A novel Cyphos IL 104-based polymer inclusion membrane (PIM) probe to mimic biofilm zinc accumulation

Anticó, Enriqueta; Fontàs, Cláudia; Vera, Ruben; Mostazo, G.; Salvadó, Victòria; Guasch, Helena

doi:10.1016/j.scitotenv.2020.136938

Cited by 17 publications

(4 citation statements)

References 21 publications

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“…[ 37 ] More importantly, PIMs are particularly interesting due to their higher stability compared to SLMs, which remain the most commonly used liquid membranes. [ 131 ] The poor stability of SLMs was caused by their carrier leakage. Despite the lack of covalent bonding between carriers and the polymeric backbone in a typical PIM, the membranes are essentially quasisolid homogeneous thin membranes and do not exhibit true liquid phase behavior, [ 9 ] leading many researchers to consider them solid membranes.…”

Section: Stability Of Pims and Comparison With Other Ion Selective Me...mentioning

confidence: 99%

Recent Advances in the Selective Transport and Recovery of Metal Ions using Polymer Inclusion Membranes

Wang,

2023

Adv Materials Technologies

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Polymer inclusion membranes (PIMs) have gained significant attention in the field of metal separation and recovery due to their high selectivity, long service life, high stability, flexible design and low cost. Over the past 10 years, interest around PIMs has increased considerably; hence, the number of research papers has grown exponentially. This review provides the preparation methods and composition of PIMs, presents an overview of studies on PIMs reported since 2012, and discusses the relationship between the physicochemical properties of different types of membrane components and the microstructure, selectivity, transport performance and stability of prepared PIMs. This review also elucidates the metal transport mechanism at the interface and interior of PIMs and summarizes the modification and separation intensification methods of PIMs. Additionally, the structure and stability of PIM relative to other liquid membranes are also discussed. Finally, the existing challenges and perspectives of PIMs in the field of metal separation and recovery are proposed and highlighted. Notably, the need for highly selective and low‐cost carriers, a deeper understanding of membrane microstructure and separation mechanisms, and strategies for promoting widespread adoption of polymer inclusion membrane‐electrodialysis technology deserve particular consideration, which are of guiding significance for accelerating the industrialization process of PIMs.

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Section: Stability Of Pims and Comparison With Other Ion Selective Me...mentioning

confidence: 99%

Recent Advances in the Selective Transport and Recovery of Metal Ions using Polymer Inclusion Membranes

Wang,

2023

Adv Materials Technologies

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“…The Osor River (41 • 57 14" N, 2 • 35 58" E), located in North-East Catalonia (Spain), is a small tributary of the Ter River. It was selected for this study because of its high Zn content due to past mining activity that has affected the river water composition [19]. The water sample was taken in a 1 L clean plastic bottle and transported under refrigeration to the laboratory.…”

Section: Sampling Site and Natural Water Experimentsmentioning

confidence: 99%

“…Motsoane et al developed a passive sampler for Cu, Ni, Co, and Cd in surface waters using a membrane made of 60% PVC and 40% D2EHPA using a 1.0 M HNO 3 solution as a receiving phase [18]. Similarly, a PIM made of 50% CTA, 20% NPOE, and 30% of the ionic liquid Cyphos 104 was investigated as a simple tool to monitor Zn in polluted river water [19]. The comparison of the metal measured by the PIM sensor and the metal accumulated by biofilm grown in the same water showed the suitability of the membrane to perform metal bioavailability studies.…”

Section: Introductionmentioning

confidence: 99%

A Polymer Inclusion Membrane for Sensing Metal Complexation in Natural Waters

2021

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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.

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“…The application of polymer-inclusion membranes (PIMs) as sensing components in ion-selective electrodes (IEs) and optodes [6][7][8] has generated great interest. PIMs have also been used for separation [9,10], preconcentration [11], and passive sampling [12,13], resulting in a functional, cheaper, and more environmentally friendly alternative methodology [14].…”

Section: Introductionmentioning

confidence: 99%

Sensing Cd(II) Using a Disposable Optical Sensor Based on a Schiff Base Immobilisation on a Polymer-Inclusion Membrane. Applications in Water and Art Paint Samples

et al. 2021

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A disposable colour-changeable optical sensor based on an interesting polymer inclusion-membrane (PIM) was designed to determine Cd(II) ions in aqueous medium. The Schiff base 2-acetylpyridine benzoylhydrazone (2-APBH) immobilised on the polymer membrane was used as a sensing molecule. The amounts of the PIM components were optimised by a 32 fractional factorial design with two central points and two blocks. The best optical sensor composition consisted of 2.5 g of poly(vinylchloride) (PVC) as a base polymer, 3 mL of tributyl phosphate (TBP) as a plasticiser, and 0.02 g of 2-APBH as a reagent. The sensor showed a good linear response in the range from 0.02 mg L−1 (limit of detection) to 1 mg L−1 of Cd(II) under the following experimental conditions: pH 9.5 (adjusted using ammonium chloride buffer solution at 0.337 mol L−1), 60 min of exposure time plus 2 min of sonication (pulses at 2 s intervals), and 10 min of short-term stability. The relative standard deviation of the method was determined to be 4.04% for 0.4 mg L−1 of Cd(II). The optical sensor was successfully applied to the determination of Cd(II) in natural-water and art-paint samples.

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A novel Cyphos IL 104-based polymer inclusion membrane (PIM) probe to mimic biofilm zinc accumulation

Cited by 17 publications

References 21 publications

Recent Advances in the Selective Transport and Recovery of Metal Ions using Polymer Inclusion Membranes

Recent Advances in the Selective Transport and Recovery of Metal Ions using Polymer Inclusion Membranes

A Polymer Inclusion Membrane for Sensing Metal Complexation in Natural Waters

Sensing Cd(II) Using a Disposable Optical Sensor Based on a Schiff Base Immobilisation on a Polymer-Inclusion Membrane. Applications in Water and Art Paint Samples

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