Treatment Wastewater of Oil Refinery by Fe2O3 NPs produce by the novel Alishewanella Jeotgali strain HAQ8.

Hawraa Qays Al-assdy, Department of Biology College of Science, University of Basrah, Iraq; 2Department of Ecology, College of Science, University of Basrah, IraqFollow
Wijdan Hussein Al-Tamimi, Department of Biology College of Science, University of Basrah, Iraq; 2Department of Ecology, College of Science, University of Basrah, Iraq.
Asia Fadhile Almansoory, Department of Biology College of Science, University of Basrah, Iraq; 2Department of Ecology, College of Science, University of Basrah, Iraq.

Abstract

Metal oxide nanoparticles like iron oxide (Fe₂O₃) exhibit strong reactivity and photolytic features in wastewater treatment and serve as an effective adsorbent for water purification due to its substantial surface area and affinity for different functionalized groups. Iron oxide nanoparticles) IONPs) are currently applied to treat oil-contaminated water. Fe₂O₃NPs were produced using an extracellular approach utilizing the Alishewanella jeotgali strain HAQ8. IONPs were characterized using UV-vis, FT-IR, XRD, AFM, SEM-EDX, and Zeta potential. λ max for the synthesized nanoparticles observed at (358) nm. The bands at 485 cm⁻¹ in the FT-IR spectrum confirmed the formation of IONPs. The XRD showed that the IONPs' average crystallite size was (19) nm. According to AFM and SEM analyses, the surface roughness, maximum height, and mean diameter of Fe₂O₃NPs were (4.86, 18.36, and 48.8) nm, respectively, with spherical shapes. The Zeta potential of Fe₂O₃ NPs was (-43) mV. At 0.2 mg/mL Fe₂O₃ NPs, crude oil degradation reached (69.08) %, increasing to (71.4)% at pH 9. Fe₂O₃ NPs' cytotoxicity results indicated they were biocompatible with red blood cells even at the highest concentration. Fe₂O₃NPs produced by bacteria are harmless and non-toxic. Fe₂O₃NPs are expected to be potential candidates for crude oil degradation.

Recommended Citation

Al-assdy, Hawraa Qays; Al-Tamimi, Wijdan Hussein; and Almansoory, Asia Fadhile (2025) "Treatment Wastewater of Oil Refinery by Fe2O3 NPs produce by the novel Alishewanella Jeotgali strain HAQ8.," Karbala International Journal of Modern Science: Vol. 11 : Iss. 2 , Article 7.
Available at: https://doi.org/10.33640/2405-609X.3404