I. Safarik et al., ADSORPTION OF WATER-SOLUBLE ORGANIC-DYES ON MAGNETIC CHARCOAL, Journal of chemical technology and biotechnology, 69(1), 1997, pp. 1-4
Magnetic charcoal was prepared by entrapment of fine charcoal particle
s into the structure of magnetic iron oxides. This adsorbent can effic
iently adsorb a variety of organic compounds. For the adsorption exper
iments water soluble organic dyes belonging to the triphenylmethane, h
eteropolycyclic and azodye groups were used as model compounds. Maximu
m adsorption capacities ranged between 10 and 20 mg of dyes per 1 cm(3
) of the sedimented adsorbent; this corresponds to 132.5-265 mg of dye
s per 1 g of the dried adsorbent.