Nanostructured synthetic OPAL-C

M. Hernández-Ortiz, G. Hernández-Padrón, R. Bernal, C. Cruz-Vázquez, M. Vega-González, V. M. Castañoc

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Nanocrystalline opal-C has been synthesized, through sedimentation and fast drying. The formation of spherical silica nanoparticles was studied using X-ray diffraction (XRD), infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Its crystallite size is calculated using Scherrer equation and Guthrie equation (modeled through XRD patterns of several very pure opal samples). SEM shows nano-sized particles in the 60-90 nm diameter range. The results are compared with a natural opal-CT the so-called 'fire opal'.

Original languageEnglish
Pages (from-to)1297-1302
Number of pages6
JournalDigest Journal of Nanomaterials and Biostructures
Issue number3
StatePublished - 2012


  • Fire opal
  • OPAL-C
  • Stöber method and scherrer equation


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