/g, with a swelling ratio of 60.2% after the template was removed from the monolith by 0.1M EDTA solution. The maximum adsorption capacity of PHEMACFe 3þ monolith for Fe 3þ ion was 0.76 mg/g. The adsorption behavior of the monolith has been successfully described by the Langmuir isotherm. It was determined that the relative selectivity of PHEMAC-Fe 3þ monolith was 59.7 and 37.0 times greater than that of the nonimprinted PHEMAC monolith as compared with the Cd 2þ and Ni 2þ ions, respectively. The PHEMAC-Fe 3þ monolith was recovered and reused many times without any significant decrease in its adsorption capacity.
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