An efficient cobalt separation using PVDF-co-HFP based ultrafiltration polymer inclusion membrane by room temperature ionic liquids

Eyüpoğlu, Volkan; Unal, Asuman; Polat, Emrah; Eren, Beytullah; Kumbasar, Recep Ali

doi:10.1016/j.seppur.2022.122201

Cited by 12 publications

(4 citation statements)

References 38 publications

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“…Recently, the high-efficiency recovery of Co (II) ions was realized by PVDF-HPF-based PIMs with RTIL4 as the carrier and 2-NPOE as the plasticizer. [48] SEM, AFM and contact angle analyses indicate that RTILs with longer alkyl chains result in the formation of micro hills on the PIM surface and a more hydrophilic membrane surface. The PIM surface exhibits an increase in wrinkle-, hill-, and pittype structures after Co (II) transport, which can be attributed to the formation of the Co (SCN) n 2−n -RTIL complex and its layerby-layer transportation across the PIM.…”

Section: Cobalt and Nickel Transportmentioning

confidence: 97%

“…The influence of plasticizers on the transport performance and physiochemical properties of PIMs is particularly prominent. [ 48 ] As an organic compound, plasticizers consist of a hydrophobic alkyl backbone that contains one or more extremely solvating polar groups. Plasticizers can infiltrate the polymer chains and counteract the polar groups of the base polymer with their own polar groups, thereby enhancing the stiffness of the membrane structure and increasing the PIM flexibility and metal ion flux.…”

Section: Preparation and Composition Of Pimsmentioning

confidence: 99%

“…Recently, the high‐efficiency recovery of Co (II) ions was realized by PVDF‐HPF‐based PIMs with RTIL4 as the carrier and 2‐NPOE as the plasticizer. [ 48 ]…”

Section: Application Of Pims In Metal Separationmentioning

confidence: 99%

“…Currently, PIMs have been widely applied in the selective separation of various metals, including heavy metals, rare earth metals, platinum group metals, etc., as summarized in Tables 1-4. [48,106] Some of these metals will be discussed in detail further in this section. With the rapid development of lithiumion batteries, metal plating, metal mining, tanneries and other industries, the treatment and recovery of wastewater containing heavy and valuable metals has become a focus.…”

Section: Application Of Pims In Metal Separationmentioning

confidence: 99%

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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: Cobalt and Nickel Transportmentioning

confidence: 97%

Section: Preparation and Composition Of Pimsmentioning

confidence: 99%

“…Recently, the high‐efficiency recovery of Co (II) ions was realized by PVDF‐HPF‐based PIMs with RTIL4 as the carrier and 2‐NPOE as the plasticizer. [ 48 ]…”

Section: Application Of Pims In Metal Separationmentioning

confidence: 99%

Section: Application Of Pims In Metal Separationmentioning

confidence: 99%

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

Wang,

2023

Adv Materials Technologies

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Investigation of PVDF‐co‐HPF based ultrafiltration polymer inclusion membrane for the extraction of cadmium ions

Eyupoglu,

Unal

2024

J of Applied Polymer Sci

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Ultrafiltration polymer inclusion membranes (UPIMs) have become increasingly significant for the separation and purification of heavy metals from industrial wastes and wastewater due to their convenience compared to other liquid membranes. A novel process for cadmium separation and recovery has been developed using biodegradable ion carriers, specifically room temperature ionic liquids with various molecular structures. This innovation has greatly enhanced the efficiency and application of UPIMs for cadmium separation, while also providing the membranes with unique functional properties. In this study, various UPIMs were produced using polyvinyl fluoride hexafluoropropylene (PVDF‐co‐HPF) as the base polymer, different plasticizers, and symmetric room temperature ionic liquids as ion carriers. The ability of these membranes to extract cadmium ions was evaluated, demonstrating a removal rate of 9.70 μmol s−1 from a 25 ppm Cd(II) solution under optimum conditions. The selectivity and stability of the optimized UPIM were examined under different conditions to obtain a deeper insight into of its performance. The morphological characteristics of the optimized UPIM were examined using scanning electron microscopy and atomic force microscopy techniques.

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Extraction and recycling technologies of cobalt from primary and secondary resources: A comprehensive review

Huang,

Chen,

Shu

et al. 2024

Int J Miner Metall Mater

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An efficient cobalt separation using PVDF-co-HFP based ultrafiltration polymer inclusion membrane by room temperature ionic liquids

Cited by 12 publications

References 38 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

Investigation of PVDF‐co‐HPF based ultrafiltration polymer inclusion membrane for the extraction of cadmium ions

Extraction and recycling technologies of cobalt from primary and secondary resources: A comprehensive review

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