Abstract
Leather, a unique consumer material, does not offer any smart or advanced applications due to the lack of functional properties. An approach has been made to prepare magnetic nanoparticles utilizing the simulated chromium and iron-containing wastewater. Here, we synthesized bimetallic chromium-iron oxide nanoparticles using a simple co-precipitation technique followed by freeze-drying without any heating or calcination and coated on the surface of the leather to provide distinctive magnetic properties. The as-synthesized bimetallic nanoparticles have 20 ± 3 nm size with a magnetization value of 11 emu/g. The existence of coated bimetallic nanoparticles with the commercial leather finishing dispersion was seen on the leather surface up to 24.7 ± 2.5 μm thickness through the scanning electron microscopy. Vibrating sample magnetometric measurements show that the bimetallic nanoparticles coated magnetic leather exhibits ferromagnetic behavior. We also demonstrate that the bimetallic nanoparticles coated magnetic leathers can be used for adhesive-free interior decoration and electromagnetic interference shielding applications.
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