Behavior of mesoporous activated carbon used as a remover in Congo red adsorption process

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dc.contributor.authorSaygili, Hasan
dc.contributor.authorGuzel, Fuat
dc.date.accessioned2024-04-24T17:18:32Z
dc.date.available2024-04-24T17:18:32Z
dc.date.issued2018
dc.departmentDicle Üniversitesien_US
dc.description.abstractThe adsorption characteristics of Congo red (CR) dye on activated carbon produced under optimized conditions from tomato paste waste were evaluated. The effects of adsorbent dose, initial dye concentration, contact time, ionic strength and solution temperature on adsorption were investigated. Adsorption kinetic was better described by the pseudo-first order model. Results of the intra-particle diffusion model show that the pore diffusion is not the only rate-limiting step. Adsorption isotherm was well defined by the Langmuir isotherm. The maximum adsorption capacity of the activated carbon was 435 mg g(-1) at 328 K. The dimensionless separation factor RL revealed the favorable nature of the isotherm of the activated carbon-dye system. Adsorption energy was found to be 4.20-4.55 kJ mol(-1) indicating that the mechanism of adsorption is physical in nature. Thermodynamic studies showed that CR adsorption onto activated carbon was feasible, spontaneous and endothermic. Desorption of the used activated carbon was studied using ethanol as solvent and desorption efficiency of 56.4% was obtained after five cycles. The findings indicated that the activated carbon is a very effective and low-cost adsorbent for removal of CR dye from aqueous solutions.en_US
dc.description.sponsorshipScientific Research Fund of Dicle University [12-ZEF-95]en_US
dc.description.sponsorshipThe authors acknowledge the Scientific Research Fund of Dicle University for financial support (Project no. 12-ZEF-95).en_US
dc.identifier.doi10.2166/wst.2018.100
dc.identifier.endpage183en_US
dc.identifier.issn0273-1223
dc.identifier.issn1996-9732
dc.identifier.issue1en_US
dc.identifier.pmid29698232
dc.identifier.startpage170en_US
dc.identifier.urihttps://doi.org/10.2166/wst.2018.100
dc.identifier.urihttps://hdl.handle.net/11468/18817
dc.identifier.wosWOS:000435664600018
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakPubMed
dc.language.isoenen_US
dc.publisherIwa Publishingen_US
dc.relation.ispartofWater Science and Technology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectActivated Carbonen_US
dc.subjectAdsorptionen_US
dc.subjectCongo Red Dyeen_US
dc.subjectTomato Paste Wasteen_US
dc.titleBehavior of mesoporous activated carbon used as a remover in Congo red adsorption processen_US
dc.titleBehavior of mesoporous activated carbon used as a remover in Congo red adsorption process
dc.typeArticleen_US

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