Green and Reusable Ni@AC-IL-Al2O3 Nanocatalyst for Efficient A3 Coupling, Nitroarenes Reduction, Zeta Potential Analysis, and Selective Adsorption of Cationic Dyes
Materials study demonstrates high catalytic and dye adsorption performance in waste-derived nickel nanocatalysts, highlighting their utility in sustainable chemical manufacturing.
Key Points
To develop a sustainable, waste-derived hierarchical nanocatalyst for efficient organic synthesis, nitroarene reduction, and cationic dye removal.
Synthesized the Ni@AC-IL-Al2O3 nanocatalyst by combining peanut shell-derived activated carbon, aluminum foil waste-derived Al2O3, an ionic liquid, and immobilized nickel nanoparticles.
Characterized structural and surface properties using BET, TGA, XPS, HRTEM, FESEM, and zeta potential electrokinetic measurements.
Assessed catalytic efficiency in A3 coupling and nitroarene reduction, as well as adsorption capacity for Rhodamine B and related cationic dyes over five operational cycles.
Achieved 95% conversion with high selectivity in A3 coupling and nitroarene reduction under mild reaction conditions.
Demonstrated selective adsorption of Rhodamine B and other cationic dyes via electrostatic interactions, π–π stacking, and hydrogen bonding.
Retained over 90% catalytic activity across five consecutive reuse cycles with negligible nickel leaching.