Alumina Surface Coating with Zinc Oxide Nanostructures by Hydrothermal Method for Removal of Organic Pollutants from Water

Document Type : Original Article

Authors

1 Advanced Materials Research Center, Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran

2 Department of Safety Health and Environment, Najafabad Branch, Islamic Azad University, Najafabad, Iran

Abstract

Water pollution is one of the recent problems of societies. In recent years, there has been a lot of focus on finding new ways to purify water. In addition, the usual and old purification methods cannot effectively remove new chemical pollutants from water. Therefore, these pollutants inflict lots of problems including different diseases. Thus, new methods and materials that can effectively remove these chemicals from water are important. New absorbents have been one of the hot topics for researchers in recent years. In this research, alumina particles were coated with zinc oxide via hydrothermal method. The produced nanocomposites were utilized to remove organic pollutants from water. X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM) and Zeta potential were used to characterize the nanocomposites. X-ray diffraction results showed that an alumina-zinc oxide nanocomposite was well formed. The formation reactions of nanostructured zinc oxide on the alumina were also discussed. Microstructural studies showed that the size of zinc oxide particles was about 45 nm and zinc oxide particles were composed of nano-size layers. The adsorption results exhibited that the dye removal efficiency of the nanocomposite was significantly increased compared to the pure single-phase alumina. 98% of the methyl orange was removed by the nanocomposite sample within 15 minutes.

Keywords

Main Subjects

References

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Journal of Advanced Materials in Engineering (Esteghlal)
Volume 42, Issue 4
March 2024
Pages 33-44

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