dc.contributor.author | Zeynep Mine Hasdemir | |
dc.date.accessioned | 2023-04-07T07:57:06Z | |
dc.date.available | 2023-04-07T07:57:06Z | |
dc.date.issued | 2022 | tr |
dc.identifier.uri | https://doi.org/10.1016/j.ijbiomac.2022.04.128 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12418/13386 | |
dc.description.abstract | Chitosan (Ch), vermiculite (V) and lignin (L) were used as the components of a natural composite adsorbent (Ch-VL) for the removal of the UO22+ ions in aqueous solutions. During the study, we recorded and analyzed the initial UO22+ ion concentration, initial pH, contact time, temperature, and recovery. The recycling performance of the Ch-VL composite was assessed by three sequential adsorption/desorption experiments. Adsorption performance of the Ch-VL composite for UO22+ ions was 600 mg L−1 at pH 4.5 and temperature of 25 °C. Thermodynamic findings, ΔH0:28.1 kJ mol−1, and ΔG0:−14.1 kJ mol−1 showed that adsorption behavior was endothermic and spontaneous. Its maximum adsorption capacity was 0.322 mol kg−1, obtained from the Langmuir isotherm model. The adsorption kinetics indicated that it followed the pseudo-second-order and intraparticle diffusion rate kinetics. The adsorption thermodynamic shown indicated that the UO22+ ion adsorption was both spontaneous and endothermic. The adsorption process was enlightened by FT-IR and SEM-EDX analyses. The study suggested a simple and cost-effective approach for the removal of toxic UO22+ ions from wastewater. To highlight the adsorption mechanism, DFT calculations were performed. Theoretical results are in good agreement with experimental observations. | tr |
dc.language.iso | eng | tr |
dc.publisher | International Journal of Biological Macromolecules | tr |
dc.rights | info:eu-repo/semantics/openAccess | tr |
dc.title | Synthesis and characterization of chitosan-vermiculite-lignin ternary composite as an adsorbent for effective removal of uranyl ions from aqueous solution: Experimental and theoretical analyses | tr |
dc.type | article | tr |
dc.contributor.department | Sağlık Bilimleri Fakültesi | tr |
dc.contributor.authorID | https://orcid.org/0000-0002-5250-1267 | tr |
dc.identifier.volume | 209 | tr |
dc.identifier.endpage | 1247 | tr |
dc.identifier.startpage | 1234 | tr |
dc.relation.publicationcategory | Uluslararası Hakemli Dergide Makale - Kurum Öğretim Elemanı | tr |