• Dr. S. AKILANDESWARI
• G. RAJESH
• Dr. D. GOVINDARAJAN

In this present work, ZrO2 NPs were fabricated by a chemical precipitation process under different calcined at 400, 500, 600, 700 and 800oC respectively. The prepared ZrO2 samples were characterized for their thermal, structural, photocatalytic, morphological, chemical compositions photoluminescence and optical properties. The thermogravimetric and differential thermal analysis (TG-DTA) results showed evidence of ZrO2 crystalline formation below 400oC. X-ray diffraction profiles revealed ZrO2 tetragonal structural planes without significant changes up to 800oC. UV-DRS studies suggested that ZrO2 nanoparticles demonstrated blue shift with a reduction in both absorption edges and energy band gap (Eg). From the spectrum strong peak 337 nm due to near band edge emissions. The optimum level of ZrO2 NPs (600oC) was subjected to further characterization by Field emission scanning electron microscopy (FESEM), and Fourier transform infrared spectroscopy (FT-IR). The Photocatalytic behavior of t-ZrO2 nanoparticles (600oC) was analyzed against hazardous Methyl violet and Methyl blue dyes.

Zirconium Oxide, Methyl violet, Methyl blue, Photocatalytic application.

"Efficacy of calcination on the optical, structural and photocatalytic properties of Zirconium Oxide via facile precipitation method", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 10, page no.575-585, October-2018, Available :http://www.jetir.org/papers/JETIR1810697.pdf

"Efficacy of calcination on the optical, structural and photocatalytic properties of Zirconium Oxide via facile precipitation method", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 10, page no. pp575-585, October-2018, Available at : http://www.jetir.org/papers/JETIR1810697.pdf