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    Membrane technology—a promising approach for metal ion extraction
    (Elsevier, 2024) Antony, N.; Vijesh, A.M.; Isloor, A.M.
    Metal ion extraction using ion exchange membranes (IEM) receives much attention as it can find a solution to environmental problems to reduce emissions of heavy metals from wastewater contaminated with industrial effluents. Among the various IEM available, cation exchange membranes are widely used by researchers due to its enhanced ability to hold the metal ion and retain them in the organic phase. This review book chapter emphasizes the extraction of metal ions, specifically about the studies carried out in the field of iron, zinc, and copper metal ions using IEM. © 2024 Elsevier Inc. All rights reserved.
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    Advances of membrane technology in wastewater treatment
    (Elsevier, 2024) Deepthi, P.V.; Viji, K.; Vijesh, A.M.; Isloor, A.M.; Kumar, V.
    Pure water scarcity is becoming a real threat to the modern world. Rapid growth in the textile, paper, and printing industries has caused the production of large quantities of dye effluents, and they must be treated before passing to the water bodies or lands to minimize pollution and environmental impacts. Polymeric membrane-based filtration has been established as an optimal and greener approach for removing hazardous dyes from polluted water. Superior thermal, chemical, and mechanical properties and convenient modifiability made polysulfone (PSF), polyethersulfone (PES), and polyphenylsulfone (PPSU) ideal for the production of membranes for the treatment of dye effluents from industries. This chapter emphasizes the recent developments in modified PSF, PES, and PPSU membranes and their dye rejection properties. © 2025 Elsevier Inc. All rights reserved.
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    Nonporous polymeric membranes for biohydrogen purification
    (Elsevier, 2025) Mendonca, N.R.; Isloor, A.M.; A.F., A.F.
    Biohydrogen generated from biomass is a clean form of hydrogen. The dark fermentation process for the generation of biohydrogen gives a mixture of H2 and CO2 from which biohydrogen needs to be purified. From the available methods for biohydrogen purification, membrane technology is the most viable since it is less energy-intensive and can be combined easily with other processes. Both polymeric as well as inorganic membranes are employed in gas separation processes. Of these, nonporous polymeric membranes are economically viable and are hence used in large-scale gas separations. The use of nonporous polymeric membranes, composed of polymers like polybenzimidazole, polyimide, and polysulfone, for biohydrogen purification is an ongoing area of research which can help to generate hydrogen for use in hydrogen fuel cells, hence reducing the dependence on fossil fuels which pollute the environment. © 2026 Elsevier Inc. All rights reserved.