Darminto, Mochamad Zainuri, Triwikantoro, Suminar Pratapa : Synthesis of nano-forsterite powder by making use of natural silica sand

Prof. Dr. Drs. Darminto M.Sc
Drs. Mochamad Zainuri M.Si.
Dr.rer.nat. Triwikantoro M.Sc.
Prof. Drs. Suminar Pratapa M.Sc., Ph.D.



Published in

AIP Conference Proceedings

External link


Jurnal Internasional



Nano-forsterite powder with natural silica sand and magnesium powder as the raw materials have been succesfully synthesized. The silica sand was purified followed by a coprecipitation process to obtain colloidal silica. The magnesium powder was dissolved in a chloric acid solution to obtain MgCl2 solution. The nanoforsterite powder was synthesised using a sol-gel method which included the mixing the colloidal silica and the MgCl2 solution with various aging and filtering processes. The samples were dried at 100 C using a hot plate and then the dried powders were calcinated at 900 C for 2 hours. The samples were characetised for their elements and phase compositions using X-ray Flourescence (XRF) and X-ray Diffraction (XRD) methods, respectively. The diffraction data were qualitatively analyzed using Match!2 software and quantitatively using Rietica software. The crystallite size was verified using Transmission Electron Microscopy (TEM). Results of XRD data analysis showed that the forsterite content reached up to 90.5% wt. The TEM average crystallite size was approximately 53(6) nm