Aloe vera-derived Ag-doped TiO2 nanoparticles immobilized by chitosan films for photo(electro)catalytic and antimicrobial functions

Basit Öğe Kaydı
dc.authorid0009–0005-0758–017X
dc.authorid0000–0003-2351–172X
dc.authorid0009–0009-9755–4483
dc.authorid0000–0002-8991–273X
dc.authorid0000–0003-0141–5817
dc.contributor.authorKaba, İbrahim
dc.contributor.authorBozkurt, Rabia Nur
dc.contributor.authorAltıner Kurt, Eda
dc.contributor.authorKerkez Kuyumcu, Özge
dc.contributor.authorKoca, Atıf
dc.date.accessioned2026-01-07T13:24:12Z
dc.date.available2026-01-07T13:24:12Z
dc.date.issued2025
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Kimya Mühendisliği Bölümü
dc.departmentFakülteler, Eczacılık Fakültesi, Eczacılık Meslek Bilimleri Bölümü, Farmasötik Mikrobiyoloji Ana Bilim Dalı
dc.description.abstractIn this study, as an environmentally friendly and sustainable approach, TiO2 nanoparticles (TiO2 NPs) were prepared by green synthesis method using deep eutectic solvent (DES, ChCl/glycerol (1:2)) based Aloe vera leaves extract obtained by Soxhlet extraction. The DES system functioned concurrently as a green solvent and a functional medium, while the bioactive chemicals in the Aloe vera leaves extract operated as natural reducing and stabilizing agents. The produced TiO2 NPs were doped with silver (Ag) at molar ratios of 0.25, 0.50, and 0.75, and immobilized on a chitosan matrix (Ag/TiO2-CS) to facilitate recovery from the reaction media. The materials were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible spectroscopy (UV-Vis), photoluminescence (PL) spectroscopy, scanning electron microscopy-energy dispersive X ray analysis (SEM-EDX) and X-ray photoelectron spectroscopy (XPS). Characterization validated the TiO2 phase, effective Ag incorporation, diminished band gap energy (from 3.34 eV to 2.83 eV), and uniform nanoparticle distribution. PL measurements confirmed that Ag doping reduces carrier charge recombination. The 0.50Ag/ TiO2-CS film displayed the best photocatalytic degradation efficiency for malachite green (93.3 %) under solar irradiation and exhibited a higher photocurrent response relative to undoped TiO2. Moreover, antimicrobial assays demonstrated that 0.50 and 0.75 Ag/TiO2 NPs exhibited significant suppression of S. aureus and E. coli, with low minimum inhibitory concentrations (MIC) (0.40–0.20 µg/mL) and minimum bactericidal concentra tions (MBC), signifying robust bactericidal efficacy. The findings indicate that DES-assisted Aloe vera-mediated synthesis provides an economical and scalable method for producing multifunctional nanocomposites with considerable potential in environmental remediation and biomedical fields.
dc.identifier.citationKaba, İ., Bozkurt, R. N., Altıner Kurt, E., Kerkez Kuyumcu, Ö., & Koca, A. (2025). Aloe vera-derived Ag-doped TiO2 nanoparticles immobilized by chitosan films for photo(electro)catalytic and antimicrobial functions. Journal of Environmental Chemical Engineering, 13(6), pp. 1-16. https://doi.org/10.1016/j.jece.2025.120436
dc.identifier.doi10.1016/j.jece.2025.120436
dc.identifier.endpage16
dc.identifier.issn2213-3437
dc.identifier.issn2213-2929
dc.identifier.issue6
dc.identifier.scopus2-s2.0-105023508529
dc.identifier.scopusqualityQ1
dc.identifier.startpage1
dc.identifier.urihttps://doi.org/10.1016/j.jece.2025.120436
dc.identifier.urihttps://hdl.handle.net/20.500.13055/1234
dc.identifier.volume13
dc.identifier.wosWOS:001630614500001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.indekslendigikaynak.otherSCI-E - Science Citation Index Expanded
dc.institutionauthorBozkurt, Rabia Nur
dc.institutionauthorAltıner Kurt, Eda
dc.institutionauthorid0000–0003-2351–172X
dc.institutionauthorid0009–0009-9755–4483
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofJournal of Environmental Chemical Engineering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectGreen Synthesis
dc.subjectTiO2
dc.subjectMalachite Green
dc.subjectPhoto(Electro)Catalytic
dc.titleAloe vera-derived Ag-doped TiO2 nanoparticles immobilized by chitosan films for photo(electro)catalytic and antimicrobial functions
dc.typeArticle
dspace.entity.typePublication

Dosyalar

Orijinal paket
Listeleniyor 1 - 1 / 1
Kapalı Erişim
İsim:
Tam Metin / Full Text.pdf
Boyut:
11.06 MB
Biçim:
Adobe Portable Document Format
İndir
Lisans paketi
Listeleniyor 1 - 1 / 1
Kapalı Erişim
İsim:
license.txt
Boyut:
1.17 KB
Biçim:
Item-specific license agreed upon to submission
Açıklama:
İndir

Koleksiyon

Kimya Mühendisliği Bölümü Koleksiyonu
Farmasötik Mikrobiyoloji Ana Bilim Dalı Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu
WoS İndeksli Yayınlar Koleksiyonu