dc.contributor.author | Georgiou, Efthalia | en |
dc.contributor.author | Ioannidis, Ioannis | en |
dc.contributor.author | Pashalidis, Ioannis | en |
dc.contributor.author | Viet, Dang Duc | en |
dc.contributor.author | Tsubota, Toshiki | en |
dc.contributor.author | Kalderis, Dimitrios | en |
dc.contributor.editor | Triantafyllidis, Konstantinos | en |
dc.creator | Georgiou, Efthalia | en |
dc.creator | Ioannidis, Ioannis | en |
dc.creator | Pashalidis, Ioannis | en |
dc.creator | Viet, Dang Duc | en |
dc.creator | Tsubota, Toshiki | en |
dc.creator | Kalderis, Dimitrios | en |
dc.date.accessioned | 2024-01-24T08:15:36Z | |
dc.date.available | 2024-01-24T08:15:36Z | |
dc.date.issued | 2023 | |
dc.identifier.issn | 2949-8392 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/66072 | |
dc.description.abstract | Palm oil is a product of major economic importance worldwide however, palm tree cultivation generates large quantities of palm fronds as waste. In this work, the sorption of Eu3+ from aqueous solutions by oxidized biochar derived from palm tree fronds was studied at pH 3 by batch type experiments under ambient conditions. Following biochar production, the sample was oxidized using HNO3 to increase the oxygen-containing moieties on its surface. The oxidized biochar was characterized through surface and spectroscopic techniques. As indicated by the coefficient of determination value of 0.99, Eu3+ adsorption was best described by the Langmuir isotherm model. The optimum adsorption capacity was determined at qmax= 0.81 mol kg−1. Adsorption was an entropy-driven process and followed the 2nd order kinetics, reaching a plateau value of 50% relative adsorption within 60 min. Furthermore, Fourier Transform InfraRed spectroscopic data and the effect of ionic strength indicated that adsorption proceeded via the development of inner-sphere complexes between Eu3+ and the carboxylic groups on the biochar surface. | en |
dc.language.iso | eng | en |
dc.publisher | Elsevier | en |
dc.source | Sustainable Chemistry for the Environment | en |
dc.source.uri | https://www.sciencedirect.com/science/article/pii/S2949839223000408#coi0005 | en |
dc.subject | Europium | en |
dc.subject | Biochar | en |
dc.subject | Palm tree | en |
dc.subject | Adsorption | en |
dc.subject | Rare earth elements | en |
dc.title | Europium removal from aqueous solutions by oxidized biochar prepared from waste palm tree fronds | en |
dc.type | info:eu-repo/semantics/article | en |
dc.identifier.doi | 10.1016/j.scenv.2023.100040 | |
dc.description.volume | 4 | en |
dc.author.faculty | 002 Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences | |
dc.author.department | Τμήμα Χημείας / Department of Chemistry | |
dc.type.uhtype | Article | en |
dc.contributor.orcid | Triantafyllidis, Konstantinos [0000-0001-8658-8500] | |
dc.contributor.orcid | Pashalidis, Ioannis [0000-0002-7587-6395] | |
dc.contributor.orcid | Viet, Dang Duc [0000-0001-9882-6780] | |
dc.contributor.orcid | Kalderis, Dimitrios [0000-0002-4983-065X] | |
dc.type.subtype | SCIENTIFIC_JOURNAL | en |
dc.gnosis.orcid | 0000-0001-8658-8500 | |
dc.gnosis.orcid | 0000-0002-7587-6395 | |
dc.gnosis.orcid | 0000-0001-9882-6780 | |
dc.gnosis.orcid | 0000-0002-4983-065X | |