Amine-Decorated Methacrylic Acid-based Inverse Vulcanized Polysulfide for Effective Mercury Removal from Wastewater

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dc.contributor.authorGhumman, A.S.M.
dc.contributor.authorShamsuddin, R.
dc.contributor.authorAlothman, Z.A.
dc.contributor.authorWaheed, A.
dc.contributor.authorAljuwayid, A.M.
dc.contributor.authorSabir, R.
dc.contributor.authorAbbasi, A.
dc.contributor.authorSami, A.
dc.date.issued2024
dc.descriptionPublished: January 17, 2024
dc.description.abstractMercury [Hg(II)] contamination is an indefatigable global hazard that causes severe permanent damage to human health. Extensive research has been carried out to produce mercury adsorbents; however, they still face certain challenges, limiting their upscaling. Herein, we report the synthesis of a novel amineimpregnated inverse vulcanized copolymer for effective mercury removal. Poly(S-MA) was prepared using sulfur and methacrylic acid employing the inverse vulcanization method, followed by functionalization. The polyethylenimine (PEI) was impregnated on poly(S-MA) to increase the adsorption active sites. The adsorbent was then characterized byusing Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). FTIR spectroscopy confirmed the formation of the copolymer, and successful impregnation of PEI and SEM revealed the composite porous morphology of the copolymer. Amine-impregnated copolymer [amine@poly(S-MA)] outperformed poly(S-MA) in mercury as it showed 20% superior performance with 44.7 mg/g of mercury adsorption capacity. The adsorption data best fit the pseudo-second-order, indicating that chemisorption is the most effective mechanism, in this case, indicating the involvement of NH2 in mercury removal. The adsorption is mainly a monolayer on a homogeneous surface as indicated by the 0.76 value of Redlich-Peterson exponent (g), which describes the adsorption nature advent from the R2 value of 0.99.
dc.description.statementofresponsibilityAli Shaan Manzoor Ghumman, Rashid Shamsuddin, Zeid A. Alothman, Ammara Waheed, Ahmed M. Aljuwayid, Rabia Sabir, Amin Abbasi, and Abdul Sami
dc.identifier.citationACS Omega, 2024; 9(4):4831-4840
dc.identifier.doi10.1021/acsomega.3c08361
dc.identifier.issn2470-1343
dc.identifier.issn2470-1343
dc.identifier.orcidWaheed, A. [0000-0002-2844-5103]
dc.identifier.orcidSabir, R. [0000-0003-4891-3020]
dc.identifier.urihttps://hdl.handle.net/2440/144499
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.rights© 2024 The Authors. Published by American Chemical Society. This article is licensed under CC-BY-NC-ND 4.0
dc.source.urihttp://dx.doi.org/10.1021/acsomega.3c08361
dc.titleAmine-Decorated Methacrylic Acid-based Inverse Vulcanized Polysulfide for Effective Mercury Removal from Wastewater
dc.typeJournal article
pubs.publication-statusPublished

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