Ultrasonic-assisted photocatalytic degradation of various organic contaminants using ZnO supported on a natural polymer of sporopollenin

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dc.contributor.authorYekan Motlagh, Parisa
dc.contributor.authorVahid, Behrouz
dc.contributor.authorAkay, Sema
dc.contributor.authorKayan, Berkant
dc.contributor.authorYoon, Yeojoon
dc.contributor.authorKhataee, Alireza
dc.date.accessioned2023-09-29T06:35:49Z
dc.date.available2023-09-29T06:35:49Z
dc.date.issued2023
dc.departmentSabire Yazıcı Fen Edebiyat Fakültesi
dc.description.abstractWater resource pollution by organic contaminants is an environmental issue of increasing concern. Here, sporopollenin/zinc oxide (SP/ZnO) was used as an environmentally friendly and durable catalyst for sonophotocatalytic treatment of three organic compounds: direct blue 25 (DB 25), levofloxacin (LEV), and dimethylphtalate (DMPh). The resulting catalyst had a 2.65 eV bandgap value and 9.81 m2/g surface area. The crystalline structure and functional groups of SP/ZnO were confirmed by X-ray diffraction (XRD) and Fourier transforms infrared spectroscopy (FTIR) analyses. After 120 min of the sonophotocatalysis, the degradation efficiencies of DB 25, LEV, and DMPh by SP/ZnO were 86.41, 75.88, and 62.54%, respectively, which were higher than that of the other investigated processes. The role of reactive oxygen species were investigated using various scavengers, enhancers, photoluminescence, and o-phenylenediamine. Owing to its stability, the catalyst exhibited good reusability after four consecutive cycles. In addition, the high integrity of the catalyst was confirmed by scanning electron microscopy (SEM), XRD, and FTIR analyses. After four consecutive examinations, the leaching of zinc in the aqueous phase was < 3 mg/L. Moreover, gas chromatography-mass spectrometry (GC–MS) analyses indicated that the contaminants were initially converted into cyclic compounds and then into aliphatic compounds, including carboxylic acids and animated products. Thus, this study synthesized an environmentally friendly and reusable SP/ZnO composite for the degradation of various organic pollutants using a sonophotocatalytic process.
dc.identifier.doi10.1016/j.ultsonch.2023.106486
dc.identifier.pmid37352731
dc.identifier.scopusqualityQ1
dc.identifier.urihttps:/dx.doi.org10.1016/j.ultsonch.2023.106486
dc.identifier.urihttps://hdl.handle.net/20.500.12451/11009
dc.identifier.volume98en_US
dc.identifier.wosWOS:001035739300001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherElsevier B.V.
dc.relation.ispartofUltrasonics Sonochemistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectNanocatalyst
dc.subjectOrganic Pollutants
dc.subjectSonophotocatalytic Process
dc.subjectSporopollenin
dc.subjectZinc Oxide
dc.titleUltrasonic-assisted photocatalytic degradation of various organic contaminants using ZnO supported on a natural polymer of sporopollenin
dc.typeArticle

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