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Synthesis of Fe (Co or Ni) Loaded Mesoporous Carbon Composites and Their Adsorption Behaviors for Methyl Orange

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Mesoporous carbon (CMK-3) was synthesized by hard template method using SBA-15 as template and sucrose as carbon source. The magnetic mesoporous carbon materials (Fe/CMK-3, Co/CMK-3, Ni/CMK-3) were prepared by a simple impregnation method. The samples were characterized by XRD, SEM, TEM, N2 physical adsorption, and the adsorption process was investigated by varying the contact time, temperature, pH, adsorbent dose and initial dye concentration. The results showed that the maximum adsorption capacity of methyl orange (MO) on the Fe/CMK-3, Co/CMK-3 and Ni/CMK-3 were 187, 157 and 166 mg ยท g-1, respectively. The equilibrium data were described using the Langmuir and Freundlich isotherms. It was found that the equilibrium data were best represented by the Langmuir isotherm model. The experimental data were fitted well by the pseudo-second-order kinetic model. Thermodynamic analysis revealed that the adsorption was an exothermic and spontaneous process. The negative ΔS Θ suggested decreasing in randomness of adsorbent species. The adsorbents are easy to be recycled in the magntic field.
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Keywords: Adsorption Behavior; Magnetic Mesoporous Carbon Composite; Mesoporous Carbon; Methyl Orange

Document Type: Research Article

Affiliations: School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China

Publication date: August 1, 2017

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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