Reinforced MFC aerogel for heavy metal ions separation

摘要

Mirco-fibrillated cellulose (MFC) aerogel was reinforced by chitosan. The reinforced MFC aerogel was used as heavy metal ions absorbent. The results showed that the aerogel had good absorption capacity of over 200mg/g for all 4 kinds of heavy metal ions, Cd2+,Zn2+,Pb2+ and Cr6+ in the initial concentration range of 50-1000mg/L. The aerogel had little effect on contact time, but showed dependence on ion initial concentration. The reinforced MFC aerogel is a novel and attractive absorbent for heavy metal ions separation.