Spontaneous generation of reactive oxygen species via molecular oxygen activation over a defect-rich and boron-doped MoS<sub>2</sub> catalyst for an advanced oxidation process
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Autor:innen
Autor:in (Körperschaft)
Publikationsdatum
23.09.2024
Typ der Arbeit
Studiengang
Sammlung
Typ
01A - Beitrag in wissenschaftlicher Zeitschrift
Herausgeber:innen
Herausgeber:in (Körperschaft)
Betreuer:in
Übergeordnetes Werk
ACS ES&T Engineering
Themenheft
DOI der Originalpublikation
Link
Reihe / Serie
Reihennummer
Jahrgang / Band
4
Ausgabe / Nummer
11
Seiten / Dauer
2819–2828
Patentnummer
Verlag / Herausgebende Institution
American Chemical Society
Verlagsort / Veranstaltungsort
Auflage
Version
Programmiersprache
Abtretungsempfänger:in
Praxispartner:in/Auftraggeber:in
Zusammenfassung
With the proposal of a low carbon strategy, spontaneous generation of reactive oxygen species (ROS) via O2 activation under mild ambient conditions is considered an environmentally friendly and cost-effective technology for an advanced oxidation process. Herein, a novel O2 activation system based on a defect-rich and boron-doped MoS2 catalyst (B-MoS2–x) was constructed for organics degradation without the addition of oxidants and energy consumption. This system enabled electron transfer from organic pollutants to O2 under the effect of an interfacial microelectric field, exhibiting high catalytic activity and stability. Even after five-cycle use, the decrease in organics degradation efficiency in the B-MoS2–x/air system is less than 5%. The long-term RhB elimination experiment is conducted in a homemade continuous-flow membrane-based reactor, which demonstrated that the B-MoS2–x/air system can be operated continuously and steadily for 48 h. Due to the difference of adsorption energy, O2 and organics were, respectively, adsorbed on S defect and B, further facilitating activation of O2 to ROS for organics degradation. Additionally, the turnover frequency of O2·– production over B-MoS2–x reaches 2.93 h–1, and the biotoxicity of the pollutants is decreased obviously in the B-MoS2–x/air system. This work provided a new idea to promote the research of the microelectric field for O2 activation to ROS.
Schlagwörter
Fachgebiet (DDC)
Veranstaltung
Startdatum der Ausstellung
Enddatum der Ausstellung
Startdatum der Konferenz
Enddatum der Konferenz
Datum der letzten Prüfung
ISBN
ISSN
2690-0645
Sprache
Englisch
Während FHNW Zugehörigkeit erstellt
Ja
Zukunftsfelder FHNW
Publikationsstatus
Veröffentlicht
Begutachtung
Peer-Review der ganzen Publikation
Open Access-Status
Closed
Lizenz
Zitation
Zhang, L., Yin, X., Hou, Z., Wang, J., & Corvini, P. (2024). Spontaneous generation of reactive oxygen species via molecular oxygen activation over a defect-rich and boron-doped MoS<sub>2</sub> catalyst for an advanced oxidation process. ACS ES&T Engineering, 4(11), 2819–2828. https://doi.org/10.1021/acsestengg.4c00377