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Adsorptive membranes with filtration and adsorption functions are one of the best strategies to remove harmful cations from wastewater and drinking water. In view of adsorptive capacity and regeneration cost, the most promising application field of adsorption membrane is the production of drinking water at present. An overview is given about the research progress of adsorptive membranes for removing heavy metal ions from drinking water. The removal mechanism of adsorptive membranes is explained by a schematic representation of electrical double layer. The types of adsorptive membranes are summarized. Future research outlook regarding adsorptive membranes is also discussed in order to promote research and application in drinking water for adsorptive membranes. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48579.

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Novel organo-mineral membranes were prepared under an external orthogonal magnetic field from suspensions by the phase inversion process. The suspensions consist of polyacrylonitrile, dimethyl sulfoxide, poly-(vinylpyrrolidone), and ferrosoferric oxide.The cross-section structures observed by SEM show that the magnetic field can control the alignment orientation of magnetic Fe 3 O 4 aggregates in the membrane. Moreover, the addition of Fe 3 O 4 can lead to the change of macrovoids in the sublayer from being tidy and perpendicular to the membrane plane to being irregular and oblique to the membrane plane. The retention rate of PAN-Fe 3 O 4 membranes to BSA decreases with the increase of Fe 3 O 4 amount and the changes in the retention rate are within a range of 2%. Furthermore, 1 wt % Fe 3 O 4 added in PAN membranes may result in a decline of the membrane permeability or the antifouling performance. But the membrane permeability and the antifouling performance then increase with the increase of Fe 3 O 4 amount from 1 to 4 wt %. Contrary to common results, the membrane permeability and the antifouling performance appear to have no direct correlation to the roughness of membrane surface obtained by AFM.