Photocatalytic Activity of Ag/TiO2 Composite Synthesized Using Aqueous Plant Extract from Mirabilis jalapa for Degradation of Rhodamine B Under Visible Light

Tunas Alam; Frida Octavia Purnomo; Muhammad Jihad Madiabu; Dicky Annas; Ardy Tanfil. T

doi:10.21743/pjaec/2023.12.05

Authors

Tunas Alam Department of Pharmacy, STIKes Prima Indonesia, Bekasi, Indonesia Author
Frida Octavia Purnomo Department of Pharmacy, Faculty of Sciences and Technology, Binawan University, Jakarta, Indonesia Author
Muhammad Jihad Madiabu Department of Analytical Chemistry, Politeknik AKA Bogor, Indonesia Author
Dicky Annas Research Center for Chemistry, National Research and Innovation Agency (BRIN), B.J. Habibie Science and Technology Area, South Tangerang, Indonesia Author
Ardy Tanfil. T Department of Pharmacy, STIKes Prima Indonesia, Bekasi, Indonesia Author

DOI:

https://doi.org/10.21743/pjaec/2023.12.05

Keywords:

Ag/TiO2, Green synthesis, Mirabilis jalapa, Photocatalytic activity, Rhodamine B

Abstract

In this study, aqueous plant extract from Mirabilis jalapa has been used for the synthesis of Ag/TiO₂ utilizing a green synthesis method. UV-Vis analysis revealed a Surface Plasmon Resonance (SPR) band at 461 nm, indicating that silver nanoparticles had formed. The anatase phase of TiO₂ and the presence of silver could be seen in the X-ray diffraction (XRD) patterns. Scanning Electron Microscope (SEM) images for Ag and TiO₂ show cuboid and irregular shapes, respectively. The photocatalytic activity of material (Ag/TiO₂) was analyzed in the degradation of Rhodamine B under visible light irradiation with various concentrations of silver that were labelled as PT (pure TiO₂), Ag1T, Ag2T, Ag3T, and Ag4T. The photocatalytic activity indicated that Ag2T has the highest catalytic activity among all catalysts after 240 minutes of reaction time. Furthermore, this study provides Ag/TiO₂ composite act as a promising candidate to resolve environmental problems