Please use this identifier to cite or link to this item:
https://doi.org/10.21256/zhaw-3566
Publication type: | Article in scientific journal |
Type of review: | Peer review (publication) |
Title: | Efficient dye adsorption by highly porous nanofiber aerogels |
Authors: | 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 |
Published in: | Colloids and Surfaces A: Physicochemical and Engineering Aspects |
Volume(Issue): | 547 |
Page(s): | 117 |
Pages to: | 125 |
Issue Date: | 2018 |
Publisher / Ed. Institution: | Elsevier |
ISSN: | 0927-7757 |
Language: | English |
Subjects: | Water purification; Nanofiber sponge; Adsorption; Mass transport; Electrospinning |
Subject (DDC): | 540: Chemistry 620: Engineering |
Abstract: | 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 |
Fulltext version: | Published version |
License (according to publishing contract): | CC BY-NC-ND 4.0: Attribution - Non commercial - No derivatives 4.0 International |
Restricted until: | 2020-03-26 |
Departement: | Life Sciences and Facility Management |
Organisational Unit: | Institute of Chemistry and Biotechnology (ICBT) |
Appears in collections: | Publikationen Life Sciences und Facility Management |
Files in This Item:
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2018_Mousavi_Colloids and Surfaces A_Efficient dye adsorption by highly porous nanofiber aerogels - postprint.pdf | Accepted Version | 1.64 MB | Adobe PDF | View/Open |
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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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