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KOH-activated tire pyrolysis char as an adsorbent for chloroorganic water pollutants

cris.virtual.author-orcid0000-0002-1750-0437
cris.virtual.author-orcid0000-0003-3745-253X
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cris.virtualsource.author-orcid85887364-85ee-4a53-91e4-4f76e156f319
cris.virtualsource.author-orcid631c38ef-9f23-4297-935b-203f5ba9505b
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
dc.abstract.enActivated carbons (ACs) produced from end-of-life tires with different tire pyrolysis char (TPC)-to-activator (KOH) ratios of 1:2, 1:3, and 1:4 were prepared and characterized. These materials were used as adsorbents for the removal of two common chloroorganic water contaminants such as 2,4-dichlorophenol (DCP) and 2,4-dichlorophenoxyacetic acid (2,4-D). The adsorption kinetics, equilibrium adsorption, and effects of solution pH were investigated. The adsorption of both adsorbates was found to be pH-dependent and preferred in acidic environments. The adsorption kinetics was evaluated using pseudo-first-order and pseudo-second-order kinetic models and mechanism– using Weber–Morris and Boyd models. Results demonstrated that the adsorption of DCP and 2,4-D on all ACs followed the pseudo-second-order model and was controlled by film diffusion. The Langmuir isotherm described the equilibrium data better than the Freundlich isotherm model. The maximum adsorption capacity of DCP adsorbed on AC1:2, AC1:3, and AC1:4 at equilibrium was 0.582, 0.609, and 0.739 mmol/g, respectively, while the maximum adsorption capacities for 2,4-D were 0.733, 0.937, and 1.035 mmol/g, respectively. The adsorption rate and efficiency were closely correlated with the porous structure of the tested adsorbents. The results showed that the activated carbons obtained from the scrap of end-of-life tires as raw materials could be used as a low-cost and alternative adsorbent for the removal of chlorinated organic pollutants from water.
dc.affiliationWydział Leśny i Technologii Drewna
dc.affiliation.instituteKatedra Chemicznej Technologii Drewna
dc.contributor.authorKuśmierek, Krzysztof
dc.contributor.authorDoczekalska, Beata
dc.contributor.authorBartkowiak, Monika Karolina
dc.contributor.authorŚwiątkowski, Andrzej
dc.contributor.authorCherbański, Robert
dc.contributor.authorKotkowski, Tomasz
dc.date.access2025-01-27
dc.date.accessioned2025-02-26T10:26:07Z
dc.date.available2025-02-26T10:26:07Z
dc.date.copyright2024-11-18
dc.date.issued2024
dc.description.abstract<jats:p>Activated carbons (ACs) produced from end-of-life tires with different tire pyrolysis char (TPC)-to-activator (KOH) ratios of 1:2, 1:3, and 1:4 were prepared and characterized. These materials were used as adsorbents for the removal of two common chloroorganic water contaminants such as 2,4-dichlorophenol (DCP) and 2,4-dichlorophenoxyacetic acid (2,4-D). The adsorption kinetics, equilibrium adsorption, and effects of solution pH were investigated. The adsorption of both adsorbates was found to be pH-dependent and preferred in acidic environments. The adsorption kinetics was evaluated using pseudo-first-order and pseudo-second-order kinetic models and mechanism - using Weber-Morris and Boyd models. Results demonstrated that the adsorption of DCP and 2,4-D on all ACs followed the pseudo-second-order model and was controlled by film diffusion. The Langmuir isotherm described the equilibrium data better than the Freundlich isotherm model. The maximum adsorption capacity of DCP adsorbed on AC1:2, AC1:3, and AC1:4 at equilibrium was 0.582, 0.609, and 0.739 mmol/g, respectively, while the maximum adsorption capacities for 2,4-D were 0.733, 0.937, and 1.035 mmol/g, respectively. The adsorption rate and efficiency were closely correlated with the porous structure of the tested adsorbents. The results showed that the activated carbons obtained from the scrap of end-of-life tires as raw materials could be used as a low-cost and alternative adsorbent for the removal of chlorinated organic pollutants from water.</jats:p>
dc.description.accesstimeat_publication
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.description.if0,7
dc.description.number4
dc.description.points100
dc.description.reviewreview
dc.description.versionfinal_published
dc.description.volume45
dc.identifier.doi10.24425/cpe.2024.149474
dc.identifier.eissn2300-1925
dc.identifier.issn0208-6425
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/2527
dc.identifier.weblinkhttps://journals.pan.pl/cpe/149474
dc.languageen
dc.pbn.affiliationforestry
dc.relation.ispartofChemical and Process Engineering - Inżynieria Chemiczna i Procesowa
dc.relation.pagese79
dc.rightsCC-BY
dc.sciencecloudnosend
dc.share.typeOPEN_JOURNAL
dc.subject.entire pyrolysis char
dc.subject.enKOH activation
dc.subject.enactivated carbons
dc.subject.enadsorption
dc.subject.enchloroorganic water pollutants
dc.titleKOH-activated tire pyrolysis char as an adsorbent for chloroorganic water pollutants
dc.typeJournalArticle
dspace.entity.typePublication