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The aminolysis reaction products\u2014a bis-aminoamide (BAETA) and oligomers\u2014exhibit high CO\n                    <jats:sub>2<\/jats:sub>\n                    capture capacity up to 3.4 moles per kilogram as a stand-alone organic solid material. BAETA shows strong chemisorption featuring high selectivity for CO\n                    <jats:sub>2<\/jats:sub>\n                    capture from flue gas (5 to 20% CO\n                    <jats:sub>2<\/jats:sub>\n                    ) and ambient air (~400 parts per million CO\n                    <jats:sub>2<\/jats:sub>\n                    ) under humid conditions. Our thermally stable material (&gt;250\u00b0C) enables CO\n                    <jats:sub>2<\/jats:sub>\n                    capture at high temperatures (up to 170\u00b0C) for multiple cycles. Scalability of the material production was demonstrated by performing aminolysis of untreated consumer waste PET of 1 kilogram. Our approach introduces a simple and straightforward solution that can address both plastic waste and carbon dioxide, offering a potential pathway toward net negative emissions.\n                  <\/jats:p>","DOI":"10.1126\/sciadv.adv5906","type":"journal-article","created":{"date-parts":[[2025,9,5]],"date-time":"2025-09-05T17:58:29Z","timestamp":1757095109000},"update-policy":"https:\/\/doi.org\/10.34133\/aaas_crossmark","source":"Crossref","is-referenced-by-count":29,"title":["Repurposing polyethylene terephthalate plastic waste to capture carbon dioxide"],"prefix":"10.1126","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9718-5157","authenticated-orcid":true,"given":"Margarita","family":"Poderyte","sequence":"first","affiliation":[{"name":"Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen \u00d8, Denmark."},{"name":"The Novo Nordisk Foundation CO2 Research Center (CORC), Aarhus University, Gustav Wieds Vej 10C, 8000 Aarhus C, 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