Materials Science
8 years ago

Hemp stem-based activated carbons maximize micropore surface area for purification.

Advanced materials research
Preparation and Characterization of Microporous Hemp Stem-Based Activated Carbons
Xin Cui, Jian Min Gao, Xinmin Hao, Jin Sun, Tian Ma, Yuan Yang

Paper Summary

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Activated carbons were made from hemp stems using KOH as an activating agent. The specific surface area of the activated carbons increased and then decreased with the KOH to carbon ratio. The highest surface area and volume were achieved at a ratio of 4.5:1, with a maximum of 1589.27m2/g and 0.751m3/g, respectively. The activated carbons contained a significant amount of ultramicropores and supermicropores.