Transparent glass-nanocomposites possessing piezoelectric ZnO/Zn2SiO4 nanocrystallites for piezocatalytic dye degradation


Transparent glass nanocomposites comprising piezoelectric ZnO and β-Zn2SiO4 nanocrystallites in 44SiO2-11Al2O3-35ZnO-10K2O (mol%) glass matrix were explored for piezocatalytic dye degradation application. X-ray diffraction and Raman spectroscopy confirmed the crystalline phases of ZnO and β-Zn2SiO4 in glass-nanocomposites samples. Scanning electron microscopy images evidenced the presence of nanocrystals on the surface of glass-nanocomposites samples. UV-visible spectroscopy revealed the adequate transparency of glass-nanocomposites samples. Piezocatalytic dye degradation experiments were performed with the use of glass-nanocomposites piezocatalysts using sonication energy. Glass-nanocomposites samples were optimized for piezocatalytic dye degradation performance as well as transparency through tuning of heat treatments. It was found that the glass-nanocomposite heat-treated at 750℃-2 hr has shown the best piezocatalytic dye degradation performance and higher transparency among other samples heat treated at 750℃-4 hr and 750℃-6 hr.

Moolchand Sharma
Collaborations IIT Mandi, India
More Information