The Effect of Acidity and Rotation Speed in Titanium Dioxide Synthesize Process

Abstract:

The aims of this study are to analyze the effect of acidity and rotational speed in the synthesis of TiO₂ using the sol-gel method and to analyze the morphology of synthesized TiO2 nanoparticles and commercial TiO₂ using XRD to produce semiconductors for Dye-Sensitized Solar Cell (DSSC) applications. The sol-gel method was used to synthesize TiO₂ Nanoparticles. Titanium tetra-isopropoxide (TTIP) was used as a precursor with the variable of the magnetic stirrer rotation speed of 500, 1000 and 1500 rpm. Acidification was achieved by adding acetic acid to Sol-gel solution to produce a pH number of 1, 2, and 3. Nanomaterial was observed with an optical microscope and X-ray Powder Diffraction (X-RD) to determine the morphology and phase of TiO₂ crystalline. The results showed that the rotational speed and acidity level of the Sol-gel solution ware played an important role to get the best form of a nanoparticle. At a rotation speed of 1500 rpm with pH 3 and 1000 rpm with pH 2 ware shown characteristics similar to commercial TiO₂. In addition to that, the results of XRD characterization of synthesized TiO2 was shown a crystal phase of anatase structure with 18,046 nm crystal size compared to commercial TiO₂ with anatase structure and crystal size of 15,554 nm.

• Periodical: Key Engineering Materials (Volume 867)
• Pages: 48-53
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.867.48
• Online since: October 2020
• Authors: Andi Erwin E. Putra, Hairul Arsyad, Novriany Amaliyah, Humam Eddy Prabowo, Azwar Hayat*
• Keywords: Dye-Sensitized Solar Cells, Sol-Gel, XRD

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