Adsorptive performance of fly ash-derived zeolite modified by beta-cyclodextrin for ibuprofen, bisphenol A and caffeine removal from aqueous solutions - equilibrium and kinetic study
Artykuł w czasopiśmie
MNiSW
140
Lista 2021
| Status: | |
| Warianty tytułu: |
Adsorptive performance of fly ash-derived zeolite modified by β-cyclodextrin for ibuprofen, bisphenol A and caffeine removal from aqueous solutions – equilibrium and kinetic study
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| Autorzy: | Bandura Lidia, Białoszewska Monika, Malinowski Szymon, Franus Wojciech |
| Dyscypliny: | |
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| Rok wydania: | 2021 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Wolumen/Tom: | 562 |
| Numer artykułu: | 150160 |
| Strony: | 1 - 11 |
| Web of Science® Times Cited: | 50 |
| Scopus® Cytowania: | 54 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Finansowanie: | The “Fly ash as the precursors of functionalized materials for applications in environmental engineering, civil engineering and agriculture” no. POIR.04.04.00-00-14E6/18-00 project is carried out within the TEAM-NET programme of the Foundation for Polish Science co-financed by the European Union under the European Regional Development Fund. |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| In this paper synthetic zeolite of NaX structure type was modified with β-cyclodextrin (CD) in order to enhance the adsorption of ibuprofen (IBU), bisphenol A (BPA) and caffeine (CFN) from aqueous solutions. CHN elemental analysis, scanning electron microscopy (SEM), X-ray diffraction (XRD), thermal analysis (TG/DTA), infrared Fourier spectroscopy (FT-IR) and N2 adsorption isotherm were done to obtain surface characteristic of the hybrid material. The batch adsorption tests were performed to study adsorbent-adsorbate interaction at molecular level. IBU, BPA and CFN adsorption kinetics on NaX-CD followed the pseudo-second order model indicating the mechanism of electron sharing/exchange. IBU and BPA adsorption was best fitted to the Langmuir isotherm, suggesting monolayer adsorption and the formation of host-guest complexes with hydrogen bond formation. For CFN the best adjustment was achieved for Temkin model and the adsorption mechanism was mainly attributed to the π-π interactions. The maximum adsorption capacities were 31.3, 32.7 and 11.8 mg/g for IBU, BPA and CFN, respectively. The adsorption behaviour of NaX-CD indicates that it can constitute an efficient adsorbent for the removal of organic micropollutants from aqueous media. |
