Preparation of Magnetic Activated Carbon

Based on the special molecular structure of surfactant, paramagnetic material used as magnetic nucleus was coated with two layers of surfactant including an inner layer and an outer layer. Magnetic reagent can combine with activated carbon due to adsorption of hydrophilic raclical of the outer surfa...

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Bibliographic Details
Published in:Journal of forestry research 1997-12, Vol.8 (4), p.250-253
Main Author: 朱莹 方桂珍 张世润 刘守新 程志芬
Format: Article
Language:English
Subjects:
Activated
Activated carbon
Calcium chloride
Carbon
Dosage
Forestry
Magnetic
Magnetic permeability
Magnetic properties
Magnetic susceptibility
Magnetism
Molecular structure
Nucleus
Physical properties
Reagent
Reagents
Surfactant
Surfactants
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Summary:Based on the special molecular structure of surfactant, paramagnetic material used as magnetic nucleus was coated with two layers of surfactant including an inner layer and an outer layer. Magnetic reagent can combine with activated carbon due to adsorption of hydrophilic raclical of the outer surfactant layer. So activated carbon has magnetism. The effects of magnetic reagent dosage pH and activator upon the magnetic susceptibility of activated carbon were studied. Concerning the optimal conditions. MR-20 is the best magnetic reagent. Concentration of CaCl2 is 0.02M and pH 1.8–2.4. The physical properties of magnetic activated carbon vary with the types, dosage and magnetizing condition of magnetic reagent.
ISSN:1007-662X
1993-0607
DOI:10.1007/BF02875016