Conversion of fly ashes from different regions to mesoporous silica: effect of the mineralogical composition

Yilmaz M., Mermer N. K.

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, vol.78, pp.239-247, 2016 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 78
  • Publication Date: 2016
  • Doi Number: 10.1007/s10971-016-3963-x
  • Journal Name: JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.239-247
  • Keywords: MCM-41, Fly ash, Mineral composition, Alkaline fusion, MOLECULAR-SIEVES, TEMPLATE REMOVAL, MCM-41, ZEOLITE
  • Yıldız Technical University Affiliated: Yes

Abstract

This study reports the synthesis of mesoporous MCM-41 silica materials by the hydrothermal method using five different fly ashes from the Seyitomer (F-S), CatalagzA +/- (F-C), Tun double dagger bilek (F-T), Orhaneli (F-O), and AfAYinelbistan (F-A) power plants in Turkey. The mesoporous materials were not obtained from F-A which shows a lower Si/Al ratio and Si content. The synthesized MCM-41 samples from the other region fly ashes were characterized by X-ray diffraction, nitrogen adsorption-desorption, thermogravimetry, scanning electron microscopy, and high-resolution transmission electron microscopy analyses. The results demonstrated that the structural properties of the synthesized mesoporous materials were varied from depending on chemical compositions and mineral phase contents of the used fly ashes.