Sugarcane bagasse-derived granular activated carbon hybridized with ash in bio-based alginate/gelatin polymer matrix for methylene blue adsorption
Issued Date
2023-12-31
Resource Type
ISSN
01418130
eISSN
18790003
Scopus ID
2-s2.0-85174439635
Pubmed ID
37852399
Journal Title
International Journal of Biological Macromolecules
Volume
253
Rights Holder(s)
SCOPUS
Bibliographic Citation
International Journal of Biological Macromolecules Vol.253 (2023)
Suggested Citation
Sutthasupa S., Koo-amornpattana W., Worasuwannarak N., Prachakittikul P., Teachawachirasiri P., Wanthong W., Thungthong T., Inthapat P., Chanamarn W., Thawonbundit C., Srifa A., Ratchahat S., Chaiwat W. Sugarcane bagasse-derived granular activated carbon hybridized with ash in bio-based alginate/gelatin polymer matrix for methylene blue adsorption. International Journal of Biological Macromolecules Vol.253 (2023). doi:10.1016/j.ijbiomac.2023.127464 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/90811
Title
Sugarcane bagasse-derived granular activated carbon hybridized with ash in bio-based alginate/gelatin polymer matrix for methylene blue adsorption
Author's Affiliation
Other Contributor(s)
Abstract
Sugarcane bagasse (SCB) and sugarcane bagasse ash (SCB-ash) are major agricultural residues from sugar processing industries in Thailand. In this study, SCB-derived activated carbon (SCBAC) with the optimum surface area of 489 m2/g was prepared by steam activation at 900 °C for 1 h. Hybrid granular activated carbons (GACs) were successfully developed by mixing SCBAC with bio-based polymers, alginate and gelatin, at the weight ratio of 3:1 for methylene blue (MB) adsorption. SCB-ash, which was additionally mixed in the GACs, could significantly increase compressive strength of the GACs, but decrease their surface areas and MB adsorption efficiencies. An existence of gelatin up to 30 wt% in the polymer matrix of the GACs showed a slight increase in swelling degree and iodine number, but could not enhance bead strength and MB adsorption efficiency due to its relatively lower bulk density and specific surface area. Maximum MB adsorption capacities of the GACs were found at 290–403 mg/g under this study's experimental condition. MB adsorption efficiencies at above 90 % with no deformation of all of the selected SCB hybrid GACs were finally confirmed after seven consecutive adsorption-desorption cycles using a simple regeneration with ethanol.