ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

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

E-mail: valliabhi09@gmail.com

Received: 29 June 2022  Accepted: 3 November 2022

Abstract:

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 www.springerlink.com.

DOI: 10.1007/s11696-022-02574-6

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