The influence of pH and temperature on the alterations in the structural, optical, electronic, and photocatalytic behavior of TiO2 powder with simultaneous addition of Fe2+ and Fe3+
نویسندگان
1 Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Surakarta, Central Java, Indonesia.
2 Department of Chemistry, Faculty of Mathematics and Natural Sciences, Gadjah Mada University, Sleman, Yogyakarta, Indonesia.
3 Department of Chemistry, Faculty of Mathematics and Natural Sciences, Gadjah Mada University, Sleman, Yogyakarta, Indonesia.
4 Department of Chemistry, Faculty of Mathematics and Natural Sciences, Gadjah Mada University, Sleman, Yogyakarta, Indonesia.
doi
10.22034/crl.2026.561838.1739چکیده
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 TiO2 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, TiO2 crystal composition, crystal size, and band gap, but increase surface area. Meanwhile, the higher temperature synthesis (110 oC) has caused a decrease in magnetic properties, TiO2 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.
