Structure Analysis of Fe3O4@SiO2 Core Shells Prepared from Amorphous and Crystalline SiO2 Particles

Munasir, A. S. Dewanto, D. H. Kusumawati, N. P. Putri, A. Yulianingsih, I. K.F. Sa'Adah, A. Taufiq, N. Hidayat, S. Sunaryono, Z. A.I. Supardi

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27 Citations (Scopus)


This article reports the results synthesis of crystalline (Fe3O4@c-SiO2) and amorphous (Fe3O4@a-SiO2) nanoparticles from natural resources (iron sand and silica sand). The synthesis of Fe3O4 and SiO2 nanoparticles used co-precipitation and hydrothermal-coprecipitation methods with polyethylene glycol (PEG) 4000 as a template. The XRD data analysis presented that the amorphous SiO2 particles were successfully produced using hydrothermal and co-precipitation methods. The XRD data analysis also presented that the crystalline phases were formed in quartz and tridymite phases after calcination process of the amorphous phase. SEM images exhibited that the amorphous phase had different particle size and morphology from the crystalline phase. FTIR spectra presented some absorption peaks of new functional groups indicating the existence of Si-O-Si (silanol), Fe-O, C-N, and Fe-O-Si as new functional groups.

Original languageEnglish
Article number012010
JournalIOP Conference Series: Materials Science and Engineering
Issue number1
Publication statusPublished - 12 Jun 2018
Externally publishedYes
Event5th International Conference on Advanced Materials Sciences and Technology, ICAMST 2017 - Makassar, Indonesia
Duration: 19 Sept 201720 Sept 2017


  • Core-shell
  • FeO@SiO
  • and silica sand
  • crystalline and amorphous structures
  • iron sand
  • nanoparticle


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