PENGARUH VARIASI SUHU TERHADAP SINTESIS DAN KARAKTERISASI PARTIKEL MAGNETIK PASIR SUNGAI ROKAN DENGAN METODE KOPRESIPITASI

Abstract

Investigation of natural sand originating from the Rokan river in Riau Province by turning it into magnetic iron oxide nanoparticles to determine changes in its particle structure has been carried out. Before the natural sand synthesis process is carried out, it is processed using an Iron Sand Separator (ISS) and a Neodymium Iron Boron (NdFeB) magnet to separate magnetic and non-magnetic particles, so the result is called an ISS product. The product is then synthesized using the coprecipitation method using HCl, NH4OH, and PEG-6000 as polymers with variations in temperature at the sonication stage, namely 50℃; 65℃; and 80℃ are characterized using X-Ray Diffraction (XRD). The XRD test results produced a magnetite (Fe3O4) phase with a cubic crystal structure. Crystal size is calculated using the Scherrer Equation where the average crystal size is 39.2 nm; 36.2nm; and 29.9 nm.