Abstract
MWNTs are reacted with CM-β-CD to obtain CM-β-CD-g-MWNTs with great dispersivity. The effects of pH value, initial concentration of uranium, contact time and adsorbent dosage on the adsorption behavior were investigated. The results show that pH=5,the initial concentration of uranium was 10mg/L, the adsorption of uranium on CM-β-CD-g-MWNTs after 90 min, and the adsorption capacity is 19.42 mg/g at 25°C. Kinetics and isothermal were better fitted by Langmuir isotherm model and pseudo-second-order kinetic model, and the maximum adsorption capacity was 92.65mg/g. The composites had been antegrallty made, the -C=O,-C-O and -OH palyed irreplaceable role by SEM,EDS and FTIR.
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