Preparation of Mesoporous Spherical Activated Carbons with Large Specific Surface Area from Ion-Exchange Resin Having Various Metals

Abstract:

Activated carbons with good spherical shape were prepared from polystyrene-derived ion exchange resin D001 having various divalent cations of Mg²⁺, Mn²⁺, and Fe²⁺ by CO₂ activation at 800 °C for 1.0 h. The resins having univalent cation such as Na⁺ became fragmentized after activation, which can be attributed to their poorer thermostability than that having divalent cation. The resultant spherical activated carbon SACMg has the largest specific surface area (S_BET) of 1025 m² g^-1, total pore volume (V_t) of 0.781 cm³ g^-1 and mesopore volume (V_me) of 0.510 cm³ g^-1. SACMg, SACMn, and SACFe all have high mesopore fraction of 65.3%, 61.0, and 59.8%, respectively.

• Periodical: Advanced Materials Research (Volumes 239-242)
• Pages: 699-702
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.239-242.699
• Online since: May 2011
• Authors: Zhao Lian Zhu, Ai Min Li, Lei Yan, Chun Jin Wu, Hai Ling Wang, Yan Yua Xu
• Keywords: Ion-Exchange Resin, Mesopore, Pore Structure, Spherical Activated Carbon

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