Adsorption and Removal of Congo Red Dye from Aqueous Solution by Using Nano-Fe₃O₄

Abstract:

In this paper, nano-Fe3O4 as sorbent was used to remove Congo red dye from aqueous solution, in order to investigate its adsorption properties. Fe3O4 nano-particles were synthesized by hydrothermal method, and were characterized by Scanning Electron Microscope (SEM), Fourier Transform Infrared Spectroscopy (FT-IR) and X-ray Powder Diffraction (XRD) to examine their size, morphology and property. The adsorption and removal of Congo red dye from aqueous solution on nano-Fe3O4 was studied in batch equilibrium experiments. These results showed an excellent adsorption capability for Congo red with a maximum adsorption capacity of 1395mg•g-1 at 20°C and pH2.0. It indicates that Fe3O4 nano-particles can be effectively used to remove color from wastewater containing dyes.

• Periodical: Advanced Materials Research (Volumes 503-504)
• Pages: 262-265
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.503-504.262
• Online since: April 2012
• Authors: Zhu Xing Tang, Yin Chen, Jun Xue, Shuang Yue
• Keywords: Adsorption, Congo Red, Fe₃O₄ Nanoparticle, Removal

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