Simple synthesis of NH 2 -functionalized Fe2O3 and its activated carbon composites for removing heavy metal ions

C. L. Zhang, H. D. Cheng, S. Y. Ren, W. P. Zhang, Zhuo Chen, Y. Wang, J. H. Ma, C. S. Zhang, Z. Y. Guo

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    Abstract

    The novel recyclable and biodegradable absorbents NH 2 -Fe 2 O 3 and NH 2 -Fe 2 O 3 /oxidation-activated carbon (NH 2 -Fe 2 O 3 /OAC) with great physical properties and high adsorption for uptake heavy metal ions were synthesized in this work. The NH 2 -Fe 2 O 3 samples were prepared via one-pot hydrothermal methods, typically, FeCl 3 •6H 2 O, ethylene glycol and sodium acetate anhydrous were directly dissolved under stirring, followed by x mL of DETA and 0.1 g of SDS at room temperature (x = 0.5, 1, 2, 3, 4 and 5 mL). The as-prepared NH 2 -Fe 2 O 3 were added into the mixture of oxidation-activated carbon, followed by the cation surfactant CTAB. After reflux condensation, the composites were washed, dried and labeled name NH 2 -Fe 2 O 3 /OAC. Systematically characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectra (FTIR) and X-ray diffraction (XRD), physicochemical properties were all indicated obviously in this paper. The high adsorption rates of the adsorbents achieved over 88.11 % and 98.25 % towards Pb(II). In the ternary solution, the studied heavy metals revealed selective removal sequence: Pb(II) > Cu(II) > Cd(II).

    Original languageEnglish
    Article number052042
    JournalIOP Conference Series: Earth and Environmental Science
    Volume199
    Issue number5
    DOIs
    Publication statusPublished - 19 Dec 2018
    Event2018 1st International Conference on Environment Prevention and Pollution Control Technology, EPPCT 2018 - Tokyo, Japan
    Duration: 9 Nov 201811 Nov 2018

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