Abstract
In this study, a novel magnetic material (MPC800) was synthesized from penicillin mycelial dreg via K2FeO4 fabrication. The characterization results demonstrated that Fe3O4 particles were successfully loaded on the surface of MPC800, which provided independent functional sites, with high surface area accompanied by strong magnetic separation performance. The removal capacities of Cu2+ and Cd2+ on MPC800 in the single-metal system reached 93.28 mg/g and 69.20 mg/, respectively, at 25 °C and pH 5.0, which were 12.31 and 19.60 times higher than those before activation. The sorption of Cu2+ and Cd2+ on MPC800 fitted well to the pseudo-second-order model and Langmuir isotherm model. In the binary-metals system, the sorption of Cu2+ on MPC800 was slightly affected. At the same time, the uptake of Cd2+ was severely inhibited, indicating that competitive adsorption occurred between the two metal ions, and the adsorption preference of Cu2+ was better than that of Cd2+ on MPC800. Furthermore, MPC800 was highly effective in metal ion solutions prepared with natural water and has an excellent recycling capacity.
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