Basic Characteristics Teeth Whitening of TiO2 from Tulungagung Sand Modification of Polydopamine
Lydia Rohmawati, Angela Arin Pratama, Devi Ragita Putri Pratiwi, Fitria Tahta Alfina, Woro Setyarsih, Munasir

Universitas Negeri Surabaya

Abstract

The use of high concentrations of H2O2 in teeth whitening harms the health of teeth and gums. For this reason, an alternative is needed to minimize these adverse effect, namely by using TiO2 material modified with polydopamine as teeth whitening. This TiO2 material can be obtained from extraction of Tulungagung sand using the leaching method. Then the TiO2 was added with Dopamine Hydrochloride, and then it was ultrasonicated for 3 minutes and incubated at 90C. After that, the sample was centrifuged at 4000rpm, and a precipitate was obtained. The residue was dried at 80C, and XRD and FTIR characterized the results. The analysis showed that the polydopamine modified TiO2 had an anatase phase. It had the characteristics of TiO2 with Ti-O-Ti functional groups, Ti-O, Ti-O-O at absorption peak of 821 to 522 cm-1. With the identification of the essential characteristics of polydopamine modified TiO2, it is hoped that later it can be applied as an effective and safe teeth whitener for healthy gums and teeth.

Keywords: Teeth whitening, TiO2, Polydopamine, Leaching, Tulungagung Sand

Topic: Physics