Comparison of H3PO4 and ZnCl2 Activated Filtered Coffee Waste Carbon-Based Adsorbents in Methylene Blue Removal by Using Ultrasonic-Assisted Adsorption

Basit Öğe Kaydı
dc.contributor.authorCifci, Deniz Izlen
dc.contributor.authorAydin, Nesli
dc.date.accessioned2024-09-29T15:54:44Z
dc.date.available2024-09-29T15:54:44Z
dc.date.issued2023
dc.departmentKarabük Üniversitesien_US
dc.description.abstractIn sustainable waste management, reusing coffee waste such as husks or spent coffee grounds helps convert a huge amount of waste into a new resource. In this study, H3PO4-activated filter coffee waste (H3PO4-FCW) and ZnCl2-activated filter coffee waste (ZnCl2-FCW) were synthesised, and the characterisation of them was revealed by SEM, EDAX, FTIR and XRD analyses. Adsorption isotherms (Langmuir, Freundlich, Temkin and Dubinin-Radushkevich), adsorption kinetics (Elovich, pseudo-second-order kinetics, pseudo-first-order kinetics including error functions) and adsorption thermodynamics were determined and the effect of parameters such as pH, adsorbent dose, initial methylene blue (MB) concentration, adsorption time and temperature on MB removal was evaluated by the ultrasonic-assisted adsorption. It was observed that ultrasonic-assisted adsorption was more suitable for the Langmuir isotherm for both adsorbents and that the adsorption kinetics was better suited to the pseudo-second-order kinetics. In addition, the ultrasonic-assisted adsorption using H3PO4-FCW and ZnCl2-FCW occurred endothermically and the adsorption mechanism was physisorption. MB removal with ZnCl2-FCW could reach over 90% when pH is between 3 and 7 in the ultrasonic-assisted adsorption process. The maximum adsorption capacity was obtained as 42.7 mg/g and 106.4 mg/g for H3PO4-FCW and ZnCl2-FCW, respectively. It was seen that the q(max) value of ZnCl2-FCW was 2.5 times higher than the q(max) of H3PO4-FCW. Moreover, reusability studies showed that MB removal of over 90% could be achieved in the 2(nd) use of H3PO4-FCW and ZnCl2-FCW. In conclusion, high dye removal could be achieved by synthesising low-cost adsorbents. The use of filtered coffee wastes in the adsorption of basic dyes such as MB is, therefore, important in terms of both waste reduction and management.en_US
dc.identifier.doi10.1007/s13369-022-07248-9
dc.identifier.endpage8653en_US
dc.identifier.issn2193-567X
dc.identifier.issn2191-4281
dc.identifier.issue7en_US
dc.identifier.scopus2-s2.0-85138107937en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage8641en_US
dc.identifier.urihttps://doi.org/10.1007/s13369-022-07248-9
dc.identifier.urihttps://hdl.handle.net/20.500.14619/4243
dc.identifier.volume48en_US
dc.identifier.wosWOS:000854667600002en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringer Heidelbergen_US
dc.relation.ispartofArabian Journal For Science and Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAdsorption isothermen_US
dc.subjectAdsorption kineticsen_US
dc.subjectBasic dyeen_US
dc.subjectError functionsen_US
dc.subjectUltrasonic-assisted adsorptionen_US
dc.titleComparison of H3PO4 and ZnCl2 Activated Filtered Coffee Waste Carbon-Based Adsorbents in Methylene Blue Removal by Using Ultrasonic-Assisted Adsorptionen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu