dc.contributor.author | Demetriou, Antri | en |
dc.contributor.author | Pashalidis, Ioannis | en |
dc.creator | Demetriou, Antri | en |
dc.creator | Pashalidis, Ioannis | en |
dc.date.accessioned | 2019-11-21T06:18:43Z | |
dc.date.available | 2019-11-21T06:18:43Z | |
dc.date.issued | 2011 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/55406 | |
dc.description.abstract | The paper presents and discusses the effect of various physicochemical parameters (e.g. pH, ionic strength, Cr(VI) initial concentration, amount of the adsorbent, temperature and contact time between metal ion and adsorbent) on the adsorption efficiency of Cr(VI) on dunite in aqueous solutions under atmospheric conditions. Evaluation of the experimental data shows that dunite presents increased affinity for Cr(VI) over a wide pH range and Cr(VI) concentration, and the experimental data are well fitted by the K d adsorption model. The relative adsorption is pH dependent and decreases slightly (about 10%) with increasing pH, because of changes in the surface charge of the solid. The effect of the ionic strength is significant (particularly at low pH), indicating the predominance of outer-sphere complexes. Moreover, adsorption experiments at various temperatures, two different pH values (pH 3 and pH 8) and three different ionic strengths (0.0, 0.1 and 1.0 M NaClO 4), indicate an endothermic but spontaneous entropy-driven processes. © IWA Publishing 2011. | en |
dc.source | Water Science and Technology | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-79953190822&doi=10.2166%2fwst.2011.118&partnerID=40&md5=abd5e8785ab243e098aba3d6b437b248 | |
dc.subject | numerical model | en |
dc.subject | article | en |
dc.subject | controlled study | en |
dc.subject | Time Factors | en |
dc.subject | unclassified drug | en |
dc.subject | binding affinity | en |
dc.subject | Experimental data | en |
dc.subject | entropy | en |
dc.subject | Water | en |
dc.subject | Ionic strength | en |
dc.subject | Metal ions | en |
dc.subject | Chromium | en |
dc.subject | temperature | en |
dc.subject | concentration (parameters) | en |
dc.subject | experimental study | en |
dc.subject | Aqueous solutions | en |
dc.subject | Adsorption | en |
dc.subject | Spheres | en |
dc.subject | aqueous solution | en |
dc.subject | pH | en |
dc.subject | chemical binding | en |
dc.subject | Hydrogen-Ion Concentration | en |
dc.subject | Adsorption efficiency | en |
dc.subject | Chromium compounds | en |
dc.subject | Minerals | en |
dc.subject | Dunite | en |
dc.subject | atmosphere | en |
dc.subject | Adsorption experiment | en |
dc.subject | Osmolar Concentration | en |
dc.subject | surface property | en |
dc.subject | pH effects | en |
dc.subject | concentration (composition) | en |
dc.subject | chemical interaction | en |
dc.subject | Atmospheric conditions | en |
dc.subject | adsorbent | en |
dc.subject | adsorption kinetics | en |
dc.subject | Adsorption model | en |
dc.subject | Contact time | en |
dc.subject | endothermy | en |
dc.subject | Environmental Pollutants | en |
dc.subject | Hexavalent chromium | en |
dc.subject | Initial concentration | en |
dc.subject | ion | en |
dc.subject | K d | en |
dc.subject | Outer-sphere complexes | en |
dc.subject | pH value | en |
dc.subject | PH-dependent | en |
dc.subject | Physicochemical parameters | en |
dc.subject | physicochemical property | en |
dc.subject | rock | en |
dc.subject | sodium chlorate | en |
dc.subject | temperature effect | en |
dc.subject | Wide pH range | en |
dc.title | Adsorption of hexavalent chromium on dunite | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.2166/wst.2011.118 | |
dc.description.volume | 63 | |
dc.description.issue | 4 | |
dc.description.startingpage | 818 | |
dc.description.endingpage | 824 | |
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.description.notes | <p>Cited By :3</p> | en |
dc.source.abbreviation | Water Sci.Technol. | en |
dc.contributor.orcid | Pashalidis, Ioannis [0000-0002-7587-6395] | |
dc.gnosis.orcid | 0000-0002-7587-6395 | |