Synthesis and characterisation of porous titania-silica composite aerogel for NOx and acetaldehyde removal

Kwang Young Lee, Se Min Park, Jong Beom Kim, Ibrahim El Saliby, Mohammad Shahid, Geon Joong Kim, Ho Kyong Shon, Jong Ho Kim

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


In this study, the synthesis of porous titania-silica (TiO2-SiO2) composite aerogel at ambient pressure by using non-hazardous chemicals as a source of silica was investigated. TiO2-SiO2 composite aerogels were characterised and their photocatalytic performances were investigated for the removal efficiency of acetaldehyde and NOx under UV light. Results showed that porous composite aerogel with aggregated morphology, high surface area and an increased mesoporosity were formed. TiO2-SiO2(1.8) composite, with high Ti/Si ratio, showed the best results in terms of photocatalytic removal of acetaldehyde and nitrogen oxide.

Original languageEnglish
Pages (from-to)4505-4511
Number of pages7
JournalJournal of Nanoscience and Nanotechnology
Issue number5
Publication statusPublished - 2016 May 1
Externally publishedYes


  • Acetaldehyde
  • NO
  • Photocatalysis
  • Silica
  • Titania

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics


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