{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T16:02:20Z","timestamp":1790006540051,"version":"4.0.1"},"reference-count":43,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T00:00:00Z","timestamp":1789948800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T00:00:00Z","timestamp":1789948800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Small"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Metal\u2013organic frameworks (MOFs) offer tunable platforms for water purification, yet the disposal of contaminant\u2010loaded frameworks creates secondary waste and limits their sustainable use. Here, a circular adsorbent\u2010to\u2010catalyst strategy is demonstrated using a freeze\u2010dried two\u2010dimensional Cu\u2013imidazolate framework (FD\u2010BNMG\u20101). Prepared through scalable aqueous synthesis and lyophilization, FD\u2010BNMG\u20101 removes more than 95% of Mn(II) from water within 24 h and reaches a maximum adsorption capacity of 370 mg g\n                    <jats:sup>\u22121<\/jats:sup>\n                    , the highest reported for an unmodified MOF adsorbent toward Mn(II). Cu and Mn K\u2010edge X\u2010ray absorption spectroscopy, supported by powder X\u2010ray diffraction, Fourier\u2010transform infrared spectroscopy, X\u2010ray photoelectron spectroscopy, scanning and transmission electron microscopy with energy\u2010dispersive X\u2010ray spectroscopy, and nitrogen sorption analysis, reveals that Mn sequestration drives substantial structural and electronic reconstruction. The Cu coordination number increases from 4.0 to 5.7, long\u2010range Cu order is disrupted, and an open, redox\u2010heterogeneous Mn\u2010integrated Cu coordination nanonetwork is formed. Rather than being discarded, the resulting spent material, Mn@FDB, is directly repurposed as a heterogeneous catalyst for oxidative C\u2013O cross\u2010coupling reactions, affording aryl ester products in yields up to 84% and retaining activity over multiple cycles. This transformation demonstrates how adsorption can program a functional second life for contaminant\u2010loaded MOFs. The approach integrates pollutant capture, material transformation, and efficient catalytic valorization.\n                  <\/jats:p>","DOI":"10.1002\/smll.75834","type":"journal-article","created":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T15:16:16Z","timestamp":1790003776000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Adsorption\u2010Programmed Transformation of a Two\u2010Dimensional Cu\u2013Imidazolate Framework into Mn\u2010Integrated Catalytic Nanonetwork"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0729-0752","authenticated-orcid":false,"given":"Prathmesh","family":"Bhadane","sequence":"first","affiliation":[{"name":"Department of Chemistry Indian Institute of Technology Bombay  Mumbai 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