Abstract
This study describes the removal of malachite green (MG) and methylene blue (MB) from aqueous solution using adsorption and photodegradation activity of Fe0.01Ni0.01Zn0.98O/polyacrylamide nanocomposite (FNZP/PAM). Fourier transform infra red spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), high resolution transmission electron microscopy (HRTEM), small area electron diffraction (SAED) and UV–vis spectroscopy techniques were used for characterization of nanocomposite. The coupled photocatalysis and adsorption shown by FNZP/PAM resulted in fast and higher degradation of MB and MG as compared to dye removal by FNZP. The FNZP/PAM shows a higher rate of dyes removal due to excellent adsorbing properties of cross linked polyacrylamide (PAM). A remarkable 97.56% of MB and 96.13% of MG was achieved for FNZP/PAM by coupled adsorption and photocatalysis after two hours. Thermo gravimetric analysis confirmed the higher thermal stability of FNZP/PAM as compared to PAM. The nanocomposite proved to be a promising antimicrobial agent against bacterial strains of Staphylococcus aureus (S. aureus).
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