Influence of synthesis procedures on the preparation of strontium titanate nanoparticles and photocatalytic application for methylene blue degradation

SrTiO3 is a well-known photocatalyst with various applications, such as antibacterial agents, self-cleaning surfaces, and water air conditioning. With the increased environmental pollution, one of most studied perovskite photocatalysts, exhibiting pronounced photocatalytic activity for removing chemical pollutants splitting. In present work, pure Strontium titanate (ST) nanoparticles were successfully prepared using high-energy ball milling Pechini techniques characterized by X-ray diffraction (XRD), thermal gravimetric analysis (TGA), Fourier Transform Infrared spectroscopy (FTIR), scanning transmission electron microscopy, respectively. Structural parameters evaluated Rietveld refinement from XRD data, which confirmed cubic system Pm-3 m space group. Scanning microscope results showed that ST1 samples consisted agglomerated irregular-shaped structures between 20 40 nm, in ST2, particles round-shaped had an average size 150 nm. The obtained used methylene blue (MB) degradation, synthesis methods' influence on catalytic was investigated. studies examining decoloration MB dye reveal function smaller increasing rate reactions. degradation constant (Pechini-synthesized sample) ST2 (high energy milled 0.0145 0.0112 min−1, better demonstrated 93% under solar light simulator. reaction data provided well first-order kinetic model.