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Activated biochar derived from cactus fibres - Preparation, characterization and application on Cu(II) removal from aqueous solutions

dc.contributor.authorHadjittofi, Loukiaen
dc.contributor.authorProdromou, Melpomenien
dc.contributor.authorPashalidis, Ioannisen
dc.creatorHadjittofi, Loukiaen
dc.creatorProdromou, Melpomenien
dc.creatorPashalidis, Ioannisen
dc.date.accessioned2019-11-21T06:19:16Z
dc.date.available2019-11-21T06:19:16Z
dc.date.issued2014
dc.identifier.urihttp://gnosis.library.ucy.ac.cy/handle/7/55531
dc.description.abstractThe adsorption efficiency of activated biochar prepared from cactus fibres regarding the removal of Cu(II) from aqueous solutions has been investigated as a function of various physicochemical parameters (e.g. pH, initial metal concentration, ionic strength, temperature and contact time). Activation of the biochar took place using nitric acid oxidation and characterisation was performed by SEM analysis, FTIR spectroscopy, N2 adsorption and acid-base titrations. The results show that laminar structures constitute the material and carboxylic moieties are the predominant binding sites. The experimental data were analyzed by the Langmuir, Freundlich and Dubinin-Radushkevich adsorption models and the monolayer adsorption capacity was found to be 3.5molkg-1. The effect of ionic strength and temperature on the adsorption efficiency indicates that at low pH outer-sphere and at near neutral pH inner-sphere complexes are the predominant surface species and the kinetic data obtained were fitted very well by the Lagergren rate expression. © 2014 Elsevier Ltd.en
dc.sourceBioresource technologyen
dc.source.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84899652529&doi=10.1016%2fj.biortech.2014.03.073&partnerID=40&md5=018cca2a23c0dbbc1b5afdd88a33a317
dc.subjectarticleen
dc.subjectpriority journalen
dc.subjectunclassified drugen
dc.subjectnonhumanen
dc.subjectchemistryen
dc.subjectisolation and purificationen
dc.subjectTitrationen
dc.subjectWateren
dc.subjecttitrimetryen
dc.subjectIonic strengthen
dc.subjectsolution and solubilityen
dc.subjectthermodynamicsen
dc.subjectchemical structureen
dc.subjectMetal ionsen
dc.subjectcopperen
dc.subjecttemperatureen
dc.subjectconcentration (parameters)en
dc.subjectFourier transform infrared spectroscopyen
dc.subjectleaden
dc.subjectAdsorptionen
dc.subjectChemicals removal (water treatment)en
dc.subjectSolutionsen
dc.subjectaqueous solutionen
dc.subjectcarboxylic aciden
dc.subjectcomplex formationen
dc.subjectinfrared spectroscopyen
dc.subjectActivated carbonen
dc.subjectpHen
dc.subjectscanning electron microscopyen
dc.subjectAdsorption efficiencyen
dc.subjectMonolayer adsorptionen
dc.subjectisothermen
dc.subjectphysical chemistryen
dc.subjectcationen
dc.subjectbinding siteen
dc.subjectplanten
dc.subjectbiotechnologyen
dc.subjectoxidationen
dc.subjectnitric oxideen
dc.subjectwaste component removalen
dc.subjectreaction kineticsen
dc.subjectPhysicochemical parametersen
dc.subjectphysicochemical propertyen
dc.subjectFTIR spectroscopyen
dc.subjectMetal concentrationsen
dc.subjectbiocharen
dc.subjectCactaceaeen
dc.subjectWatersen
dc.subjectactivated biocharen
dc.subjectActivation analysisen
dc.subjectBinding sitesen
dc.subjectbiomassen
dc.subjectBiomass by-producten
dc.subjectbiosorptionen
dc.subjectcactusen
dc.subjectcadmiumen
dc.subjectcharcoalen
dc.subjectcupric ionen
dc.subjectDubinin-Radushkevichen
dc.subjectEffect of ionic strengthen
dc.subjectFourier transform infrared photoacoustic spectroscopyen
dc.subjectInner sphere complexesen
dc.subjectnitric aciden
dc.subjectNitric acid oxidationen
dc.subjectOpuntiaen
dc.subjectOpuntia ficusen
dc.subjectplant fiberen
dc.subjectpollutant removalen
dc.subjectSpectroscopy, Fourier Transform Infrareden
dc.subjectwater pollutanten
dc.subjectWater Pollutants, Chemicalen
dc.subjectwater treatmenten
dc.titleActivated biochar derived from cactus fibres - Preparation, characterization and application on Cu(II) removal from aqueous solutionsen
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doi10.1016/j.biortech.2014.03.073
dc.description.volume159
dc.description.startingpage460
dc.description.endingpage464
dc.author.faculty002 Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences
dc.author.departmentΤμήμα Χημείας / Department of Chemistry
dc.type.uhtypeArticleen
dc.description.notes<p>Cited By :21</p>en
dc.source.abbreviationBioresour.Technol.en
dc.contributor.orcidPashalidis, Ioannis [0000-0002-7587-6395]
dc.gnosis.orcid0000-0002-7587-6395


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