Usability of spent Salvia officinalis as a low-cost adsorbent in the removal of toxic dyes: waste assessment and circular economy

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dc.authorid0000-0003-2472-9077en_US
dc.authorid0000-0002-9609-0439en_US
dc.contributor.authorBingül, Züleyha
dc.contributor.authorAdar, Elanur
dc.date.accessioned2021-08-10T08:54:29Z
dc.date.available2021-08-10T08:54:29Z
dc.date.issued2021
dc.departmentAÇÜ, Mühendislik Fakültesi, Çevre Mühendisliği Bölümüen_US
dc.description.abstractThe removal of methylene blue (MB) and maxilon yellow (MY) dyes from aqueous solutions was investigated by an adsorption process using spent Salvia officinalis (SSO) for the first time. The operating conditions and mechanisms for the MB-SSO and MY-SSO adsorption systems were determined. FTIR-ATR and SEM-EDAX analyses were also performed to characterise the adsorbent. Optimum conditions in each system were similarly obtained, excluding pH (5.7 for MB and 6.5 for MY). The dye removal efficiency was 78% for MB and 56% for MY. It was observed that experimental data fits Freundlich isotherm (R2 ? 0.97) and pseudo-second-order kinetic (R2 ? 0.99) model in both systems. The maximum adsorption capacities of SSO for MB and MY dyes were determined as 16.53 and 11.79 mg g?1, respectively. The pseudo-second-order kinetic model revealed that adsorption efficiency was affected by a number of active sites on the adsorbent and the concentration of the dye. The thermodynamic parameters confirmed that adsorption was spontaneous, exothermic and physisorption in both adsorption systems. The results indicate that SSO can be used as a promising adsorbent material for removal of MB and MY dye from aqueous solutions. However, in order to remove high dye concentrations, SSO must be activated.
dc.identifier.citationBingul, Z., & Adar, E. (2021). Usability of spent Salvia officinalis as a low-cost adsorbent in the removal of toxic dyes: waste assessment and circular economy. International Journal of Environmental Analytical Chemistry,en_US
dc.identifier.doi10.1080/03067319.2021.1949588
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://hdl.handle.net/11494/3318
dc.identifier.volumeArticle in presen_US
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorAdar, Elanur
dc.language.isoenen_US
dc.publisherTaylor & Francis Incen_US
dc.relation.ispartofInternational Journal of Environmental Analytical Chemistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSpent Salvia officinalisen_US
dc.subjectToxic dyesen_US
dc.subjectLow-cost adsorbenten_US
dc.subjectWaste assessmenten_US
dc.subjectCircular economyen_US
dc.titleUsability of spent Salvia officinalis as a low-cost adsorbent in the removal of toxic dyes: waste assessment and circular economyen_US
dc.typeArticle

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