Abstract
Three-dimensional (3D) cauliflower-shaped Strontium (Sr)-doped SnO2 nanoparticles were synthesised at ambient temperature through a simple co-precipitation technique. The 3D cauliflower-shaped 7 wt-% Sr-doped SnO2 nanoparticles increase light harvesting features and also promote electron transport across grain boundaries. 3D cauliflower-shaped Sr-doped SnO2 nanoparticles offer low charge transfer resistance, which is validated by the electrochemical impedance spectroscopy spectrum. XRD studies of SnO2 and Sr-doped SnO2 have revealed a tetragonal structure, and PL spectra corroborate the greater charge splitting. This study may be the first ever report on the 3D microstructure of cauliflower-shaped 7 wt-% Sr-doped SnO2 nanoparticles that demonstrated higher photocatalytic activity under visible-light for MB dye solution.
Acknowledgements
The author S. Vallimeena would like to thank Manonmaniam Sundaranar University, Abisekapatti, Tirunelveli-627 012 Tamilnadu, India for undertaking the pre-doctoral degree (Register No. 18221282132007). We also thank the Department of Physics, St. Xavier’s College (Autonomous), Palayamkottai, Tamilnadu for providing facilities for the fulfilment of the research work.
Disclosure statement
No potential conflict of interest was reported by the author(s).
Data availability statement
The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.