{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,11]],"date-time":"2026-08-11T05:28:34Z","timestamp":1786426114909,"version":"build-2736575974"},"reference-count":72,"publisher":"MDPI AG","issue":"16","license":[{"start":{"date-parts":[[2026,8,8]],"date-time":"2026-08-08T00:00:00Z","timestamp":1786147200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Ministry of Science and Higher Education of the Republic of Kazakhstan","award":["AP23489278."],"award-info":[{"award-number":["AP23489278."]}]},{"award":["AP23489278."],"award-info":[{"award-number":["AP23489278."]}],"id":[{"id":"https:\/\/ror.org\/05tyne317","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>Isolating rhenium and molybdenum selectively from multicomponent acidic hydrometallurgical solutions remains problematic because of the abundance of competing cations and the low concentration of target oxoanions. This study investigates the sorption of Re(VII) and Mo(VI) oxoanions by an interpolymer system (IPS) comprising a cellulose\u2013polyethyleneimine\u2013glutaraldehyde (Cellulose-PEI-GA) weak-base anion exchanger and a sulfonated styrene\u2013divinylbenzene cation-exchange resin (Lewatit MonoPlus SP112H), operating as spatially separated but solution-coupled phases. The industrial feed, a sulfuric acid leach liquor from electrostatic precipitator dust at the Zhezkazgan copper smelter, Kazakhstan (pH 1.25), was pretreated by liquid\u2013liquid extraction with a trialkylamine-2-ethylhexanol\u2013kerosene system followed by ammonia stripping to give an alkaline re-extract (pH 11.98) used for sorption. At the optimal 1:1 mass ratio of the two components (3:3), the IPS achieved a rhenium recovery of 77.7% (Kd = 3678 mL g\u22121, q = 4.51 mg g\u22121) against a markedly lower molybdenum recovery of 24.0% (Kd = 333 mL g\u22121), giving a Re\/Mo separation factor \u03b2 of 8.8\u201315.5 across the studied compositions; this uptake exceeded the value predicted from the individual sorbents by a factor of ~2.6, indicating a cooperative rather than purely additive effect. Sorption kinetics (pseudo-first-order, pseudo-second-order and Elovich models) and diffusion mechanisms (Weber\u2013Morris and Boyd models) were consistent with mixed film- and intraparticle-diffusion control. Desorption with hydrochloric acid recovered 91.4% of the sorbed rhenium and 89.1% of the molybdenum, and FTIR, TGA, and BET analyses (surface area increasing from 1.93 to 8.62 m2 g\u22121 for the cellulose component and from 7.21 to 8.46 m2 g\u22121 for the resin) confirmed sorbate-induced textural and compositional changes consistent with the proposed complementary anion-\/cation-exchange mechanism.<\/jats:p>","DOI":"10.3390\/polym18161943","type":"journal-article","created":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T01:20:03Z","timestamp":1786324803000},"page":"1943","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Selective Sorption of Rhenium and Molybdenum Oxoanions Using an Interpolymer System Based on Functionalized Cellulose and Lewatit Monoplus SP112H in Acidic Aqueous Media"],"prefix":"10.3390","volume":"18","author":[{"given":"Dametken","family":"Fischer","sequence":"first","affiliation":[{"name":"Institute of Metallurgy and Ore Beneficiation JSC, Satbayev University, Shevchenko Str., 29\/133, Almaty 050010, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8044-4186","authenticated-orcid":false,"given":"Sultan","family":"Yulusov","sequence":"additional","affiliation":[{"name":"Institute of Metallurgy and Ore Beneficiation JSC, Satbayev University, Shevchenko Str., 29\/133, Almaty 050010, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arman","family":"Baishibekov","sequence":"additional","affiliation":[{"name":"Institute of Metallurgy and Ore Beneficiation JSC, Satbayev University, Shevchenko Str., 29\/133, Almaty 050010, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Talkybek","family":"Jumadilov","sequence":"additional","affiliation":[{"name":"A.B. Bekturov Institute of Chemical Sciences JSC, Satbayev University, Sh. Ualikhanov Str., 106, Almaty 050010, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6377-7050","authenticated-orcid":false,"given":"J\u00f3zef","family":"Haponiuk","sequence":"additional","affiliation":[{"name":"Polymer Technology Department, Faculty of Chemistry, Gda\u0144sk University, 11\/12 Gabriela Narutowicza Street, 80-233 Gda\u0144sk, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Saniya","family":"Temirova","sequence":"additional","affiliation":[{"name":"Institute of Metallurgy and Ore Beneficiation JSC, Satbayev University, Shevchenko Str., 29\/133, Almaty 050010, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7405-6854","authenticated-orcid":false,"given":"Bagdat","family":"Altaibayev","sequence":"additional","affiliation":[{"name":"Institute of Metallurgy and Ore Beneficiation JSC, Satbayev University, Shevchenko Str., 29\/133, Almaty 050010, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tatiana","family":"Surkova","sequence":"additional","affiliation":[{"name":"Institute of Metallurgy and Ore Beneficiation JSC, Satbayev University, Shevchenko Str., 29\/133, Almaty 050010, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9659-8152","authenticated-orcid":false,"given":"Axaule","family":"Mamaeva","sequence":"additional","affiliation":[{"name":"Institute of Metallurgy and Ore Beneficiation JSC, Satbayev University, Shevchenko Str., 29\/133, Almaty 050010, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kenzhegali","family":"Smailov","sequence":"additional","affiliation":[{"name":"Institute of Metallurgy and Ore Beneficiation JSC, Satbayev University, Shevchenko Str., 29\/133, Almaty 050010, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,8,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"9769","DOI":"10.1021\/acs.est.0c01666","article-title":"Exploring the Mechanisms of Selectivity for Environmentally Significant Oxo-Anion Removal during Water Treatment: A Review of Common Competing Oxo-Anions and Tools for Quantifying Selective Adsorption","volume":"54","author":"Pincus","year":"2020","journal-title":"Environ. 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