Adsorption of dyes on chitin. I. Equilibrium studies
Corresponding Author
G. McKay
Department of Industrial Chemistry, The Queen's University of Belfast, 21 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland
Department of Industrial Chemistry, The Queen's University of Belfast, 21 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland===Search for more papers by this authorH. S. Blair
Department of Industrial Chemistry, The Queen's University of Belfast, 21 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland
Search for more papers by this authorJ. R. Gardner
Department of Industrial Chemistry, The Queen's University of Belfast, 21 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland
Search for more papers by this authorCorresponding Author
G. McKay
Department of Industrial Chemistry, The Queen's University of Belfast, 21 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland
Department of Industrial Chemistry, The Queen's University of Belfast, 21 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland===Search for more papers by this authorH. S. Blair
Department of Industrial Chemistry, The Queen's University of Belfast, 21 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland
Search for more papers by this authorJ. R. Gardner
Department of Industrial Chemistry, The Queen's University of Belfast, 21 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland
Search for more papers by this authorAbstract
Equilibrium isotherms have been studied for the adsorption of four dyestuffs, namely, Acid Blue 25, Acid Blue 158, Mordant Yellow 5, and Direct Red 84, onto chitin. Langmuir and Freundlich constants have been determined and the effects of chitin particle size and solution temperature have been investigated. Theoretical isotherms have been compared with experimental data and good agreement was obtained using a composite isotherm of the general form: Ye = iCe/(1 + jCem), where i,j, and m are constants.
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