Abstract: The adsorption of Ni 2＋ on the fibre containing amidoxime groups in different initial concentration Ni 2＋ aqueous solution is studied‚and it was found that the bonding between Ni 2＋ and amidoxime groups was in accordance with the Freundlich isotherm．The reaction order was determined by infinitesimal calculus‚based on the relationship between the adsorption time and the concentration of Ni 2＋．To determine reaction rate constants（ k）‚the adsorption of Ni 2＋ of 0．033mol·L －1（initial concentration） on fibre containing amidoxime groups was also studied at different temperature．According to the correlation of k with the temperature and Arrhenius equation‚the activation energy was obtained．The results indicate that the adsorption kinetics accorded with the character of the first order reaction： with the reaction rate equation being c＝c0e －kt‚the equation of reaction rate constant k＝0．1716e －Ea／RT‚and the activation energy Ea＝13．52kJ／mol． 

Key words:  , fibre containing amidoxime groups；Nickel（Ⅱ）ion；adsorption；kinetic