能源化学(英文版)

能源化学(英文) ›› 2011, Vol. 20 ›› Issue (6): 687-692.DOI: 10.1016/S1003-9953(10)60234-4

• Articles • 上一篇    

Precipitation of hematite nanoparticles via reverse microemulsion process

Mohammad Reza Housaindokht1*, Ali Nakhaei Pour   

  1. Bimolecular Research Center, Department of Chemistry, Ferdowsi University of Mashhad, P.O.Box: 91775-1436, Mashhad, Iran
  • 收稿日期:2011-02-14 修回日期:2011-05-03 出版日期:2011-11-20 发布日期:2011-11-18
  • 通讯作者: Ali Nakhaei Pour

Precipitation of hematite nanoparticles via reverse microemulsion process

Mohammad Reza Housaindokht1*, Ali Nakhaei Pour   

  1. Bimolecular Research Center, Department of Chemistry, Ferdowsi University of Mashhad, P.O.Box: 91775-1436, Mashhad, Iran
  • Received:2011-02-14 Revised:2011-05-03 Online:2011-11-20 Published:2011-11-18
  • Contact: Ali Nakhaei Pour

摘要： Hematite nanoparticles have been successfully synthesized via two processing routes: (i) conventional precipitation route and (ii) reverse microemulsion route. The particle precipitation was carried out in a semibatch reactor. A microemulsion system consisting of water, chloroform, 1-butanol and surfactant was loaded with iron nitrates to form iron nanoparticles precipitation. The precipitation was performed in the single-phase microemulsion operating region. Three technical surfactants, with different structure and HLB value are employed. The influence of surfactant characterization on the size of produced iron oxide particle has been studied to gain a deeper understanding of the important controlling mechanisms in the formation of nanoparticles in a microemulsion. Transmission electron microscopy (TEM), surface area, pore volume, average pore diameter, pore size distribution and XRD were used to analyze the size, size distribution, shape and structure of precipitated iron nanoparticles.

关键词: iron nanoparticles, microemulsion, hematite

Abstract: Hematite nanoparticles have been successfully synthesized via two processing routes: (i) conventional precipitation route and (ii) reverse microemulsion route. The particle precipitation was carried out in a semibatch reactor. A microemulsion system consisting of water, chloroform, 1-butanol and surfactant was loaded with iron nitrates to form iron nanoparticles precipitation. The precipitation was performed in the single-phase microemulsion operating region. Three technical surfactants, with different structure and HLB value are employed. The influence of surfactant characterization on the size of produced iron oxide particle has been studied to gain a deeper understanding of the important controlling mechanisms in the formation of nanoparticles in a microemulsion. Transmission electron microscopy (TEM), surface area, pore volume, average pore diameter, pore size distribution and XRD were used to analyze the size, size distribution, shape and structure of precipitated iron nanoparticles.

Key words: iron nanoparticles, microemulsion, hematite