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2D hexagonal yttrium doped SnO2 nanoplatelets for photocatalytic degradation

S. Vallimeena and B. Helina

Department of Physics, St. Xavier’s College (Autonomous) (Affiliated to Manonmaniam Sundaranar University,Tirunelveli), Palayamkottai, India



Received: 29 June 2022  Accepted: 3 November 2022


In this study, simple morphological and structural evolutions of two-dimensional hexagonal nanoplatelets were investigated. XRD analysis of SnO2 and SnO2:Y has revealed a tetragonal structure and photoluminescence spectra exhibited a visible emission broadband peak around 464 nm and 528 nm. The photoluminescence spectra of SnO2:Y (7 wt.%) confirm the increased charge separation, which inhibits electron–hole recombination. Raman spectra  validated the presence of oxygen vacancies in SnO2:Y (7 wt.%) nanoplatelets. It has been shown that hexagonal SnO2:Y (7 wt.%) nanoplatelets perform better in photocatalytic degradation than conventional spherical nanoparticles. EIS measurements were performed to investigate the charge carrier movement of SnO2 and SnO2:Y nanoparticles. Our study is the first to illustrate the two-dimensional morphology of SnO2:Y (7 wt.%) hexagonal nanoplatelets and their application as a photocatalytic material.

Keywords: SnO2:Y; 2D hexagonal nanoplatelets; Photocatalytic degradation

Full paper is available at

DOI: 10.1007/s11696-022-02574-6


Chemical Papers 77 (3) 1683–1693 (2023)

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