Publikationstyp: Beitrag in wissenschaftlicher Zeitschrift
Art der Begutachtung: Peer review (Publikation)
Titel: Nanofiber immobilized CeO2/dendrimer nanoparticles : an efficient photocatalyst in the visible and the UV
Autor/-in: Mousavi, Sara
Shahraki, Farhad
Aliabadi, Majid
Haji, Aminoddin
Deuber, Fabian
Adlhart, Christian
DOI: 10.1016/j.apsusc.2019.02.119
Erschienen in: Applied Surface Science
Erscheinungsdatum: 2019
Verlag / Hrsg. Institution: Elsevier
ISSN: 0169-4332
Sprache: Englisch
Schlagwörter: Ceria; Electrospinning; Dendrimer; Photocatalysis; Visible light; Fluorescence spectroscopy
Fachgebiet (DDC): 540: Chemie
Zusammenfassung: The contribution of a nanofiber based support and dendrimer coating on the visible light photocatalytic activity of CeO2 (ceria) nanoparticles towards phenol and azorubine dye was investigated. CeO2 nanoparticles were immobilized on electrospun nanofiber mats obtained from pullulan/poly(vinyl alcohol)/poly(acrylic acid) (Pul/PVA/PAA) blends and the CeO2 surface was modified with generation 3.0 PAMAM dendrimer. The catalytic activity was studied between pH 4 and 11 and it was compared with free CeO2- and free TiO2-nanoparticles for reference. The supported catalyst was photocatalytically active towards both phenol and azorubine and immobilization increased its reactivity by a factor of three. The mat type nature of the immobilized catalyst was also beneficial for simple recycling. XPS spectra revealed the presence of a Ce3+ state and the formation of hydroxyl radicals was shown using fluorescence spectroscopy.
URI: https://digitalcollection.zhaw.ch/handle/11475/15514
Volltext Version: Publizierte Version
Lizenz (gemäss Verlagsvertrag): Lizenz gemäss Verlagsvertrag
Departement: Life Sciences und Facility Management
Organisationseinheit: Institut für Chemie und Biotechnologie (ICBT)
Enthalten in den Sammlungen:Publikationen Life Sciences und Facility Management

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