Metal-silica spherical particles development by spray pyrolysis: Effect of metal species on surface area and toluene adsorption

Sangjin Han, Kye Sang Yoo, Daekeun Kim, Jinsoo Kim, Mohd Roslee Othman

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Zn-SiO2 microspheres are an emerging material in the field of catalysis, separation, and sensor. In the development of Zn-SiO2 microspheres by spray pyrolysis for a volatile organic component removal, the micro-spherical particles were observed to adsorb 3.4 mol kg−1 of toluene at zinc concentration of 10 wt% in comparison with microspheres containing the same concentration of cobalt, nickel and iron species. Toluene gas with low inlet concentration of 0.1 % was used, indicating the high sensitivity of the Zn-SiO2 microspheres. Zinc outperformed the other metal species due to the former's uniform spherical shape character and high affinity for toluene. The effect of surface area and pore characteristics of the microspheres on the toluene adsorption was also found to be profound.

Original languageEnglish
Article number105049
JournalJournal of Analytical and Applied Pyrolysis
Volume156
DOIs
StatePublished - Jun 2021

Keywords

  • Mesoporous adsorbent
  • Spray pyrolysis
  • Toluene adsorption
  • VOC
  • Zinc-Silica microsphere

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