters ◽  
Ethylenediaminetetraacetic Acid ◽  
Major Ions ◽  
Metal Speciation ◽  
Cellulose Triacetate ◽  
Metal Complexation ◽  
Metallic Ions ◽  
Inclusion Membrane ◽  
Polymer Inclusion Membrane ◽  
Free Metal

Metal speciation studies are of great importance in assessing metal bioavailability in aquatic environments. Functionalized membranes are a simple tool to perform metal chemical speciation. In this study, we have prepared and tested a polymer inclusion membrane (PIM) made of the polymer cellulose triacetate (CTA), the extractant di-(2-ethylhexyl) phosphoric acid (D2EHPA), and the plasticizer 2-nitrophenyloctyl ether (NPOE) as a sensor for Zn and Cu complexation studies. This PIM, incorporated in a device with an 0.01 M HNO3 receiving solution, is shown to effectively transport free metal ions, and it is demonstrated that the presence of ligands that form stable complexes with divalent metallic ions, such as ethylenediaminetetraacetic acid (EDTA) and humic acid (HA), greatly influences the accumulation of the metals in the receiving phase due to the increasing metal fraction complexed in the feed phase. Moreover, the effect of major ions found in natural waters has been investigated, and it is found that the presence of calcium did not decrease the accumulation of either Zn or Cu. Finally, the PIM sensor has been used successfully to evaluate metal complexation in a river water affected by Zn pollution.

Preparation and characterization of cellulose triacetate polymer inclusion membrane blended with acetylated kraft lignin: effect of AKL

2018 ◽  
Vol 104 ◽  
pp. 263-272 ◽  
Author(s):  
Sana Ncib ◽  
Afef Barhoumi ◽  
Wided Bouguerra ◽  
Christian Larchet ◽  
Lasâad Dammak ◽  
...  
Keyword(s):  
Cellulose Triacetate ◽  
Kraft Lignin ◽  
Inclusion Membrane ◽  
Polymer Inclusion Membrane

scholarly journals The Use of a Polymer Inclusion Membrane for Arsenate Determination in Groundwater

Water ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 1093 ◽  
Author(s):  
Ruben Vera ◽  
Enriqueta Anticó ◽  
Clàudia Fontàs
Keyword(s):  
Colorimetric Method ◽  
Cellulose Triacetate ◽  
Physical Parameters ◽  
Aliquat 336 ◽  
Inclusion Membrane ◽  
Polymer Inclusion Membrane ◽  
Membrane Performance ◽  
Naturally Occurring ◽  
Groundwater Samples ◽  
Major Anions

A polymer inclusion membrane (PIM) containing the ionic liquid methyltrioctylammonium chloride (Aliquat 336) as the carrier has been used satisfactorily for the preconcentration of arsenate present in groundwater samples, allowing its determination by a simple colorimetric method. The optimization of different chemical and physical parameters affecting the membrane performance allowed its applicability to be broadened. The transport of As(V) was not affected by the polymer used to make the PIM (cellulose triacetate (CTA) or poly(vinyl chloride) (PVC)) nor the thickness of the membrane. Moreover, the use of a 2 M NaCl solution as a stripping phase was found to allow the effective transport of arsenate despite the presence of other major anions in groundwater. Using the PIM for the analysis of different groundwaters spiked at 100 μg L−1 resulted in recoveries from 79% to 124% after only 5 h of contact time. Finally, the validated PIM-based method was successfully applied to the analysis of waters containing naturally occurring arsenate.

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