Structural Characterization of SnO2-rGO Heterogeneous Photocatalyst with Enhanced Antimicrobial Properties

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dc.authorid0000-0002-9700-095X
dc.authorid0000-0003-1886-8687
dc.contributor.authorShoukat, Maham
dc.contributor.authorRao, Komal Ali
dc.contributor.authorMazhar, Muhammad Ehsan
dc.contributor.authorBilal, Muhammad
dc.contributor.authorKanwal, Iqra
dc.contributor.authorGhanazfar, Sadia
dc.contributor.authorAsghar, Bushra
dc.date.accessioned2026-02-08T15:14:50Z
dc.date.available2026-02-08T15:14:50Z
dc.date.issued2025
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractThe integration of SnO2 nanoparticles (NPs) with reduced graphene oxide (rGO) offers a unique approach for antimicrobial applications and photocatalytic degradation of organic contaminants. In this study, binary heteronanostructures were synthesized via a hydrothermal method using 2 and 4 wt% rGO. Optical properties, crystallinity, IR spectra, and surface morphology, along with elemental configuration, were characterized through DRS, XRD, FTIR, SEM, and EDX techniques. A progressive reduction in the bandgap (Eg) was observed for SnO2-rGO-A (2 wt%) and SnO2-rGO-B (4 wt%) BNCs as compared to pure SnO2 NPs, i.e., from 3.6 to 3.30 eV and then to 3.25 eV, respectively. The narrow band gap near UV region, suggested enhanced light-harvesting capacity. Photocatalytic efficiency was evaluated under visible light in a photocatalytic reactor using a 200 W Xe lamp as the irradiation source, with methylene blue (MB) dye as the target pollutant. SnO2-rGO-B BNCs showed the highest photodegradation efficiency (97%), followed by SnO2-rGO-A (91%) and SnO2 NPs (64%). Antibacterial evaluation against Staphylococcus aureus revealed highest zone of inhibition (ZOI) at a 10 mg/L sample concentration, with SnO2-rGO-B exhibiting the most potent activity. The results show that rGO improves photocatalytic and antibacterial performance, making the composite suitable for environmental and antimicrobial applications.
dc.description.sponsorshipBahauddin Zakariya University; Bahauddin Zakariya University, Multan, Pakistan
dc.description.sponsorshipThe authors are highly thankful to Bahauddin Zakariya University, Multan, Pakistan for financial support.
dc.identifier.doi10.1002/slct.202501082
dc.identifier.issn2365-6549
dc.identifier.issue28
dc.identifier.scopus2-s2.0-105011479905
dc.identifier.scopusqualityQ3
dc.identifier.urihttps://doi.org/10.1002/slct.202501082
dc.identifier.urihttps://hdl.handle.net/20.500.12885/5463
dc.identifier.volume10
dc.identifier.wosWOS:001532509800001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley-V C H Verlag Gmbh
dc.relation.ispartofChemistryselect
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzWOS_KA_20260207
dc.subjectAntibacterial
dc.subjectBand gap
dc.subjectBinary nanocomposites
dc.subjectPhotocatalysts
dc.subjectTin oxide
dc.subjectGraphene oxide
dc.titleStructural Characterization of SnO2-rGO Heterogeneous Photocatalyst with Enhanced Antimicrobial Properties
dc.typeArticle

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