Characteristics of Iron Sand Magnetic Material from Bugel Beach, Kulon Progo, Yogyakarta

11th Joint Conference on Chemistry in Conjunction with the 4th Regional Biomaterials Scientific Meeting

材料科学;化学;生物科学

Fahmiati^1,2 ; Nuryono^3 ; Suyanta^3

Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Halu Oleo, Anduonohu Kendari

93232, Indonesia^1

Doctoral Stud. on Chemistry, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta

55281, Indonesia^2

Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta

55281, Indonesia^3

关键词: Chemical compositions;    Crystallinities;    Infrared spectrophotometry;    Iron sand;    Vibrating sample magnetometer;    X ray fluorescence;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/172/1/012020/pdf
DOI  :  10.1088/1757-899X/172/1/012020

来源: IOP

【 摘 要 】

Magnetic material (MM) of iron sands from Bugel Beach, Kulon Progo, Yogyakarta has been prepared and characterized. Magnetic material was separated from iron sands using a permanent magnet followed by treating with sodium hydroxide (NaOH) solution. The magnetic material product was characterized with X-ray Fluorescence, X-ray Diffraction, Fourrier Transform Infrared spectrophotometry, and Vibrating Sample Magnetometer to determine the chemical composition, crystallinity, presence of functional groups and the magnetization, respectively. Results showed that the investigated iron sand contained magnetic materials up to 89.47% (w/w). The main composition of MM included Fe2O3, TiO2, and SiO2, with percentages of 72.6, 7.0, and 10.0%, respectively, and the functional groups of material was dominated with Fe-OH and Fe-O. Treatment with NaOH 4M and NaOH 8M increased the content of Fe2O3and TiO2, otherwise reduced the concentration of SiO2and contributed to the improvement of the magnetization from 42.1 to 44.3 emu/g (with 4 M NaOH) and 64.0 emu/g (with 8 M NaOH). Additionally, MM was dominated with mineral of magnetite and contained functional groups of Fe-OH and Fe-O.