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Hematite Nanoparticles-Embedded Activated Carbon For Enhancing Removal Of Pollutants From Wastewater

Author

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  • ZEZHONG XU

    (Analytical and Testing Center, Hefei University, Hefei, Anhui 230601, P. R. China)

  • YOUPENG HUANG

    (Analytical and Testing Center, Hefei University, Hefei, Anhui 230601, P. R. China)

  • CHENGLIANG HAN

    (Department of Chemical and Materials Engineering, Hefei University, Hefei, Anhui 230601, P. R. China)

Abstract

All kinds of heavy metal ions and synthetic dyes in water will produce serious environmental problems and damage to the human body. Activated carbon (AC)/hematite (H; α-Fe2O3) nanocomposites (ACH nanocomposites) have been prepared using a hydrothermal method in ferric citric alkaline solution. The microstructure, chemical composition and properties of as-prepared ACH nanocomposites were investigated, respectively. It has been proved that α-Fe2O3 nanoparticles embedded on the surface of AC greatly improved the hydrophilicity of AC. Results further showed that ACH nanocomposites could be used as adsorbents to effectively remove Cr6+ and Cu2+ from wastewater. The sorption process for Cr6+ and Cu2+ ions met the pseudo-second-order equation. The maximum adsorption capacities of Cu2+ and Cr6+ by ACH were about 20 mg/g and 21 mg/g, respectively. In addition, some organic dyes such as methylene blue (MB) and rhodamine B (RhB) could also be degraded completely by ACH composites. Therefore, it is expected that ACH nanocomposites can be regarded as promising adsorbents and low-cost Fenton-like nanocomposites for the removal of pollutants from aqueous solution.

Suggested Citation

  • Zezhong Xu & Youpeng Huang & Chengliang Han, 2022. "Hematite Nanoparticles-Embedded Activated Carbon For Enhancing Removal Of Pollutants From Wastewater," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 29(12), pages 1-7, December.
    • Handle: RePEc:wsi:srlxxx:v:29:y:2022:i:12:n:s0218625x2250161x
    DOI: 10.1142/S0218625X2250161X
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