Publication
Lignocellulosic Byproducts as Bio-Adsorbents for Lead Removal
| dc.contributor.author | Macena, Morgana | |
| dc.contributor.author | Pereira Helena | |
| dc.contributor.author | Grosche, Lucas | |
| dc.contributor.author | Esteves, Bruno | |
| dc.contributor.author | Santos-Vieira, Isabel | |
| dc.contributor.author | Gonçalves Oliveira Valente da Cruz-Lopes, Luísa Paula | |
| dc.date.accessioned | 2025-10-16T10:35:41Z | |
| dc.date.available | 2025-10-16T10:35:41Z | |
| dc.date.issued | 2025-05-16 | en_US |
| dc.date.updated | 2025-05-22T18:56:15Z | |
| dc.description.abstract | Water pollution by toxic metals, especially by lead ions, is a serious environmental concern due to these metals’ persistence, bioaccumulation, and toxicity. Aiming to reduce metal concentrations to non-toxic levels, this study analyzed the removal of lead from water through adsorption with bio-adsorbents. The adsorbent potential of the following four lignocellulosic byproducts were tested: walnut and chestnut shells, pine wood, and burnt pine wood. Removal rates of 97–99% were achieved at optimized conditions, i.e., at a pH of approximately 7, adsorbent dose of 4 g L−1, and 12 h of reaction. The BET specific surface area was between 1.74 and 4.85 m2 g−1. The pore size of the wood bio-adsorbent was 26.54 nm, and those of the remaining materials were between 5.40 and 7.33 nm. With R2 = 0.998–1.000, the kinetics fit the pseudo-second-order model better, suggesting that chemisorption is the dominant mechanism. Both Langmuir and Freundlich isothermal models fit the data well, with R2 = 0.946–0.999. It can be concluded that all the bio-adsorbents tested have the potential to efficiently remove lead ions from water. | eng |
| dc.description.version | N/A | |
| dc.identifier.citation | Macena, M., Pereira, H., Grosche, L., Esteves, B., Santos-Vieira, I., & Cruz-Lopes, L. (2025). Lignocellulosic Byproducts as Bio-Adsorbents for Lead Removal. Materials, 18(10), 2320. https://doi.org/10.3390/ma18102320 | |
| dc.identifier.doi | 10.3390/ma18102320 | en_US |
| dc.identifier.slug | cv-prod-4492203 | |
| dc.identifier.uri | http://hdl.handle.net/10400.19/9490 | |
| dc.language.iso | eng | |
| dc.peerreviewed | yes | |
| dc.relation | Research Center in Natural Resources, Environment and Society | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | lead removal | |
| dc.subject | lignocellulosic bio-adsorbents | |
| dc.subject | adsorbent characterization | |
| dc.subject | adsorption mechanisms | |
| dc.title | Lignocellulosic Byproducts as Bio-Adsorbents for Lead Removal | en_US |
| dc.type | research article | en_US |
| dspace.entity.type | Publication | |
| oaire.awardTitle | Research Center in Natural Resources, Environment and Society | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00681%2F2020/PT | |
| oaire.citation.issue | 10 | |
| oaire.citation.startPage | 2320 | |
| oaire.citation.title | Materials | en_US |
| oaire.citation.volume | 18 | |
| oaire.fundingStream | 6817 - DCRRNI ID | |
| oaire.version | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |
| person.familyName | Esteves | |
| person.familyName | Gonçalves Oliveira Valente da Cruz-Lopes | |
| person.givenName | Bruno | |
| person.givenName | Luísa Paula | |
| person.identifier | 2119255 | |
| person.identifier.ciencia-id | 521B-63A7-B248 | |
| person.identifier.ciencia-id | 7916-0833-5B38 | |
| person.identifier.orcid | 0000-0001-6660-3128 | |
| person.identifier.orcid | 0000-0001-6502-7202 | |
| person.identifier.rid | C-2173-2012 | |
| person.identifier.scopus-author-id | 57202554441 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| rcaap.cv.cienciaid | A61B-D50C-0F63 | Morgana Weber Macena | |
| rcaap.rights | openAccess | en_US |
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