Materials (Nov 2022)

Effect of Poling on Multicatalytic Performance of 0.5Ba(Zr<sub>0.2</sub>Ti<sub>0.8</sub>)O<sub>3</sub>-0.5(Ba<sub>0.7</sub>Sr<sub>0.3</sub>)TiO<sub>3</sub> Ferroelectric Ceramic for Dye Degradation

  • Akshay Gaur,
  • Shivam Dubey,
  • Zainab Mufarreh Elqahtani,
  • Samia ben Ahmed,
  • Mohammed Sultan Abdulghaffar Al-Buriahi,
  • Rahul Vaish,
  • Vishal Singh Chauhan

DOI
https://doi.org/10.3390/ma15228217
Journal volume & issue
Vol. 15, no. 22
p. 8217

Abstract

Read online

Ferroelectric materials with a spontaneous polarization are proven to be potential multicatalysts in water remediation applications. The composition of 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Sr0.3)TiO3 (BST-BZT) was examined for photocatalysis, piezocatalysis, and piezo-photocatalysis processes by degrading an azo dye named methylene blue (MB). Generally, dis-aligned dipoles restrict the catalytic activities due to which the BST-BZT powder sample was poled by the corona poling technique. Coupled piezocatalysis and photocatalysis process, i.e., the piezo-photocatalysis process has shown maximum dye degradation. There was a significant improvement in degradation efficiency by using a poled BST-BZT sample compared to the unpoled sample in all processes, thus the results suggest an extensive scope of poled ferroelectric ceramic powder in the catalysis field.

Keywords