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Citation: MA Yong, WANG En-De, SHAO Hong. Preparation of Chitosan Loaded Bentonite Absorbent[J]. Chinese Journal of Applied Chemistry, ;2004, 21(6): 597-600. shu

Preparation of Chitosan Loaded Bentonite Absorbent

MA Yong ^a,b,, ,
WANG En-De ^b ,
SHAO Hong ^b

1.
a Bohai Univeristy, Jinzhou 121000;
2.
b Northeast University, Shenyang 110006

Corresponding author: MA Yong,
Received Date: 11 August 2003
Available Online: 13 February 2004
Fund Project: 辽宁省教育厅资助的重点科研项目(21062232) (21062232)

A kind of absorbent is made from the combination of chitosan and bentonite. The absorbent is used for absorption of tannic acid in Chinese medicines, decolorization of used dyestuff solution, and clarification of old vinegar. The decolorization rate is 97%. The absorption rate of tannic acid is 50%. The transmittance of old vinegar is 25.8%. The structure change of bentonite and the mechanism of modification are discussed based on XRD results that the structure of bentonite does not changed and chitosan is absorbed on the surface of bentonite.
- chitosan,
- bentonite,
- mechanism,
- application
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