COPPER PHTHALOCYANINE DYE IMMOBILIZED ON MAGNETITE PARTICLES - AN EFFICIENT ADSORBENT FOR RAPID REMOVAL OF POLYCYCLIC AROMATIC-COMPOUNDS FROM WATER SOLUTIONS AND SUSPENSIONS

Magnetite particles bearing covalently immobilized copper phthalocyani ne dye (''blue magnetite'') were prepared and used for the isolation a nd/or removal of polycyclic dyes from water solutions and suspensions. Binding of these polycyclic dyes occurs by a chemical, equilibrated, and saturatable mechanism, following the Langmuir adsorption model. No nspecific adsorption of dyes having nonplanar molecular structure was low. The values of maximum adsorption capacity were calculated. The bo und dyes were only partially eluted from the adsorbent with methanol a nd methanol-concentrated ammonia solution (50/1, v/v).