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    • Keywords


      Cobalt ferrite; layered double hydroxide; adsorption; Congo Red.

    • Abstract


      MgAl-LDH/CoFe2O4 and MgAl-CLDH/CoFe2O4 nanofibres were prepared by urea-hydrolysed hydrothermal reaction and the subsequent calcinations. The morphology and structure of the products were characterized by X-ray diffraction, scanning electron microscopy and transmission electron microscope and Fourier transformed infrared. The adsorption performance of MgAl-LDH/CoFe2O4 and MgAl-CLDH/CoFe2O4 nanofibres for the removal of an anionic dye (Congo Red, CR) from aqueous solution was investigated. The results showed that MgAl-LDH/CoFe2O4 and MgAl-CLDH/CoFe2O4 nanofibres are particularly efficient in removing CR. The adsorption follows a pseudo-second-order kinetic model and best fits the Langmuir isotherm model. The maximum adsorption capacities of MgAl-LDH/CoFe2O4 and MgAl-CLDH/CoFe2O4 nanofibres for CR were found to be 213.2 and 49.8 mg g−1, respectively. The both adsorption processes were found to be spontaneous and exothermic in nature.

    • Author Affiliations


      Zhigang Jia1 Shengbiao Li1 Jianhong Liu1 Qi Qin1 Rongsun Zhu1

      1. School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan 243002, Anhui Province, PR China
    • Dates

  • Bulletin of Materials Science | News

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      Posted on July 25, 2019

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