4-Aminoacetophenone Intercalated CoAl Layered Double Hydroxides: Synthesis, Characterization and Adsorptive Removal of Cd(II) ions from Water Samples

In the present study, CoAl-NO3 Layered Double Hydroxides (CoAl-NO3-LDH) was synthesized and an enolate anion of 4-Aminoacetophenone (AAP) intercalated into LDH following reconstruction approach. The CoAl-NO3-LDH CoAl-AAP-LDH were characterized by Fourier-Transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), scanning electron microscope (SEM) energy dispersive (EDX) analyses. worked well for adsorption Cd(II) ions from aqueous samples at optimum pH 7, adsorbent dosage 25 mg, concentration mg L-1 shaking time 20 min °C. Different isotherms such as Langmuir, Freundlich Dubinin-Radushkevich (D-R) fitted to data with correlation coefficient (R2) 0.998, 0.982 0.992, respectively. Monolayered (Qm) multi-layered (KF) capacities calculated found be 34.40 19.44 g-1, Sorption 9.13 kJ mol-1, indicating chemisorption or ion exchange sorption mechanism. method wastewater samples.