The adsorption behavion of Cu 2+ on fiber containing amidoxime groups(AOCF)was studied.The Cu 2+ concentration of aqueous solution was from 0 0087 mol/L to 0 0335 mol/L.The result showed that the adsorption of Cu 2+ o...The adsorption behavion of Cu 2+ on fiber containing amidoxime groups(AOCF)was studied.The Cu 2+ concentration of aqueous solution was from 0 0087 mol/L to 0 0335 mol/L.The result showed that the adsorption of Cu 2+ on AOCF fitted the Langmuir model and the adsorption equation was Γ=0 276 C /(1+0 0282 C )mg/g.The adsorption reaction followed first order kinetics by means of differential method: C = C 0e - kt .The rate constant of adsorption was obtained at different temperature, k =4 47×10 3e Ea/RT ,and the apparent activation energy was determined to be 24 89 kJ/mol.展开更多
An amidoximated fiber was synthesized via a simple pathway.Its chemical and mechanical properties were determined.The static and dynamic adsorption properties to extract Au from ore liquid were studied.The highest ads...An amidoximated fiber was synthesized via a simple pathway.Its chemical and mechanical properties were determined.The static and dynamic adsorption properties to extract Au from ore liquid were studied.The highest adsorption capacities of static and dynamic were 585 mg/g and 2962 mg/g,respectively.It was concluded that this fiber might be used as a good material to extract Au from ore liquid.展开更多
文摘The adsorption behavion of Cu 2+ on fiber containing amidoxime groups(AOCF)was studied.The Cu 2+ concentration of aqueous solution was from 0 0087 mol/L to 0 0335 mol/L.The result showed that the adsorption of Cu 2+ on AOCF fitted the Langmuir model and the adsorption equation was Γ=0 276 C /(1+0 0282 C )mg/g.The adsorption reaction followed first order kinetics by means of differential method: C = C 0e - kt .The rate constant of adsorption was obtained at different temperature, k =4 47×10 3e Ea/RT ,and the apparent activation energy was determined to be 24 89 kJ/mol.
文摘An amidoximated fiber was synthesized via a simple pathway.Its chemical and mechanical properties were determined.The static and dynamic adsorption properties to extract Au from ore liquid were studied.The highest adsorption capacities of static and dynamic were 585 mg/g and 2962 mg/g,respectively.It was concluded that this fiber might be used as a good material to extract Au from ore liquid.