Photocatalytic Activity of Natao3 Nanoparticles Synthesized by Facile Hydrothermal Method for the Degradation of Diazo Evans Blue Dye

Abstract

In this study, NaTaO₃ nanoparticles (NPs) were synthesized by a simple one step hydrothermal method. XRD, FTIR, FESEM, EDS, TEM, elemental mapping, UV-Vis, and PL spectroscopy were used to assess the structural clarity, particle size, shape, porosity features, and optical properties of the NaTaO₃ NPs. The findings indicated that pure-phase NaTaO₃ could be synthesized using 10 M NaOH solution at 150 ⁰C for 24 h. NaTaO₃ NPs exhibits significant photodegradation activity for Evans blue dye. The photocatalyst have been optimized for multiple photocatalytic degradation factors, such as pH, catalyst load effect, and dye starting concentration variation. The synthesised photocatalyst shows 97% degradation capacity for Evans blue dye. According to the study, the catalyst is photostable because it is used for nearly four cycles and it shows satisfactory dye degradation efficiency.