The influence of pH and temperature on the alterations in the structural, optical, electronic, and photocatalytic behavior of TiO_۲ powder with simultaneous addition of Fe^۲+ and Fe^۳+

The simultaneous incorporation of Fe²⁺ and Fe³⁺ ions using co-precipitation methods with variation in pH and temperature has modified the structural, optical, electronic, magnetic, and photocatalytic activity of TiO۲ powder. The characterization of photocatalyst composites had been carried out using spectrophotometry Raman, XRD, SAA, DRS, XPS, and VSM. The higher the pH of the synthesis has caused a decrease in magnetic properties, TiO۲ crystal composition, crystal size, and band gap, but increase surface area. Meanwhile, the higher temperature synthesis (۱۱۰ oC) has caused a decrease in magnetic properties, TiO۲ crystal composition, surface area, but increase crystal size, crystallinity, and band gap. Photocatalyst composites synthesized with higher pH and lower reaction temperature have shown greater photocatalytic activity.

کلیدواژه ها:

TiO₂ powder ، Fe۲+ and Fe۳+ ، pH ، Temperature ، Structural ، optical ، Electronic ، and magnetic Properties ، Photocatalytic