cm−1 attached to O—H and N—H groups are weak, the peaks at 2930 and 2850 cm−1 related to C—H group obviously weaken; the peaks at 1750 cm−1 related to C=O group of from esters, anhydride, and amide almost disappeared. The changes of biosorption bands mean the decrease of amino and amide. The result suggests that the Cd biosorption mechanism of the strain is related to carboxyl, hydroxyl, amino, and so on groups, which is similar to other reports [7].