Preparing Fe3O4 nanoparticles from Fe2+ ions source by co-precipitation process in various pH

Darminto*, MacHida N. Cholishoh, Feby A. Perdana, Malik A. Baqiya, Mashuri Yoyok Cahyono, Triwikantoro

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

28 Citations (Scopus)

Abstract

Magnetite (Fe3O4) nanoparticles were synthesized from the Fe2+ ions in the form of ferrous chloride tetrahydrate (FeCl2.4H2O) by coprecipitation method at low temperature (≤70°C). During the precipitation process pH was kept constant at 7.37, 8.07, 9.12, 10.37 and 10.55 respectively. It was found that the magnetite nanoparticles was formed as a result of the dehydration reaction of ferrous hydroxide and ferric oxyhydroxide, in which the latter compound was produced by the partial oxidation of ferrous hydroxide by O2 in dissolved air during the synthesis. The X-ray diffraction (XRD) and transmission electron microscopy (TEM) have been used to characterize these resulted particles. The average crystalline size of Fe3O4 was obtained in the range between 18-55 nm for the corresponding range of pH used in the process. These results show that the pH of precipitation and the valence of the metal salt used in the synthesis have played an important role in influencing the particle size.

Original languageEnglish
Title of host publication4th Nanoscience and Nanotechnology Symposium, NNS 2011 - An International Symposium
Pages234-237
Number of pages4
DOIs
Publication statusPublished - 2011
Externally publishedYes
Event4th Nanoscience and Nanotechnology Symposium, NNS 2011 - Bali, Indonesia
Duration: 23 Sept 201125 Sept 2011

Publication series

NameAIP Conference Proceedings
Volume1415
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference4th Nanoscience and Nanotechnology Symposium, NNS 2011
Country/TerritoryIndonesia
CityBali
Period23/09/1125/09/11

Keywords

  • FeO nanoparticle
  • co-precipitation
  • ferrous chloride tetrahydrate
  • pH

Fingerprint

Dive into the research topics of 'Preparing Fe3O4 nanoparticles from Fe2+ ions source by co-precipitation process in various pH'. Together they form a unique fingerprint.

Cite this