Repository logo
 
Publication

Lignocellulosic Materials Used as Biosorbents for the Capture of Nickel (II) in Aqueous Solution

2022-01-17Journal article Open access
Simple item page
dc.contributor.authorCruz-Lopes, Luísa
dc.contributor.authorMacena, Morgana
dc.contributor.authorEsteves, Bruno
dc.contributor.authorSantos-Vieira, Isabel
dc.date.accessioned2023-01-12T14:29:49Z
dc.date.available2023-01-12T14:29:49Z
dc.date.issued2022-01-17
dc.date.updated2023-01-11T19:21:15Z
dc.description.abstractFour lignocellulosic materials (walnut shell, chestnut shell, pine wood and burnt pine wood) were analyzed as biosorbents to remove nickel ions in aqueous solution. The optimal pH condition was determined. Due to this, a range of different pHs (3.0 to 7.5) was tested. The adsorption isotherms and kinetics were established. To plot Langmuir and Freundlich isotherms, batch adsorption tests were made with variable nickel concentrations (5 to 200 mg L−1). The pseudo-first order, pseudo-second order, Elovich and intraparticle diffusion models were used to describe the kinetics, batch adsorption tests were carried out with 25 mg L−1 of nickel solution and agitation time varied from 10 to 1440 min. The specific surface area of the different materials was between 3.97 and 4.85 m2g−1 with the exception for wood with 1.74 m2g−1. The pore size was 26.54 nm for wood and varied between 5.40 and 7.33 nm for the remaining materials. The diffractograms analysis showed that all the lignocellulosic materials presented some crystalline domains with the exception of burnt pine wood which was completely amorphous. The best pH was found to be around 5.0. At this pH the adsorption was higher for chestnut shells, walnut shells, burnt pine wood and wood, respectively. All samples fitted the Langmuir model well, with R2 of 0.994 to 0.998. The sorption kinetics was well described by the pseudo-second order equation with R2 between 0.996 and 1.00. No significative differences on the surface of the materials before and after adsorption could be observed by SEM. Finally, all materials tested were able to remove nickel ions in aqueous solution.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCruz-Lopes, L., Macena, M., Esteves, B., & Santos-Vieira, I. (2022). Lignocellulosic Materials Used as Biosorbents for the Capture of Nickel (II) in Aqueous Solution. Applied Sciences, 12(2), Art. 2. https://doi.org/10.3390/app12020933pt_PT
dc.identifier.doi10.3390/app12020933pt_PT
dc.identifier.slugcv-prod-2904833
dc.identifier.urihttp://hdl.handle.net/10400.19/7523
dc.language.isoporpt_PT
dc.peerreviewedyespt_PT
dc.subjectBETpt_PT
dc.subjectbiosorbentspt_PT
dc.subjectisothermspt_PT
dc.subjectkineticspt_PT
dc.subjectlignocellulosic materialspt_PT
dc.subjectnickelpt_PT
dc.subjectSEMpt_PT
dc.subjectXRDpt_PT
dc.titleLignocellulosic Materials Used as Biosorbents for the Capture of Nickel (II) in Aqueous Solutionpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue2pt_PT
oaire.citation.startPage933pt_PT
oaire.citation.titleApplied Sciencespt_PT
oaire.citation.volume12pt_PT
person.familyNameGonçalves Oliveira Valente da Cruz-Lopes
person.familyNameEsteves
person.givenNameLuísa Paula
person.givenNameBruno
person.identifier2119255
person.identifier.ciencia-id7916-0833-5B38
person.identifier.ciencia-id521B-63A7-B248
person.identifier.orcid0000-0001-6502-7202
person.identifier.orcid0000-0001-6660-3128
person.identifier.ridC-2173-2012
person.identifier.scopus-author-id57202554441
rcaap.cv.cienciaid521B-63A7-B248 | Bruno Miguel Morais Lemos Esteves
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationfa1274f5-f7f8-4afd-8ed8-5f988d6c7226
relation.isAuthorOfPublicationa3351493-41e8-4758-acae-39e3382d0b04
relation.isAuthorOfPublication.latestForDiscoverya3351493-41e8-4758-acae-39e3382d0b04

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
applsci-12-00933-v2.pdf
Size:
3.28 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.82 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

ESTGV - DA - Artigo em revista científica, indexada ao WoS/Scopus
CERNAS - Artigo em revista científica, indexada ao WoS/Scopus
ESTGV - DEM - Artigo em revista científica, indexada ao WoS/Scopus