Study on CO₂ Adsorption of Halloysite Modified by Silane Coupling

Abstract:

The natural halloysite as the main raw material, removing the kaolinite, the quartz, feldspar and other impurities through purification. The purified halloysite was roasting activation pretreatment, in order to enhance surface porosity and reaction activity, and then was made of halloysite composite by modifying through the use of silane coupling agent. The samples were characterized by XRD、FESEM、BET、FT-IR and other chemical analysis method. The weight percentage of CO₂ which were adsorbed by the modified halloysite increased from 3.13% to 13.92%.

• Periodical: Advanced Materials Research (Volumes 989-994)
• Pages: 441-445
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.989-994.441
• Online since: July 2014
• Authors: Hua Li Zhang, Xiao Ying Lai*, Han Jun Wu
• Keywords: Adsorption, CO₂, Coupling, Halloysite, Modifying, Silane

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