Abstract:
Green-synthesis of metal-oxide nanocomposites is the synthesis from bioactive agents like plant
microorganisms, and various bio-wastes, which are used for different applications such as wastewater
treatments, degradation of dyes, antibacterial activity and reduction of the toxic metal. Pharmaceutic
drug waste is one most pollutants in water quality which brings a chronological effect on fish, animals,
human beings, and plants. To treat wastewater, conventional methods such as sedimentation, flotation,
coagulation, and adsorption are utilized. However, pharmaceutical medicines in wastewater cannot
be fully treated using these old methods. As a result, modern advanced photo catalytic process were
used to treat these pharmaceutical drugs in wastewater. Removal of pharmaceutical wastewater by
Photo catalysis process using green synthesized metal oxide nanocomposite is the most preferable
one, less costly, eco-friendly, and simple process. This study was synthesize, optimize and characterize
the Ag/Fe/ZnO Nanocomposite from Embelia schimperia leaf as a reducing agent within silver nitrate,
iron chloride, and zinc acetate dehydrated as a precursor. The synthesized Ag/Fe/ZnO NCs were made
at three operating condition such as pH (8-12), Temperature (55-90oC) and precursor concentration
(0.05-0.1M). Response surface methodology used to analyze statistical experimental data at these
three factors. The parameters such as pH 11.46, temperature 55
oC, and 0.099M of concentration of
precursor were the optimum condition obtained for synthesized of Ag/Fe/ZnO NCs. The synthesized
Ag/Fe/ZnO NCs was characterized by UV-Visible Spectrophotometer, Fourier transform infrared
Spectrophotometer, X-ray diffraction spectroscopy, Dynamic Light Scattering, Scanning Electron
Microscopy and Thermal Gravimetric Analysis. Finally, Ag/Fe/ZnO NCs were used to degrade
ciprofloxacin medication using a 15W light source; Ag/Fe/ZnO NCs degrade 85% of ciprofloxacin.
Ag/Fe/ZnO NCs also evaluated for antibacterial activities against E. coli, S. typhi, B. cereus, and S.
aureus bacteria, with the results showing that the antibacterial activities is extremely efficient.
Therefore, this study confirms that green synthesized of Ag/Fe/ZnO NCs used for both applications of
removal of ciprofloxacin in aqueous solution and antibacterial activity.
