Simultaneous selective separation of silver (I) and lead (II) ions from a single dilute source solution through two supported liquid membranes composed of selective crown ethers in supra molecular solvent

Recovery of Brine Resources Through Crown-Passivated Graphene, Silicene, and Boron Nitride Nanosheets Based on Machine-Learning Structural Predictions

“…The use of crown ethers (CEs) for the host–guest selective binding and recovery of metal ions in various media has continued to evolve over the years. − The unique structure of the CEs often drives their complexation with the metal ions, leading to strong ion–dipole interactions. The strength and stability of the complexes depends on the crown pore size, the size and charge of the metal ions and the nature of the solvating medium. , With the emergence of the nanopore technology, single-ion channels of CEs have been created on several two-dimensional (2D) materials for various applications ranging from the recovery of metal ions in aqueous media − to energy storage applications. , The incorporation of the CEs afforded the creation of hybrid 2D-CE materials, which retain both the unique features of the 2D materials such as high carrier mobility and high surface area and the charge polarization within the crown cavities for the selective recovery of various ions.…”

Rational Design of a 3D Crown‐Based Material for the Selective Recovery of Silver Ions from Seawater and e‐Waste

“…[ 8 ] reported the catch‐release fluorescent dosing and recycling of silver ions on an anthracene‐appended CE and demonstrated the practical utilization of such systems in molecular communication. Falaki and co‐workers [ 9 ] reported the selective recovery of silver and lead ions from single‐stream solutions on supported liquid membranes loaded with 18‐crown‐6 materials. The extraction of silver, cesium, strontium, and other metal ions in fluorinated diluents containing CEs was reported by Smirnov et al.…”

“…Paul et al [8] reported the catch-release fluorescent dosing and recycling of silver ions on an anthraceneappended CE and demonstrated the practical utilization of such systems in molecular communication. Falaki and co-workers [9] reported the selective recovery of silver and lead ions from singlestream solutions on supported liquid membranes loaded with 18-crown-6 materials. The extraction of silver, cesium, strontium, and other metal ions in fluorinated diluents containing CEs was reported by Smirnov et al [10] Fissaha and co-workers [11] demonstrated the recovery of silver ions on hydroxylated thio-CEs with various cavity sizes and achieved excellent uptake of 124 -179 mg g −1 within 24 h. While the thia-CEs have achieved remarkable results, their complex synthesis protocol and the time required to achieve maximum uptake make them impractical for real analysis where abundant competing ions co-exist.…”

A simulation study of an electro-membrane extraction for enhancement of the ion transport via tailoring the electrostatic properties

“…Zaheri et al 31 recovered europium metal by carbon nanotubes and acid carriers (Cyanx 272) in the SLM system and investigated the effect of feed pH on separation quality. Bhatluri et al 32 investigated the removal of cadmium and lead from an aqueous feed by coconut oil as the solvent and Aliquate 336 as the carrier. By increasing EDTA to the receiving phase, they increased the mass transfer flux 33 .…”