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Facile synthesis of FeFe2O4 magnetic nanomaterial for removing methylene blue from aqueous solution

Progress in natural science, 2019-12, Vol.29 (6), p.648-654 [Peer Reviewed Journal]

2020 Chinese Materials Research Society ;Copyright © Wanfang Data Co. Ltd. All Rights Reserved. ;ISSN: 1002-0071 ;DOI: 10.1016/j.pnsc.2019.11.009

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  • Title:
    Facile synthesis of FeFe2O4 magnetic nanomaterial for removing methylene blue from aqueous solution
  • Author: Dinh, Van-Phuc ; Tran, Ngoc Quyen ; Le, Nguyen-Que-Tran ; Tran, Quang-Huy ; Nguyen, Trinh Duy ; Le, Van Tan
  • Subjects: Adsorption ; Adsorption mechanism ; FeFe2O4 magnetic nanomaterial ; Methylene blue
  • Is Part Of: Progress in natural science, 2019-12, Vol.29 (6), p.648-654
  • Description: A facile and simple chemical precipitation method was utilized to synthesize FeFe2O4 magnetic nanomaterial for removing methylene blue (MB) from aqueous solution. Characterizations of this material were examined by using XRD, SEM, FT-IR, TGA-DTG and BET methods. Factors affecting the uptake of methylene blue, including pH, adsorption time, and MB initial concentration were also studied. The measured data were fitted by using four isotherm models including Langmuir, Freundlich, Sips and Temkin. Results showed that the Sips model offers the best fit to the data. In addition, the monolayer MB adsorption capacity obtained from the Langmuir model was 42.35 mg g−1 under the optimal conditions of pH = 10 and adsorption time = 80 min. In particular, the uptake of MB onto FeFe2O4 magnetic nanomaterial obtained from the kinetic and mechanism studies of the adsorption was in good agreement with prediction of the pseudo-first-order model, whereas the electrostatic interaction was found to play a primary mechanism. FeFe2O4 magnetic nanomaterial has been synthesized via a fast and simple chemical method at room temperature. Here, the solution of 2.0 g sodium hydroxide was gradually added to the solution of 6.975 g FeSO4·7H2O. The obtained mixture was shaken in 5 h at 1000 revolutions per minute (rpm). The reaction solution was changed from light blue to brown-black. Then, the brown-black mixture was dried at 100 °C in 8 h to obtain black FeFe2O4 magnetic nanomaterial, prior to be characterized by XRD, SEM, FT-IR, TGA and BET methods. Lastly, this material was utilized as an adsorbent to remove methylene blue from aqueous solution. [Display omitted] •FeFe2O4 magnetic nanomaterial has been synthesized via a fast and simple chemical method at room temperature.•Characteristics of FeFe2O4 magnetic nanomaterial were investigated by using XRD, SEM, FT-IR, TGA and BET methods.•This magnetic nanomaterial was utilized as a novel adsorbent to remove methylene blue (MB) from aqueous solution.•Electrostatic attraction plays as a primary mechanism for the removal of MB from aqueous solution by FeFe2O4 magnetic nanomaterial.
  • Publisher: Elsevier B.V
  • Language: English
  • Identifier: ISSN: 1002-0071
    DOI: 10.1016/j.pnsc.2019.11.009
  • Source: Alma/SFX Local Collection
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