Ion Exchange Membrane (IEM) are thin, semipermeable sheets or films that are used in water treatment facilities to separate cations and inions from fluids. Ionic material can be separated from the fluid flow, concentrated, and excluded thanks to ionic species. The membranes are frequently offered in variations that are partially halogenated, hydrocarbon, perfluorocarbon, inorganic, composite, and chlor-alkali.
They move ions from one solution to another with little water passage in desalination and chemical recovery applications. Additionally, ion exchange membranes are being employed more frequently in water treatment plants due to their great energy efficiency and low maintenance requirements. Ion Exchange Membrane used for desalination, electrolysis, hydrogen synthesis, and water purification. Demand for high-performance, compact membranes is rising as these applications for these membranes are used more frequently. High ion exchange capacity: Ion exchange membranes have a high density of charged functional groups, which allows for efficient ion exchange. Chemical stability: Ion exchange membranes are resistant to chemical degradation and can withstand exposure to acids, bases, and organic solvents. Mechanical strength: Ion exchange membranes are mechanically strong and can withstand high pressures and temperatures. Thermal stability: Ion Exchange Membrane can withstand high temperatures without significant degradation or loss of functionality. Ion exchange membranes can be classified based on their structure, composition, and application. The most common types of ion exchange membranes include: Cation exchange membranes (CEMs): Cation exchange membranes are characterized by their ability to selectively transport cations while blocking anions. These membranes contain negatively charged functional groups, such as sulfonic acid or carboxylic acid groups. Anion exchange membranes (AEMs): Anion exchange membranes are characterized by their ability to selectively transport anions while blocking cations. These membranes contain positively charged functional groups, such as quaternary ammonium or tertiary amine groups. Bipolar membranes (BPMs): Bipolar membranes are composed of a cation exchange membrane and an anion exchange membrane, which are separated by a thin layer of water. When a voltage is applied across the bipolar membrane, the cations and anions in the electrolyte solution are split into hydrogen ions and hydroxide ions, respectively
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