Show simple item record

dc.contributor.authorAbu-Danso, Emmanuel
dc.contributor.authorPeräniemi, Sirpa
dc.contributor.authorLeiviskä, Tiina
dc.contributor.authorBhatnagar, Amit
dc.date.accessioned2018-09-21T10:43:20Z
dc.date.available2018-09-21T10:43:20Z
dc.date.issued2018
dc.identifier.urihttps://erepo.uef.fi/handle/123456789/6935
dc.description.abstractCellulose nanofibers (CNFs) tethered with sulphur as anionic ligand were synthesized from medical absorbent cotton by dissolution with NaOH, CO(NH2)₂ followed by mechanical intrusion of sulphur from SC(NH₂)₂ at an elevated temperature. The solid-phase CNFs embedded with sulphur complexes possessed negative sites which were used to remove cationic metals viz., Pb(II) and Cd(II) from synthetic and industrial wastewater. The physicochemical properties of the CNFs were analyzed by Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), pH at point of zero charge (pHpzc) and X-ray photoelectron spectroscopy (XPS). Batch adsorption studies were conducted with synthetic wastewater to optimize the conditions for Pb(II) and Cd(II) removal by CNFs. Different adsorption kinetic models were applied to assess and define the adsorption mechanism. The maximum Langmuir adsorption capacity was found to be 1.16 and 0.82 mmol g−1 for Pb(II) and Cd(II) ions, respectively. Regeneration studies showed that the CNFs can be reused using 0.1 M NaOH as eluent. The percentage removal efficiency of different cationic metals by CNFs from untreated industrial wastewater ranged from ca. 90–98%.
dc.language.isoenglanti
dc.publisherElsevier BV
dc.relation.ispartofseriesENVIRONMENTAL POLLUTION
dc.relation.urihttp://dx.doi.org/10.1016/j.envpol.2018.07.044
dc.rightsCC BY-NC-ND https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectcellulose nanofibers
dc.subjectsulphur ligand
dc.subjectadsorption
dc.subjectlead
dc.subjectcadmium
dc.subjectmodelling
dc.titleSynthesis of S-ligand tethered cellulose nanofibers for efficient removal of Pb(II) and Cd(II) ions from synthetic and industrial wastewater
dc.description.versionfinal draft
dc.contributor.departmentYmpäristö- ja biotieteiden laitos / Toiminta
dc.contributor.departmentSchool of Pharmacy, Activities
uef.solecris.id55989607en
dc.type.publicationTieteelliset aikakauslehtiartikkelit
dc.rights.accessrights© Elsevier Ltd
dc.relation.doi10.1016/j.envpol.2018.07.044
dc.description.reviewstatuspeerReviewed
dc.format.pagerange1988-1997
dc.relation.issn0269-7491
dc.relation.issuePart B
dc.relation.volume242
dc.rights.accesslevelopenAccess
dc.type.okmA1
uef.solecris.openaccessEi


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record