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Replacement of the bulky Rb<jats:sup>+<\/jats:sup> by smaller Na<jats:sup>+<\/jats:sup> ions was accomplished by stabilizing the framework structure via partial occupancy of the Nb<jats:sup>5+<\/jats:sup> sites by Fe<jats:sup>3+<\/jats:sup> ions. Exploratory ion\u2010exchange assays evidence the considerable potential of this new silicate to remove rare\u2010earth elements from aqueous solutions.<\/jats:p>","DOI":"10.1002\/chem.202202435","type":"journal-article","created":{"date-parts":[[2022,9,26]],"date-time":"2022-09-26T22:23:17Z","timestamp":1664230997000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Microporous Framework (Nb, Fe)\u2010Silicate with Much Potential to Remove Rare\u2010Earth Elements from Waters"],"prefix":"10.1002","volume":"28","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5984-7228","authenticated-orcid":false,"given":"Zhi","family":"Lin","sequence":"first","affiliation":[{"name":"Department of Chemistry CICECO - Aveiro Institute of Materials University of Aveiro  3810-193 Aveiro Portugal"}]},{"given":"Daniela","family":"Tavares","sequence":"additional","affiliation":[{"name":"Department of Chemistry LAQV-REQUIMTE - Associated Laboratory for Green Chemistry University of Aveiro  3810-193 Aveiro Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6046-5243","authenticated-orcid":false,"given":"Eduarda","family":"Pereira","sequence":"additional","affiliation":[{"name":"Department of Chemistry LAQV-REQUIMTE - Associated Laboratory for Green Chemistry University of Aveiro  3810-193 Aveiro Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0417-9402","authenticated-orcid":false,"given":"Jo\u00e3o","family":"Rocha","sequence":"additional","affiliation":[{"name":"Department of Chemistry CICECO - Aveiro Institute of Materials University of Aveiro  3810-193 Aveiro Portugal"}]}],"member":"311","published-online":{"date-parts":[[2022,10,28]]},"reference":[{"key":"e_1_2_9_1_1","doi-asserted-by":"crossref","unstructured":"J. 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