Morphological, Crystal Characterization, and Magneto-Thermal of Superparamagnetic Iron Oxide Nanoparticles (SPION) from Natural Sand based Coprecipitation Sono-Chemical Kormil Saputra 1,4, Wida Puteri Agista 2,3, Indrawan Eka Badri 1, Teguh Ardianto 1, Dian W. Kurniawidi 1, Masruroh Masruroh 4,*, Didik Rahadi Santoso 4 Ahmad Taufiq 2
1 Physics Study Program, Universitas Mataram, Jl. Majapahit No.62, Gomong, Kec. Selaparang, Mataram, Nusa Tenggara Barat. 83115, Indonesia
2 Physics Department, Universitas Negeri Malang, Jl. Cakrawala No.5, Sumbersari, Lowokwaru District, Malang City, East Java, Indonesia
3 Tinta Emas Institute, Jl. Sultan Salahuddin No.23, Sekarbela District, Mataram, Nusa Tenggara Barat, 83115, Indonesia
4 Physics Department, Brawijaya University, Jl. Veteran No.10-11, Ketawanggede, Lowokwaru District, Malang City, East Java, 65145, Indonesia
Abstract
Superparamagnetic Iron Oxide Nanoparticles (SPION) have been widely studied for biomedical applications, especially in the field of imaging and cancer therapy. However, studies on the magneto-thermal characteristics of SPION synthesized from natural sources such as iron sand are still limited, especially related to the heating efficiency in an alternating magnetic field. This study has successfully synthesized magnetite-based SPION from natural sand using a sonochemical coprecipitation method, combined with polyaniline and activated carbon to improve magneto-thermal performance. The characterization results using SEM showed nanoparticle morphology with a size between 103.32-121.23 nm. FTIR analysis confirmed the presence of Fe-O functional groups in tetrahedral and octahedral positions, as well as the presence of hydroxyl groups. XRD showed a crystalline structure of magnetite with a crystallite size of 22.6 nm based on the Scherrer method and Rietveld analysis. The UV-Vis spectrum shows two characteristic absorption peaks and a direct band gap value of 2.10 eV and an indirect band gap of 3.24 eV. Magneto-thermal testing shows a temperature increase of up to 13oC under the influence of an alternating magnetic field, indicating the great potential of this material in cancer hyperthermia therapy applications.
Keywords: SPION- Iron Sand- Sono-Chemical Coprecipitation- Magneto-Thermal
