High saturation magnetization superparamagnetic Fe/Ni core/shell microparticles for chromium removal

Abstract

In this paper, the Fe/Ni microparticles are synthesized by two reactions which directly utilize H2 to reduce NiO and Fe3O4 microspheres.

Catalytic degradation of Orange II in aqueous solution using diatomite-supported bimetallic Fe/Ni nanoparticles

“…1,2 However, this technology has inherent disadvantages, such as creation of a large amount of waste products (iron precipitate sludge) and requirement of low working pH (range of 2-3); which restricts its global acceptance as a practical wastewater treatment technology. 14,15 Iron-based bimetallic nanoparticles have received attention in wastewater treatment technology 14,16,17 owing to their small particle size, large effective surface area and inherent higher reactivity. 16 The use of additional metallic catalysts, such as palladium (Pd) and nickel (Ni) with nZVI (Fe 0 ) can enhance the rate of reduction by providing reactive electron donors or hydrogen catalysts.…”

One-step dry synthesis of an iron based nano-biocomposite for controlled release of drugs

“…The M-H curve exhibits negligible hysteresis indicating the superparamagnetism. 24,27 The high saturation magnetization (M s ) is observed at 11.2 emu g À1 (corresponding to 0.217 emu for 20 mg mass of the sample) which indicates the presence of magnetite (Fe 3 O 4 ). 15,24,28…”