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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
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
Impact Factor:	7,392
Web of Science® Times Cited:	64
Scopus® Cytowania:	70
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.

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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

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