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Publikationstyp: Beitrag in wissenschaftlicher Zeitschrift
Art der Begutachtung: Peer review (Publikation)
Titel: Efficient dye adsorption by highly porous nanofiber aerogels
Autor/-in: Mousavi, Sara
Deuber, Fabian
Petrozzi, Sergio
Federer, Lukas
Aliabadi, Majid
Shahraki, Farhad
Adlhart, Christian
DOI: 10.21256/zhaw-3566
10.1016/j.colsurfa.2018.03.052
Erschienen in: Colloids and Surfaces A: Physicochemical and Engineering Aspects
Band(Heft): 547
Seite(n): 117
Seiten bis: 125
Erscheinungsdatum: 2018
Verlag / Hrsg. Institution: Elsevier
ISSN: 0927-7757
Sprache: Englisch
Schlagwörter: Water purification; Nanofiber sponge; Adsorption; Mass transport; Electrospinning
Fachgebiet (DDC): 540: Chemie
620: Ingenieurwesen
Zusammenfassung: Electrospun nanofiber membranes are frequently used in adsorption processes thanks to their high specific surface area, tailored surface functionality, and fiber uniformity. However, they are still facing challenges such as low mechanical stability and unfavorable mass transport properties. In this study, an ultra-light and robust 3D nanofiber aerogel (NFA) or nanofiber sponge with tunable porosity and flexibility was synthesized from short pullulan/polyvinyl alcohol/polyacrylic acid nanofibers using a freeze casting process followed by thermal crosslinking. We demonstrate time the application of such NFAs in batch and continuous adsorption systems and compare their performance with flat nanofiber membranes (NFM). The NFAs proved to be promising adsorbents for cationic dyes due to their high adsorption capacity (383 mg/g) and their reusability. Langmuir isotherm was a suitable model for describing the adsorption process. The endothermic system followed a pseudo second order kinetic model and intra-fiber adsorption is found to be involved in the adsorption process. Dye adsorption by 3D NFAs was four times faster than for the respective flat NFMs and when used in a continuous process as a deep-bed filter, the pressure drop through the NFA was reduced by a factor of 40 while maintaining equal adsorption performance as for the NFM.
URI: https://digitalcollection.zhaw.ch/handle/11475/4422
Volltext Version: Publizierte Version
Lizenz (gemäss Verlagsvertrag): CC BY-NC-ND 4.0: Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International
Gesperrt bis: 2020-03-26
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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Mousavi, S., Deuber, F., Petrozzi, S., Federer, L., Aliabadi, M., Shahraki, F., & Adlhart, C. (2018). Efficient dye adsorption by highly porous nanofiber aerogels. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 547, 117–125. https://doi.org/10.21256/zhaw-3566
Mousavi, S. et al. (2018) ‘Efficient dye adsorption by highly porous nanofiber aerogels’, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 547, pp. 117–125. Available at: https://doi.org/10.21256/zhaw-3566.
S. Mousavi et al., “Efficient dye adsorption by highly porous nanofiber aerogels,” Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol. 547, pp. 117–125, 2018, doi: 10.21256/zhaw-3566.
MOUSAVI, Sara, Fabian DEUBER, Sergio PETROZZI, Lukas FEDERER, Majid ALIABADI, Farhad SHAHRAKI und Christian ADLHART, 2018. Efficient dye adsorption by highly porous nanofiber aerogels. Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2018. Bd. 547, S. 117–125. DOI 10.21256/zhaw-3566
Mousavi, Sara, Fabian Deuber, Sergio Petrozzi, Lukas Federer, Majid Aliabadi, Farhad Shahraki, and Christian Adlhart. 2018. “Efficient Dye Adsorption by Highly Porous Nanofiber Aerogels.” Colloids and Surfaces A: Physicochemical and Engineering Aspects 547: 117–25. https://doi.org/10.21256/zhaw-3566.
Mousavi, Sara, et al. “Efficient Dye Adsorption by Highly Porous Nanofiber Aerogels.” Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol. 547, 2018, pp. 117–25, https://doi.org/10.21256/zhaw-3566.


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