{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,18]],"date-time":"2026-05-18T10:43:14Z","timestamp":1779100994422,"version":"3.51.4"},"reference-count":45,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2024,10,22]],"date-time":"2024-10-22T00:00:00Z","timestamp":1729555200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"CESAM","award":["UIDP\/50017\/2020+UIDB\/50017\/2020+LA\/P\/0094\/2020"],"award-info":[{"award-number":["UIDP\/50017\/2020+UIDB\/50017\/2020+LA\/P\/0094\/2020"]}]},{"name":"CESAM","award":["UIDP\/05608\/2020"],"award-info":[{"award-number":["UIDP\/05608\/2020"]}]},{"name":"CESAM","award":["UIDB\/05608\/2020"],"award-info":[{"award-number":["UIDB\/05608\/2020"]}]},{"name":"CESAM","award":["2022.10472.BD"],"award-info":[{"award-number":["2022.10472.BD"]}]},{"name":"CESAM","award":["UID\/FIS\/04650\/2013"],"award-info":[{"award-number":["UID\/FIS\/04650\/2013"]}]},{"name":"CESAM","award":["UID\/FIS\/04650\/2019"],"award-info":[{"award-number":["UID\/FIS\/04650\/2019"]}]},{"name":"H&amp;TRC","award":["UIDP\/50017\/2020+UIDB\/50017\/2020+LA\/P\/0094\/2020"],"award-info":[{"award-number":["UIDP\/50017\/2020+UIDB\/50017\/2020+LA\/P\/0094\/2020"]}]},{"name":"H&amp;TRC","award":["UIDP\/05608\/2020"],"award-info":[{"award-number":["UIDP\/05608\/2020"]}]},{"name":"H&amp;TRC","award":["UIDB\/05608\/2020"],"award-info":[{"award-number":["UIDB\/05608\/2020"]}]},{"name":"H&amp;TRC","award":["2022.10472.BD"],"award-info":[{"award-number":["2022.10472.BD"]}]},{"name":"H&amp;TRC","award":["UID\/FIS\/04650\/2013"],"award-info":[{"award-number":["UID\/FIS\/04650\/2013"]}]},{"name":"H&amp;TRC","award":["UID\/FIS\/04650\/2019"],"award-info":[{"award-number":["UID\/FIS\/04650\/2019"]}]},{"name":"FCT","award":["UIDP\/50017\/2020+UIDB\/50017\/2020+LA\/P\/0094\/2020"],"award-info":[{"award-number":["UIDP\/50017\/2020+UIDB\/50017\/2020+LA\/P\/0094\/2020"]}]},{"name":"FCT","award":["UIDP\/05608\/2020"],"award-info":[{"award-number":["UIDP\/05608\/2020"]}]},{"name":"FCT","award":["UIDB\/05608\/2020"],"award-info":[{"award-number":["UIDB\/05608\/2020"]}]},{"name":"FCT","award":["2022.10472.BD"],"award-info":[{"award-number":["2022.10472.BD"]}]},{"name":"FCT","award":["UID\/FIS\/04650\/2013"],"award-info":[{"award-number":["UID\/FIS\/04650\/2013"]}]},{"name":"FCT","award":["UID\/FIS\/04650\/2019"],"award-info":[{"award-number":["UID\/FIS\/04650\/2019"]}]},{"name":"FEDER","award":["UIDP\/50017\/2020+UIDB\/50017\/2020+LA\/P\/0094\/2020"],"award-info":[{"award-number":["UIDP\/50017\/2020+UIDB\/50017\/2020+LA\/P\/0094\/2020"]}]},{"name":"FEDER","award":["UIDP\/05608\/2020"],"award-info":[{"award-number":["UIDP\/05608\/2020"]}]},{"name":"FEDER","award":["UIDB\/05608\/2020"],"award-info":[{"award-number":["UIDB\/05608\/2020"]}]},{"name":"FEDER","award":["2022.10472.BD"],"award-info":[{"award-number":["2022.10472.BD"]}]},{"name":"FEDER","award":["UID\/FIS\/04650\/2013"],"award-info":[{"award-number":["UID\/FIS\/04650\/2013"]}]},{"name":"FEDER","award":["UID\/FIS\/04650\/2019"],"award-info":[{"award-number":["UID\/FIS\/04650\/2019"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>Novel photocatalysts were synthesized through the association of carbon quantum dots (CQDs) with commercial (P25) titanium dioxide (TiO2) by sonication. The resulting TiO2\/CQDs composite was then incorporated into the polyamide 66 (PA66) biopolymer nanofibers using the electrospinning technique, considering a composite nanoparticles-to-polymer ratio of 1:2 in the electrospinning precursor solution. The produced nanofibers presented suitable morphology and were tested for the photocatalytic degradation under