Facile hydrogen peroxide modification of activated carbon particles produced by potassium hydroxide activation for removal of heavy metals from aqueous solutions

Basit Öğe Kaydı
dc.authoridTEGIN, IBRAHIM/0000-0002-5661-7195
dc.contributor.authorMurtazaoglu, Cetin
dc.contributor.authorTegin, Ibrahim
dc.contributor.authorSaka, Cafer
dc.date.accessioned2024-12-24T19:27:01Z
dc.date.available2024-12-24T19:27:01Z
dc.date.issued2023
dc.departmentSiirt Üniversitesi
dc.description.abstractHere, the activated carbon (AC) was first produced by potassium hydroxide (KOH) activation from pistachio shells. Subsequently, the obtained AC was modified with hydrogen peroxide (H2O2) activation. Cu (II) and Zn (II) ions adsorption using the KOH-AC-H2O2 was carried out from wastewater. The correlation coefficient (R2) values in the adsorption of KOH-AC-H2O2 and Cu (II) and Zn (II) showed compliance with the Langmuir isotherm model. The maximum adsorption capacities (Qm) with Cu (II) and Zn (II) from the Langmuir isotherm model at 30 degrees C for KOH + AC-H2O2 were 212.76 mg/g and 12.00 mg/g, respectively. The pHpzc of the H2O2-modified adsorbent was 7.58. However, the pHpzc of the KOH-AC adsorbent was 8.82 The resulting KOH-AC and KOH-ACH2O2 samples were characterized by X-Ray diffraction (XRD), thermogravimetric/differential (TG-DTA), scanning electron microscope (SEM), Fourier transforms infrared spectroscopy (FTIR), energy dispersive spectroscopy (EDS), and nitrogen adsorption/desorption analyses. SEM analyses confirmed that the surface of the AC samples obtained was highly porous. At the same time, FTIR and EDS analyses showed the formation of oxygenated groups on the AC surface. In the kinetic experiments, the pseudo-second-order model was suitable for the adsorption of Cu (II) and Zn (II). The low-cost and environmentally friendly adsorbent obtained as a result of the modification of H2O2 with KOH-AC has improved the removal ability of heavy metals.
dc.description.sponsorshipSiirt University Scientific Research Coordinator [2021-SIUEFEB-021]
dc.description.sponsorshipThe study was supported by Siirt University Scientific Research Coordinator (2021-SIUEFEB-021).
dc.identifier.doi10.1016/j.diamond.2023.110049
dc.identifier.issn0925-9635
dc.identifier.issn1879-0062
dc.identifier.scopus2-s2.0-85163293624
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.diamond.2023.110049
dc.identifier.urihttps://hdl.handle.net/20.500.12604/6460
dc.identifier.volume136
dc.identifier.wosWOS:001015422400001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Sa
dc.relation.ispartofDiamond and Related Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241222
dc.subjectPistachio shells
dc.subjectActivation carbon
dc.subjectHydrogen peroxide modification
dc.subjectHeavy metal
dc.subjectAdsorption
dc.titleFacile hydrogen peroxide modification of activated carbon particles produced by potassium hydroxide activation for removal of heavy metals from aqueous solutions
dc.typeArticle

Dosyalar

Koleksiyon

WOS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu