Antifungal Activity of TiO 2 /Ag Nanoparticles under Visible Light Irradiation

Nahzim Rahmat; Endang Tri Wahyuni; Adhitasari Suratman

doi:10.22146/ijc.49150

Antifungal Activity of TiO₂/Ag Nanoparticles under Visible Light Irradiation

https://doi.org/10.22146/ijc.49150

Nahzim Rahmat^(1*), Endang Tri Wahyuni⁽²⁾, Adhitasari Suratman⁽³⁾

(1) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia
(2) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia
(3) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia
(*) Corresponding Author

Abstract

The doping of TiO₂ by Ag(I) from [Ag(S₂O₃)₂]^3– contained in radiophotography wastewater by photoreduction method has been performed. TiO₂/AgNPs photocatalyst was examined for its activity as an antifungal material for the inhibition of C. albicans in water under visible light irradiation. In the doping process, the weight of TiO₂ was varied to obtain TiO₂/AgNPs with different amounts of Ag. The TiO₂/AgNPs samples were characterized by using FTIR, SRUV, TEM, SEM-EDX, and XRD methods. The antifungal test was carried out by disc diffusion method under visible light irradiation, wherein the amount of Ag-doped on TiO₂, the dose of TiO₂/AgNPs, and the irradiation time were optimized. The research results indicated that the antifungal activity of TiO₂/AgNPs in inhibiting C. albicans has been successfully prepared. The highest inhibition was achieved by using 0.5 g/L of TiO₂/AgNPs (I), at 5 h of irradiation time.

Keywords

TiO2/Ag; antifungal; C. albicans; visible light; nanoparticle

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DOI: https://doi.org/10.22146/ijc.49150