Molecularly imprinted magnetite nanomaterials and its application as corrosion inhibitors

Molecularly imprinted (MI) magnetic submicroparticles with iron oxide core and silica shell were used as substrate for immobilization of different functions. The activity toward heavy metals was provided via attachment of ethylene diamine tetra acetate (EDTA) silica coated magnetite nanomaterials; then their use in the immobilization of MI magnetite (Fe₃O₄/SiO₂/Thermosensitive/EDTA-CS) nanomaterials to the silica surface with subsequent chemical grafting of EDTA on which coupling occurred via an chitosan bonding. MI of manmade polymeric materials (Fe₃O₄/SiO₂/Thermosensitive/EDTA nanomaterials) are functionalized by the cross-linking of monomeric molecules as an analyte, which react as a molecular template (Self-assembly process). Covalent binding of CS to the magnetite surface proceeds using a free -CH₂OH group of CS and a NH₂-group of magnetite with EDTA as a cross-linker. This perspective has been originated by Wulff and his subordinates. MI magnetite (Fe₃O₄/SiO₂/Thermosensitive/EDTA-CS) nanomaterials were characterized by X-ray diffraction spectrometry, scanning electron microscopy, energy dispersive X-ray spectroscopy, Fourier transform-infrared spectroscopy, vibrating sample magnetometry, and dynamic light scattering. The prepared MI magnetite nanomaterials (Fe₃O₄/SiO₂/Thermosensitive/EDTA-CS) were used as corrosion inhibitors.