Open AccessSynthesis and Characterization of Monetite from Calcium Carbonate Recovered from Carpet Waste
Author(s) -
Kasidit Janbooranapinij,
Arinchai Yimponpipatpol,
Narueporn Ngamthanacom,
Jularpar Suthiprapar,
Gasidit Panomsuwan
Publication year - 2022
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2175/1/012014
Subject(s) - calcium carbonate , fourier transform infrared spectroscopy , phosphoric acid , calcium , chemistry , calcite , combustion , phase (matter) , phosphorus , nuclear chemistry , apatite , mineralogy , inorganic chemistry , materials science , chemical engineering , organic chemistry , engineering
Calcium carbonate (CaCO 3 ) was recovered from the carpet waste by combustion at 500 °C under an air atmosphere. The CaCO3 had a pure calcite phase without detection of other crystalline phases, as confirmed by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) measurements. Dicalcium phosphate (CaHPO4) or monetite, which is known as a family of calcium phosphate-based biomaterials, was synthesized by mixing the CaCO 3 recovered from the carpet waste with phosphoric acid (H 3 PO 4 ) solution. The reaction was kept at a constant temperature of 80 °C for 24 h. The XRD and FTIR results demonstrated that the pure monetite phase was successfully formed by the reaction between CaCO3 and H 3 PO 4 . The energy-dispersive X-ray spectroscopy analysis confirmed that the monetite was composed of calcium, oxygen, and phosphorus. The results obtained in this work revealed that CaCO 3 recovered from carpet waste could potentially be an alternative material for the synthesis of monetite under mild conditions.