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2006•Journal of Filtration & SeparationRequires access

Preparation and Characteristics of Sodium-Ion-Recognition Membranes

Yang Wen

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Abstract

A kind of sodium-ion-recognition membrane was prepared by a sol-gel method using 15-crown-5 and polyethersulfone (PES). The microstructure and the chemical composition of the prepared membranes were characterized by SEM and FT-IR. Filtration experiments were carried out to investigate the flux and rejection of sodium ions. The results indicated that 15-crown-5/PES membranes had a satisfactory flux, and could recognize and reject sodium ions; on the other hand, the membranes could not remove calcium ions. The results in this study provided some valuable guidance for the design and preparation of sodium-ion-recognition membranes.

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What this paper is about

A kind of sodium-ion-recognition membrane was prepared by a sol-gel method using 15-crown-5 and polyethersulfone (PES). The microstructure and the chemical composition of the prepared membranes were characterized by SEM and FT-IR. Filtration experiments were carried out to investigate the flux and rejection of sodium ions. The results indicated that 15-crown-5/PES membranes had a satisfactory flux, and could recognize and reject sodium ions; on the other hand, the membranes could not remove calcium ions. The results in this study provided some valuable guidance for the design and preparation of sodium-ion-recognition membranes.

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Available abstract

A kind of sodium-ion-recognition membrane was prepared by a sol-gel method using 15-crown-5 and polyethersulfone (PES). The microstructure and the chemical composition of the prepared membranes were characterized by SEM and FT-IR. Filtration experiments were carried out to investigate the flux and rejection of sodium ions. The results indicated that 15-crown-5/PES membranes had a satisfactory flux, and could recognize and reject sodium ions; on the other hand, the membranes could not remove calcium ions. The results in this study provided some valuable guidance for the design and preparation of sodium-ion-recognition membranes.

Key concepts: Membrane, Sodium, Ion, Chemistry, Filtration (mathematics), Chemical engineering, Calcium, Chromatography

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