Fotodegradasi Rhodamin B Menggunakan Komposit Perak Fosfat- Hidroksiapatit dari Tulang Ikan Cakalang (Katsuwonus pelamis)

Lusiana Eka Sari (Department of Chemistry, Faculty of Mathematics and Natural Sciences Sam Ratulangi University, Manado, Indonesia)
Audy D. Wuntu (Department of Chemistry, Faculty of Mathematics and Natural Sciences Sam Ratulangi University, Manado, Indonesia)
Max R.J. Runtuwene (Department of Chemistry, Faculty of Mathematics and Natural Sciences Sam Ratulangi University, Manado, Indonesia)
Lidya Irma Momuat (Department of Chemistry, Faculty of Mathematics and Natural Sciences Sam Ratulangi University, Manado, Indonesia)

Jurnal Ilmiah Sains
Volume 23 Nomor 2, Oktober 2023

Hydroxyapatite (HAp) treated with silver would produce silver phosphate (Ag3PO4), which is a semiconducting material and can degrade synthetic dyes. This study aimed to synthesize a composite material with the main components of HAp from skipjack (Katsuwonus pelamis) bone and Ag3PO4 used to degrade the synthetic dye Rhodamin B (RB) in aqueous solution. The resulting material was characterized using X-Ray Diffraction (XRD), Scanning Electron Microscopy with Energy-Dispersive X-Ray (SEM-EDX), and Fourier Transform Infrared (FTIR) Spectroscopy. The photodegradation of Rhodamine B was evaluated under visible light irradiation with variations in the number of composites, irradiation intensity, and irradiation time. Characterization results showed the formation of Ag3PO4/HAp composites, and photodegradation tests showed that the higher the amount of photocatalyst used and the higher the light intensity, the more synthetic dyes were degraded. Keywords: Ag3PO4; photodegradation; hydroxyapatite; rhodamine B; skipjack tuna bone