Effect of heat treatment to the morphology of TiO2 powders via hydrolysis route

Suhaimi, Muhammad Faris Amir (2021) Effect of heat treatment to the morphology of TiO2 powders via hydrolysis route. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Titanium dioxide (TiO2) is at the forefront of extensive research into the production of effective photocatalysts. Among the many applicants for photo-catalytic applications, TiO2 is almost the only substance suitable for the coating industrial use because of its strong balance between efficient photoactivity, high stability and low cost. TiO2 undergoes a phase transformation from anatase structure to rutile structure at higher temperature. Other than that, the rutile structure is a must to avoid because the rutile structure is not as stable as anatase structure. In this research, the titanium dioxide (TiO2) powder will be produced from titanyl sulphate (TiOSO4) raw materials via hydrolysis route. The ratio between the TiOSO4 and distilled water is 1:9 and the synthesizes is carry out at 8 hours’ time. The TiO2 powder is undergoes heat treatment at 3 different temperatures which is 200°C, 300°C and 400°C for 1 hour. The heat treated and non-heat-treated sample is further characterized using XRD. The aim is to evaluate the effect of heat treatment at different temperatures to the morphology and physical properties of the TiO2 powders. The XRD results shows that the crystallite size measured at highest peak. It also shows that the TiO2 is remained anatase phase at all studied temperature.

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