simulated solar radiation of 10 mg L\u22121 of amoxicillin (AMX) and sulfadiazine (SDZ), in phosphate buffer solution (pH 8.06) and river water, using 1.5 g L\u22121 of photocatalyst. The presence of the photocatalyst increased the removal of AMX in phosphate buffer solution by 30 times, reducing the AMX degradation half-life time from 62 \u00b1 1 h (without catalyst) to 1.98 \u00b1 0.06 h. Moreover, SDZ degradation half-life time in phosphate buffer solution was reduced from 5.4 \u00b1 0.1 h (without catalyst) to 1.87 \u00b1 0.05 h in the presence of the photocatalyst. Furthermore, the PA66\/TiO2\/CQDs were also efficient in river water samples and maintained their performance in at least three cycles of SDZ photodegradation in river water. The presented results evidence that the produced photocatalyst can be a promising and sustainable solution for antibiotics\u2019 efficient removal from water.<\/jats:p>","DOI":"10.3390\/polym16212960","type":"journal-article","created":{"date-parts":[[2024,10,22]],"date-time":"2024-10-22T11:31:57Z","timestamp":1729596717000},"page":"2960","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Electrospun Nanofiber Dopped with TiO2 and Carbon Quantum Dots for the Photocatalytic Degradation of Antibiotics"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8539-4787","authenticated-orcid":false,"given":"Valentina","family":"Silva","sequence":"first","affiliation":[{"name":"Department of Chemistry, Centre for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193 Aveiro, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5565-7454","authenticated-orcid":false,"given":"Diana L. D.","family":"Lima","sequence":"additional","affiliation":[{"name":"H&TRC\u2014Health & Technology Research Center, Coimbra Health School, Polytechnic University of Coimbra, Rua 5 de Outubro, 3045-043 Coimbra, Portugal"}]},{"given":"Etelvina","family":"de Matos Gomes","sequence":"additional","affiliation":[{"name":"Centre of Physics of Minho and Porto Universities (CF-UM-UP), Laboratory for Materials and Emergent Technologies (LAPMET), University of Minho, 4710-057 Braga, Portugal"}]},{"given":"Bernardo","family":"Almeida","sequence":"additional","affiliation":[{"name":"Centre of Physics of Minho and Porto Universities (CF-UM-UP), Laboratory for Materials and Emergent Technologies (LAPMET), University of Minho, 4710-057 Braga, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9872-6381","authenticated-orcid":false,"given":"V\u00e2nia","family":"Calisto","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Centre for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193 Aveiro, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5380-9212","authenticated-orcid":false,"given":"Rosa M. F.","family":"Baptista","sequence":"additional","affiliation":[{"name":"Centre of Physics of Minho and Porto Universities (CF-UM-UP), Laboratory for Materials and Emergent Technologies (LAPMET), University of Minho, 4710-057 Braga, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2604-6704","authenticated-orcid":false,"given":"Goreti","family":"Pereira","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Centre for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193 Aveiro, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2024,10,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"640","DOI":"10.1111\/raq.12344","article-title":"Antibiotic use in aquaculture, policies and regulation, health and environmental risks: A review of the top 15 major producers","volume":"12","author":"Lulijwa","year":"2020","journal-title":"Rev. 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