Selective removal of phenolic contaminants for carbon recycling by activated persulfate based on oxidative polymerization mechanism
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Autor:in (Körperschaft)
Publikationsdatum
05/2024
Typ der Arbeit
Studiengang
Sammlung
Typ
01A - Beitrag in wissenschaftlicher Zeitschrift
Herausgeber:innen
Herausgeber:in (Körperschaft)
Betreuer:in
Übergeordnetes Werk
Chemical Engineering Journal
Themenheft
DOI der Originalpublikation
Link
Reihe / Serie
Reihennummer
Jahrgang / Band
487
Ausgabe / Nummer
Seiten / Dauer
150214
Patentnummer
Verlag / Herausgebende Institution
Elsevier
Verlagsort / Veranstaltungsort
Auflage
Version
Programmiersprache
Abtretungsempfänger:in
Praxispartner:in/Auftraggeber:in
Zusammenfassung
A novel approach for selective removal of phenolic contaminants and polyphenols recycling based on oxidative polymerization is explored, which is significantly different from conventional degradation processes. Plenty of bridging OH− and lattice oxygen are bound on CuO@CuCeyO1+2y+x/2-IE due to strong coordination between Ce and O, which induced formation of Cu(III) with high redox potential. Cu(III) could not only form outer-sphere complexation with peroxymonosulfate (PMS) for enhancement of O2•– production involving series of chain reactions, but also promote O2•– conversion to singlet oxygen (1O2). Owing to electrophilicity, 1O2 preferentially attacked the phenolic hydroxyl group with the production of phenoxeniums ions, and phenoxide ions could immediately couple with negatively charged hydroxyl groups of other bisphenol A (BPA) molecular so as to make polymer chains get a sustained growth over CuO@CuCeyO1+2y+x/2-IE. Thus, CuO@CuCeyO1+2y+x/2-IE can selectively remove phenolic contaminants from water with low oxidant consumption, and simultaneously recycle more than 80 % of polyphenols. In summary, the present work demonstrated the predominant role and mechanism of 1O2 in triggering the oxidative polymerization of BPA, which contributed to construction of cost-efficient catalytic system for phenolic contaminants conversion into polyphenols.
Schlagwörter
Fachgebiet (DDC)
Veranstaltung
Startdatum der Ausstellung
Enddatum der Ausstellung
Startdatum der Konferenz
Enddatum der Konferenz
Datum der letzten Prüfung
ISBN
ISSN
1385-8947
1873-3212
1873-3212
Sprache
Englisch
Während FHNW Zugehörigkeit erstellt
Ja
Zukunftsfelder FHNW
Publikationsstatus
Veröffentlicht
Begutachtung
Peer-Review der ganzen Publikation
Open Access-Status
Closed
Lizenz
Zitation
Wang, R., Chen, H., Zhang, L., Wang, J., Li, A., & Corvini, P. (2024). Selective removal of phenolic contaminants for carbon recycling by activated persulfate based on oxidative polymerization mechanism. Chemical Engineering Journal, 487, 150214. https://doi.org/10.1016/j.cej.2024.150214