Conversion of sugarcane bagasse ash to silica-based catalyst support material for synthesis of carbon nanotubes from benzene
Issued Date
2026-04-01
Resource Type
ISSN
22132929
eISSN
22133437
Scopus ID
2-s2.0-105028368509
Journal Title
Journal of Environmental Chemical Engineering
Volume
14
Issue
2
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Environmental Chemical Engineering Vol.14 No.2 (2026)
Suggested Citation
Assawagetmanee M., Inthapat P., Chotmunkhongsin C., Worasuwannarak N., Aldous L., Wu K.C.W., Charinpanitkul T., Chaiwat W. Conversion of sugarcane bagasse ash to silica-based catalyst support material for synthesis of carbon nanotubes from benzene. Journal of Environmental Chemical Engineering Vol.14 No.2 (2026). doi:10.1016/j.jece.2026.121211 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/114687
Title
Conversion of sugarcane bagasse ash to silica-based catalyst support material for synthesis of carbon nanotubes from benzene
Corresponding Author(s)
Other Contributor(s)
Abstract
Sugarcane bagasse ash, an abundant agricultural waste with high silica content (68 wt%), was modified through two combined processes of 1 M hydrochloric acid leaching followed by 800 °C calcination for 2 h with a different sequence to tailor its textural properties. Then, the silica-rich powder was utilized as an Fe catalyst support material for carbon nanotube synthesis. The calcined after acid-leached ash (CLA) samples exhibited a higher silica content of 87.5 wt% with a specific surface area of 12.3 m²/g, when compared to the acid-leached after calcined ash (LCA) samples prepared by an opposite treatment sequence. After the hydrothermal treatment with an iron nitrate solution using 20 wt% Fe loading, the Fe supported on the calcined after acid-leached ash (Fe/CLA) catalyst exhibited a higher surface area of 25.4 m²/g with a smaller Fe crystallite size of 31.8 nm. By using benzene as a carbon source through catalytic chemical vapor deposition at 800 °C, the selected Fe/CLA catalyst could provide a remarkable carbon nanotube yield of 7.93 wt% with a uniform diameter of 44.4 nm and high graphitic content based on I <inf>G</inf> /I <inf>D</inf> of 1.96. Accordingly, this work demonstrates the potential utilization of sugarcane bagasse ash as a promising Fe catalyst support material for carbon nanotube production from benzene with preliminary economic-environmental outlooks.