Journal of Physical Studies 28(1), Article 1801 [9 pages] (2024)
DOI: https://doi.org/10.30970/jps.28.1801

OPTICALLY ACTIVE TiO2 FILMS FABRICATED BY SPIN COATING METHOD FOR METHYLENE BLUE PHOTOREMEDIATION

Vicran Zharvan{1} , Gatut Yudhoyono{2} , Darminto{2} 

{1}Laboratory of Materials Physics, Department of Physics, Universitas Negeri Makassar, Indonesia,
e-mail: vicran.zharvan@unm.ac.id
{2}Department of Physics, Institut Teknologi Sepuluh Nopember, Indonesia

Received 05 July 2023; in final form 16 January 2024; accepted 31 January 2024; published online 26 March 2024

The spin-coating process was used to create the TiO2 layer successfully. The TiO2 film was created by dissolving TiO2 nanopowder in terpineol and ethylcellulose, and then spin coating it onto the corning glass. The films' shape, phase, and optical properties were then determined using SEM, XRD, and UV-Vis. Photocatalytic measurements of TiO2 films were performed using a UV lamp to irradiate a 12 mg/l methylene blue solution for 5 hours. According to the results, all TiO2 films feature an anatase phase with crystallite size values ranging from 5.55 nm to 6.94 nm and an absorbance region near the UV range. The best photocatalytic activity was found in a film containing TiO2 particles that had been stirred for 5 hours with the value of constant rate of discoloration dye 0.0032/min.

Key words: TiO2, anatase, thin-film, photocatalyst.

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