Biocatalyst Based on Magnetic Nanoparticles with Cu(II), Mn(II), Zn(II) and Immobilised Catalase

Abstract This article described a process for the preparation of Fe 3 O 4 nanocatalyst modified with Mn(II), Cu(II) and Zn(II) ions immobilised catalase. The effectiveness description ion sorption was compared four equilibrium models: Langmuir, Freundlich, Redlich–Peterson Sips. proposed models allow both single- multi-component sorption. results were also verified by DFT analysis. Langmuir model describing single-component extended systems best fit represented metal on . maximum capacity values in pseudo-second-order kinetic 10.76, 12.87 10.52 mg/g Cu(II), Mn(II) 11.79, 8.54 2.03 system, respectively. kinetics parameters most accurately model, which suggested, along Extended chemical nature After /Mn–Zn–Cu material, catalase surface material. final material able to decompose hydrogen peroxide an activity 7130 units/g Modification resulted increase H 2 removal efficiency exceeding 99.9%.