SYSTEMATIC LITERATURE REVIEW SYNTHESIS METHODS IN AFFECTING THE MORPHOLOGY AND MAGNETIC PROPERTIES OF IRON SAND
Keywords:
SLR, Synthesis Method, Iron Sand, Magnetic Properties, MorphologyAbstract
This research focuses on the morphological characteristics and physical properties of iron
sand synthesized using various methods, with the aim of finding the most effective synthesis
method. Iron sand, consisting of minerals such as magnetite, hematite, and ilmenite, has wide
applications in industry. The morphology and physical properties of iron sand, including hardness,
density, thermal conductivity, and magnetic properties, greatly influence the material's
performance in these applications. This research uses a Systematic Literature Review (SLR)
approach by collecting and evaluating literature from the last 10 years, using Publish or Perish 8
software. Synthesis methods compared include solid state reaction (SSR), hydrothermal, sol-gel,
and coprecipitation. The research results show that the coprecipitation method, especially sintering
at a temperature of 400°C, produces the highest magnetic saturation value of 65 emu/g. The solid
state reaction method gave the highest remanence value of 8.72 emu/g, while the coprecipitation
method at a temperature of 120°C achieved the highest coercivity value of 851.68 Oe. For particle
size, the coprecipitation method with ultrasonic irradiation and the use of 9M NaOH was proven to
produce the smallest particle size, namely 20-25 nm. This research concludes that the
coprecipitation method is the most effective in achieving optimal magnetic properties and very
small particle sizes. These findings provide guidance for researchers in selecting synthesis methods
according to specific needs and help the development of new materials with improved properties
for various industrial and technological applications.