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Preparation of NH 2 -Functionalized Fe 2 O 3 and Its Chitosan Composites for the Removal of Heavy Metal Ions

Author

Listed:
  • Jing Qian

    (College of Environment and Planning, Henan University, Kaifeng 475001, China)

  • Tianjiao Yang

    (Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China)

  • Weiping Zhang

    (College of Environment and Planning, Henan University, Kaifeng 475001, China)

  • Yuchen Lei

    (College of Environment and Planning, Henan University, Kaifeng 475001, China)

  • Chengli Zhang

    (College of Environment and Planning, Henan University, Kaifeng 475001, China
    Institute of Natural Resources and Environment, Henan University, Kaifeng 475001, China)

  • Jianhua Ma

    (College of Environment and Planning, Henan University, Kaifeng 475001, China
    Institute of Natural Resources and Environment, Henan University, Kaifeng 475001, China)

  • Chaosheng Zhang

    (School of Geography and Archaeology, National University of Ireland, H91 CF50 Galway, Ireland)

Abstract

NH 2 -Fe 2 O 3 and NH 2 -Fe 2 O 3 /chitosan (NH 2 -Fe 2 O 3 /CS) with excellent physical properties and high adsorption capacities for several heavy metal ions were synthesized using a one-pot hydrothermal method. The materials were characterized by scanning electron microscopy (SEM), electron dispersive spectroscopy (EDS), transmission electron microscopy (TEM), and X-ray diffraction (XRD). Physicochemical properties were determined by the Fourier transform infrared spectra (FTIR) and nitrogen adsorption analysis (Brunauer–Emmett–Teller (BET) method). The results of the characterization studies show that the material is uniformly dispersed and has good crystallinity and well-defined porous particles. The material is mesoporous, and the particles have a specific surface area of 55.41–233.03 m 2 ·g −1 , a total pore volume of 0.24–0.54 cm 3 ·g −1 , and a diameter of 3.83–17.56 nm. Additional results demonstrate that NH 2 -Fe 2 O 3 and NH 2 -Fe 2 O 3 /CS are effective adsorbents for the removal of heavy metal ions from solution. In a ternary system, the order of their selective adsorption was determined to be Pb(II) > Cu(II) > Cd(II), and the adsorption rate of Pb(II) was much higher than that of Cu(II) and Cd (II). The metal ion adsorption capacity of NH 2 -Fe 2 O 3 and NH 2 -Fe 2 O 3 /CS makes them promising adsorbents for wastewater cleanup.

Suggested Citation

  • Jing Qian & Tianjiao Yang & Weiping Zhang & Yuchen Lei & Chengli Zhang & Jianhua Ma & Chaosheng Zhang, 2019. "Preparation of NH 2 -Functionalized Fe 2 O 3 and Its Chitosan Composites for the Removal of Heavy Metal Ions," Sustainability, MDPI, vol. 11(19), pages 1-10, September.
    • Handle: RePEc:gam:jsusta:v:11:y:2019:i:19:p:5186-:d:269500
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    References listed on IDEAS

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    1. Shanshan Li & Meng Wang & Zhongqiu Zhao & Changbao Ma & Shibao Chen, 2018. "Adsorption and Desorption of Cd by Soil Amendment: Mechanisms and Environmental Implications in Field-Soil Remediation," Sustainability, MDPI, vol. 10(7), pages 1-14, July.
    2. Abdulaziz G. Alghamdi & Hesham M. Ibrahim, 2019. "Effect of Macro- and Nano-Biosolid Fractions on Sorption Affinity and Transport of Pb in a Loamy Sand Soil," Sustainability, MDPI, vol. 11(12), pages 1-12, June.
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