Background: The promising properties of Zinc Phosphate (ZnP) Nanoparticles (NPs) have
made them come into prominence as one of the most favorable catalysts in various industries with ever-
increasing applications. Among several proposed synthetic methods, biological methods have mostly
been desired for their sheer person-environment compatibility in comparison with those of chemical
and physical ones.
Objective: Therefore, the synthesis of ZnP NPs via biological route was developed in this study.
Method: Herein proposed a facile, applicable procedure for ZnP NPs via biosynthesis route, which included
precipitation of Zinc Nitrate (Zn(NO3)2.6H2O) and diammonium hydrogen phosphate
((NH4)2HPO4) in the presence of Enterobacter aerogenes as the synthetic intermediate. Investigation
of the anti-corrosion behavior of the synthesized NPs was explored on carbon steel in the hydrochloric
acid corrosive environment to provide deeper insight into their unique anti-corrosion properties. Additionally,
their antibacterial activities were also examined against Escherichia coli, Staphylococcus aureus
and Streptococcus mutans.
Results: The results of X-ray Diffraction (XRD), Fourier Transform Infrared (FTIR) spectroscopy,
Field Emission Scanning Electron Microscope (FE-SEM) and the Energy Dispersive X-Ray Spectroscopy
(EDS) analyses confirmed the successful synthesis of ZnP NPs. Moreover, the examinations of
both anti-corrosion and antibacterial properties, revealed that the synthesized NPs could be a promising
Conclusion: ZnP NPs with an average size of 30-35 nm were successfully synthesized via the simple,
suitable biological method. Results implied that these particles could be used as a non-toxic, environmentally
friendly, corrosion-resistant and antibacterial agent instead of toxic and uneco-friendly ones.