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Synthesis of Fe3O4/Alginate composite for dye removal from aqueous solution

Vietnam journal of chemistry, 2020-04, Vol.58 (2), p.185-190 [Peer Reviewed Journal]

2020 Vietnam Academy of Science and Technology, Hanoi & Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim ;ISSN: 0866-7144 ;EISSN: 2572-8288 ;DOI: 10.1002/vjch.201900151

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  • Title:
    Synthesis of Fe3O4/Alginate composite for dye removal from aqueous solution
  • Author: Minh, Vu Xuan ; Hanh, Le Thi My ; Lan, Pham Thi ; Van Bien, Tran ; Dung, Nguyen Tuan
  • Subjects: adsorbents ; alginate ; dye removal ; Magnetic composite
  • Is Part Of: Vietnam journal of chemistry, 2020-04, Vol.58 (2), p.185-190
  • Description: Currently, in Vietnam, the textile industry is developing strongly, accompanied by the problem of wastewater pollution is becoming more serious. The most difficult to treat in textile waste water is residue dye. Research on the production of adsorbents of natural origin, environmentally friendly and recyclable is one of the high potential socio‐economic solutions. In this study, water treatment composite beads were synthesized from the natural alginate product of Nha Trang Institute of Technology Research and Application and nano magnetite particles. Batch adsorption experiments of anionic dye (methyl orange) and cationic dye (methylene blue) showed that the composite beads adsorbed very well MB at high pH (pH > 2.5), and almost without MO adsorption. The equilibrium adsorption time is found to be 240 minutes. The experimental adsorption data were analyzed using Langmuir and Freundlich isotherms, and the results showed that Langmuir isotherm fits well the MB adsorption on Fe3O4/Alg composite bead, with the adsorption capacity, qmax, of 555 mg/g. The desorption with various solutions showed that 0.1 M HCl and 0.1 M CaCl2 solutions were used for the desorption with an efficiency of 90 %.
  • Publisher: Weinheim: WILEY‐VCH Verlag GmbH & Co. KGaA
  • Language: English
  • Identifier: ISSN: 0866-7144
    EISSN: 2572-8288
    DOI: 10.1002/vjch.201900151
  • Source: Alma/SFX Local Collection
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