Reusable aminated electrospun nanofiber mat for enhanced phosphorus removal: Fabrication and performance evaluation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F26%3A0199666" target="_blank" >RIV/00216305:26620/26:0199666 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/abs/pii/S1383586625033969?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S1383586625033969?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.seppur.2025.134799" target="_blank" >10.1016/j.seppur.2025.134799</a>
Alternative languages
Result language
angličtina
Original language name
Reusable aminated electrospun nanofiber mat for enhanced phosphorus removal: Fabrication and performance evaluation
Original language description
To address the issue of eutrophication in natural water bodies, it is essential to remove phosphorus from discharged wastewater. In this study, we developed an aminated polyacrylonitrile@polyethylenimine (APP) nanofiber mat incorporated with zeolitic imidazolate frameworks-8 (ZIF-8), denoted as APPZ-X, where "X" represents the weight ratio of ZIF-8 relative to the polyethylenimine (PEI) polymer. The optimized nanofiber mat (APPZ-5) demonstrated a high phosphorus adsorption capacity of 139.07 mg-Pg(-1) and rapid kinetics, reaching equilibrium within 90 min. This enhanced performance stems from the abundant functional groups introduced through PEI amination of PAN and ZIF-8 incorporation. PEI functionalization conferred superhydrophilicity, while ZIF-8 reduced nanofiber diameters and increased surface roughness, enhancing phosphorus adsorption. The adsorption process best fitted the Redlich-Peterson isotherm model. Column adsorption data aligned closely with the Clark model, indicating ligand exchange and multilayer adsorption mechanisms. The adsorption mechanism was further elucidated through systematic Fourier Transform Infrared (FTIR) spectroscopy and X-ray Photoelectron Spectroscopy (XPS) analyses. Notably, APPZ-5 maintained high phosphorus removal efficiency over 10 consecutive cycles, demonstrating excellent reusability. These results underscore its significant potential as a durable adsorbent for long-term water phosphorus removal.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20401 - Chemical engineering (plants, products)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Separation and purification technology
ISSN
1383-5866
e-ISSN
1873-3794
Volume of the periodical
379
Issue of the periodical within the volume
1
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
12
Pages from-to
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UT code for WoS article
001571157400010
EID of the result in the Scopus database
2-s2.0-105013869317