Effectiveness Study of Using HAp Milkfish Bone to Synthesize Ag₃PO₄ with Ion-Exchange Method for Methylene Blue Degradation

Abstract:

The development of Ag₃PO₄ photocatalyst for dye waste treatment is necessary because of its superiority compared to other materials. In this research, Ag₃PO₄ was synthesized with AgNO₃ and HAp from milkfish bones. Syntesis was done by simple ion-exchange method. In this research, composition of AgNO₃:HAp are 1:0.1; 1:0.3; and 1:0.5 to determine the optimum composition. Based on XRD results, it shows that ion-exchange process between phosphate ions from HAp milkfish bones and Ag+ from AgNO₃ was imperfect. It was shown from the presence of HAp peaks in synthesis results. Furthermore, the diffraction pattern showed that AgNO₃:HAp 1:0.1 composition has the best cristalinity. Based on SEM characterization, it shows that all compositions have majority shape as spherical and small part at AgNO₃/HAp 1:0.5 composition has nanorod morphology. It was also known that material with composition of AgNO₃:HAp 1:0.1; 1:0.3 and 1:0.5 have average size are 100.76 nm, 92.31 nm and 107.51. From UV-Vis spectroscopy data processing, it represent the value of direct band gap of material is 3.83 eV and the value of indirect band gap is 3.6 eV. It also shows the degradation value of methylene blue with the best value was shown in AgNO₃:HAp 1:0.3 composition with 47.4%.

• Periodical: Key Engineering Materials (Volume 920)
• Pages: 14-21
• DOI: https://doi.org/10.4028/p-ksfb64
• Online since: May 2022
• Authors: Mohammad Wahyu Andriyan*, Zalfa Alfatinnisa, Desi Patmala, Faizul Muna Amalia, Angel Shinta, Agus Subagio
• Keywords: Ag₃PO₄, HAp Milkfish Bone, Ion-Exchange Method, Methylene Blue, Photocatalyst

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