Copper-substituted polyoxometalate-soldered interpenetrating polymeric networks membranes for water remediation

Sen Gupta, R and Mandal, S and Arya, S and Dutta, S and Manna, K and Safikul Islam, S and Pathan, S and Bose, S (2023) Copper-substituted polyoxometalate-soldered interpenetrating polymeric networks membranes for water remediation. In: Chemical Engineering Journal, 461 .

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Abstract

Attributing water remediation membranes with antifouling properties continues to be a significant research focus. Herein we have fabricated a Copper-substituted polyoxometalate (Cu-POM) mixed matrix sequential interpenetrating polymeric network membrane via integrating engineering aspects of IPNs and in-situ electrostatic attachment. The incorporation of Cu-POMs endowed the IPN membranes with exceptional and unique surface morphology. The inclusions enhanced the surface roughness, pore structure, and hydrophilic nature of the membranes. Superior antifouling characteristics and charge-carrying capacity were typical characteristics of the designed membranes. The membranes were characterized thoroughly via multiple spectroscopic and microscopic techniques apart from Zeta potential, water contact angle, TGA, and XRD. Over several and repeated operational cycles, the membranes were found to exhibit stable performance in terms of salt rejection (ca. 98 ), dye removal (>97 for both cationic and anionic dyes), and antibiotic removal performance (>96 ). Despite their reuse, the membranes maintained their inherent antifouling and chlorine-tolerant behavior. The synthesized electrostatically tagged in-situ decorated Cu-POM-based IPN (Cu-POM @IPN) membranes were pliable and mechanically robust. They could potentially be emerging prospective candidates for efficient and expeditious water remediation. © 2023 Elsevier B.V.

Item Type:	Journal Article
Publication:	Chemical Engineering Journal
Publisher:	Elsevier B.V.
Additional Information:	The copyright for this article belongs to Elsevier B.V.
Keywords:	Contact angle; Membranes; Morphology; Oxides; Pore structure; Salt removal; Stripping (dyes); Surface morphology; Surface roughness, Anti-foulings; Antifouling property; Copper-substituted polyoxometalate mixed matrix; Dye removal; Interpenetrating polymeric network; IPN membrane; Mixed matrix; Polyoxometalates; Salt rejections; Water remediation, Copper
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	16 Mar 2023 06:22
Last Modified:	16 Mar 2023 06:22
URI:	https://eprints.iisc.ac.in/id/eprint/80970

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