Green synthesis of Fe nanoparticles using eucalyptus leaf extracts for treatment of eutrophic wastewater

Sci Total Environ. 2014 Jan 1:466-467:210-3. doi: 10.1016/j.scitotenv.2013.07.022. Epub 2013 Jul 27.

Abstract

Iron nanoparticles were firstly synthesized through a one-step room-temperature biosynthetic route using eucalyptus leaf extracts (EL-Fe NPs). Scanning electron microscopy (SEM) and X-ray energy-dispersive spectrometer (EDS) confirmed the successful synthesis of the spheroidal iron nanoparticles. Furthermore, X-ray diffraction (XRD) and Fourier Transform Infrared spectrometer (FTIR) indicated that some polyphenols are bound to the surfaces of EL-Fe NPs as a capping/stabilizing agent. Reactivity of EL-Fe NPs was evaluated for the treatment of swine wastewater and results indicated that 71.7% of total N and 84.5% of COD were removed, respectively. This demonstrated the tremendous potential of EL-Fe NPs for in situ remediation of eutrophic wastewater.

Keywords: Characterization; Eucalyptus leaf; Eutrophication; Green synthesis; Iron nanoparticles.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • China
  • Eucalyptus / chemistry*
  • Iron / chemistry*
  • Metal Nanoparticles / chemistry*
  • Microscopy, Electron, Scanning
  • Plant Extracts / chemistry*
  • Plant Leaves / chemistry
  • Spectrometry, X-Ray Emission
  • Spectroscopy, Fourier Transform Infrared
  • Swine
  • Waste Disposal, Fluid / methods*
  • Wastewater / analysis
  • X-Ray Diffraction

Substances

  • Plant Extracts
  • Waste Water
  • Iron