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Uv and Visible-Assisted Photocatalytic Degradation of Pharmaceutical Pollutants in the Presence of Rational Designed Biogenic Fe3o4-Au Nanocomposite Publisher



Yousefi M1 ; Zandavar H2 ; Pourmortazavi SM2 ; Rajabi HR3 ; Sajadiasl F3 ; Ganjali MR4, 5 ; Mirsadeghi S6
Authors
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Authors Affiliations
  1. 1. Student Research Committee, Department of Food Science and Technology, Faculty of Nutrition and Food Science, Tabriz University of Medical Sciences, Tabriz, Iran
  2. 2. Faculty of Chemistry and Chemical Engineering, Malek Ashtar University of Technology, Tehran, Iran
  3. 3. Chemistry Department, Yasouj University, Yasouj, 75918-74831, Iran
  4. 4. Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran
  5. 5. Biosensor Research Center, Endocrinology & Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
  6. 6. Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, 1411713137, Iran

Source: Environmental Science and Pollution Research Published:2021


Abstract

In this study, we designed Fe3O4 nanoparticles and heterogeneous Fe3O4-Au nanocomposites with a mean size of 21 and 27 nm that synthesized by Foeniculum vulgare seed extract to photodegrade organic micropollutants under UV and visible light irradiation. The physiochemical characteristics of biogenic nanoparticles/nanocomposite are described by XRD, FTIR, UV-Vis, SEM, EDX, and X-ray elemental mapping. In the presence of nanoparticles and nanocomposites under UV irradiation, the total degradation of contaminants is about 85–90% after 2100 s, while under visible light irradiation, degradation efficiencies are about 70–85% after 4800-s irradiation. Total organic carbon analysis results confirmed photodegradation efficacies. Also, the scavenger’s experiments show that hydroxyl radical is the most important specie in the degradation of pollutant model. It can be concluded clearly that Fe3O4 green nanoparticles and Fe3O4-Au green nanocomposite are very simple and effective photocatalyst for degradation of organic pollutants in very short time under illumination. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.
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