Nickel-Iron Alloy Nanoparticle Characteristics Pre- and Post-Reaction With Orange G

Bimetallic nanoparticles comprised of iron and nickel were synthesized, characterized, evaluated to optimize the ideal metal ratio for azo dye removal from water systems. Results show that changing molar caused different rates, as well extent overall elimination water. Lower ratios, Ni 1 Fe xmlns:xlink="http://www.w3.org/1999/xlink">10 xmlns:xlink="http://www.w3.org/1999/xlink">2.5 , exhibited a higher efficiency 80-99%. Higher concentrations in catalyst, xmlns:xlink="http://www.w3.org/1999/xlink">3 xmlns:xlink="http://www.w3.org/1999/xlink">5 resulted 70-90% removal. The lower ratios consistent rate 0.11 g/L/min, while displayed varying rates 0.1-0.05 g/L/min. A second order kinetic model was fit first twenty minutes reaction all compositions, where there is decrease constant with an increase ratio. During last forty reaction, zero model. All as-synthesized nanoparticle samples found be structurally disordered based on lack distinct peaks XRD spectra. Post-reaction have xmlns:xlink="http://www.w3.org/1999/xlink">2 O FeOOH cubic peaks.