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The obtained results reveal the formation of a unique amorphic layer of Fe-based compounds on the surface of silica walls of SBA-15 channels as a result of the organic groups\u2019 decomposition after moderate thermal treatment. Due to their unique structure, represented in an active Fe-containing amorphous coating spread over a large surface area, these materials are of great interest for their potential applications in fields such as catalysis, adsorption, and non-linear optics. The obtained materials remain amorphous, preserving the SBA-15 mesoporous structure up to temperatures of approximately 800 \u00b0C, after which the partial melting of the silica backbone is observed with the simultaneous formation of nanocrystals inside the newly-formed glassy mass. All obtained materials were characterized using such techniques as thermogravimetry, transmission and scanning electron microscopy combined with energy dispersive x-ray spectroscopy mapping, Raman spectroscopy, N<jats:sub>2<\/jats:sub> sorption analysis, x-ray diffraction, x-ray photoelectron spectroscopy, M\u00f6ssbauer spectroscopy, and SQUID measurements.<\/jats:p>","DOI":"10.1088\/1361-6528\/ace059","type":"journal-article","created":{"date-parts":[[2023,6,21]],"date-time":"2023-06-21T22:51:21Z","timestamp":1687387881000},"page":"415602","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":7,"title":["Synthesis, thermal evolution and magnetic investigations of SBA-15 silica functionalized with anchored iron phosphonate molecules"],"prefix":"10.1088","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0528-8299","authenticated-orcid":true,"given":"Andrii","family":"Fedorchuk","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9106-9756","authenticated-orcid":false,"given":"Magdalena","family":"Laskowska","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1875-1588","authenticated-orcid":true,"given":"Grzegorz","family":"Cempura","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9269-8271","authenticated-orcid":false,"given":"Adam","family":"Kruk","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1489-2025","authenticated-orcid":false,"given":"Anna","family":"Nowak","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8686-1853","authenticated-orcid":false,"given":"Mateusz","family":"Dulski","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7012-930X","authenticated-orcid":true,"given":"Malgorzata","family":"Kac","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0031-0159","authenticated-orcid":false,"given":"Oleksandr","family":"Pastukh","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5599-9673","authenticated-orcid":false,"given":"Piotr M","family":"Zieli\u0144ski","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9596-4539","authenticated-orcid":false,"given":"Jerzy","family":"Kubacki","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2426-3916","authenticated-orcid":false,"given":"\u0141ukasz","family":"Laskowski","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"266","published-online":{"date-parts":[[2023,7,24]]},"reference":[{"key":"nanoace059bib1","doi-asserted-by":"publisher","first-page":"102A\u201308A","DOI":"10.1021\/es0323998","article-title":"Environmental technologies at the nanoscale","volume":"37","author":"Masciangioli","year":"2003","journal-title":"Environ. 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