Bamboo Leaf Aerogel Opacified with Activated Carbon

Kien Woh Kow, Rozita Yusoff, A. R.Abdul Aziz, E. C. Abdullah

Research output: Journal PublicationArticlepeer-review

3 Citations (Scopus)


Opacification of silica aerogel to reduce its thermal conductivity is normally done by using carbon. The motivation of this work is to use bamboo leaf as a single source to synthesize water glass and activated carbon. These precursors were then used to synthesize carbon-opacified silica aerogel (COSA). Because bamboo leaf is an agriculture waste, it provides a low-cost source to synthesize COSA. The properties of COSA were compared with other aerogels, including aerogel opacified with carbon black and synthesized from alkoxide. The results indicate that COSA have a bulk density of 0.069±0.0014–3, a porosity of 97.9%, a BET specific surface area of 330.5±3.7 m2.g–1, a total pore volume of 1.38±0.07cm3.g–1 and a thermal conductivity of 0.0311±0.009 W.m–1.K–1. The TGA results show that COSA is thermally stable up to 495°C and is therefore suitable for use in thermal insulation at high temperature.

Original languageEnglish
Pages (from-to)175-180
Number of pages6
JournalTransactions of the Indian Ceramic Society
Issue number3
Publication statusPublished - 2 Jul 2016
Externally publishedYes


  • Act ivated carbon
  • C arbon opacif ication
  • Silica aerogel
  • Sol-gel method
  • Thermal conductivity

ASJC Scopus subject areas

  • Ceramics and Composites


Dive into the research topics of 'Bamboo Leaf Aerogel Opacified with Activated Carbon'. Together they form a unique fingerprint.

Cite this