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dc.contributor.authorHokkanen, Sanna
dc.contributor.authorBhatnagar, Amit
dc.contributor.authorSrivastava, Varsha
dc.contributor.authorSuorsa, Valtteri
dc.contributor.authorSillanpää, Mika
dc.date.accessioned2018-09-21T07:05:20Z
dc.date.available2018-09-21T07:05:20Z
dc.date.issued2018
dc.identifier.urihttps://erepo.uef.fi/handle/123456789/6929
dc.description.abstractA novel hydroxyapatite-bentonite clay-nanocellulose (CHA-BENT-NCC) composite material was successfully prepared as adsorbent for the removal of Ni2+, Cd2+ and PO43− from aqueous solutions. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive analysis of X-rays (EDAX), X-ray diffraction analysis (XRD) and Fourier-transform infrared spectroscopy (FTIR) were used for characterization of the adsorbent. The effect of pH, contact time, temperature, and initial adsorbate concentration were studied for optimization purpose. The adsorption behavior of the investigated ions were well described by the Freundlich adsorption model, and the maximum adsorption capacity for Ni2+, Cd2+ and PO43− was estimated to be 29.46 mmol/g, 10.34 mmol/g and 4.90 mmol/g, respectively. Desorption efficiency was achieved by treatment with 0.01 M HNO3 for metals and 0.10 M NaOH for PO43−. Five adsorption–desorption cycles were performed without significant decrease in adsorption capacities. The CHA-BENT-NCC material proved to be a very effective adsorption material for the treatment of mining water also from a copper mine in Finland.
dc.language.isoenglanti
dc.publisherElsevier BV
dc.relation.ispartofseriesInternational Journal of Biological Macromolecules
dc.relation.urihttp://dx.doi.org/10.1016/j.ijbiomac.2018.06.095
dc.rightsCC BY-NC-ND https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectcomposite material
dc.subjecthydroxyapatite-bentonite clay-nanocellulose (CHA-BENT-NCC)
dc.subjectadsorption isotherms
dc.subjectmetals and phosphate removal
dc.subjectwater treatment
dc.titleRemoval of Cd2+, Ni2+ and PO43- from aqueous solution by hydroxyapatite-bentonite clay-nanocellulose composite
dc.description.versionfinal draft
dc.contributor.departmentYmpäristö- ja biotieteiden laitos / Toiminta
uef.solecris.id55668432en
dc.type.publicationTieteelliset aikakauslehtiartikkelit
dc.rights.accessrights© Elsevier B.V.
dc.relation.doi10.1016/j.ijbiomac.2018.06.095
dc.description.reviewstatuspeerReviewed
dc.format.pagerange903-912
dc.publisher.countryAlankomaat
dc.relation.issn0141-8130
dc.relation.issuePart A
dc.relation.volume118
dc.rights.accesslevelopenAccess
dc.type.okmA1
uef.solecris.openaccessEi


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