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Search: WFRF:(Liu Qingquan) > (2010-2014)

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  • Liu, Qingquan, et al. (author)
  • Regeneration Research of Porous Magnetic Microspheres during Treatment of Wastewater Containing Cationic Dyes
  • 2010
  • In: Separation science and technology (Print). - : Informa UK Limited. - 0149-6395 .- 1520-5754. ; 45:16, s. 2345-2349
  • Journal article (peer-reviewed)abstract
    • The application feasibility of porous magnetic microspheres in the removal of cationic dyes from wastewater was investigated. Various desorption solutions were employed for the recovery of cationic dyes from absorbents and regeneration of porous magnetic microspheres. The results showed that 1M NaCl or 1M KCl in water/methanol co-solvent had excellent desorption ability for methyl violet. This fact was further demonstrated in the removal cationic gold yellow from its aqueous solution. Overall, this provided a simple methodology for the treatment of wastewater containing cationic dyes and the regeneration of porous magnetic microspheres.
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2.
  • Liu, Qingquan, et al. (author)
  • Templated preparation of porous magnetic microspheres and their application in removal of cationic dyes from wastewater
  • 2010
  • In: Journal of Hazardous Materials. - : Elsevier BV. - 0304-3894 .- 1873-3336. ; 181:1-3, s. 586-592
  • Journal article (peer-reviewed)abstract
    • Porous magnetic microspheres with large particle size (350-450 mu m) were prepared with sulfonated macroporous polydivinylbenzene as a template. The preparation process included ferrous ion exchange and following oxidation by hydrogen peroxide. The results showed that the weight fraction of magnetic nanoparticles exceeded 20 wt% in microspheres after the preparation process was repeated three times. X-ray diffraction profiles indicated that the crystalline phase of as-formed magnetic nanoparticles was magnetite (Fe3O4). TEM images revealed rod-like magnetite crystal after the first oxidation cycle, however, the crystal morphologies were transferred into random shape after more oxidation cycles. The applicability of porous magnetic microspheres for removal of cationic dyes from water was also explored. The results exhibited that basic fuchsin and methyl violet could be quickly removed from water with high efficiency. More importantly, the magnetic microspheres could be easily regenerated and repeatedly employed for wastewater treatment. Therefore, a novel methodology was provided for fast removal cationic dyes from wastewater.
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  • Result 1-2 of 2
Type of publication
journal article (2)
Type of content
peer-reviewed (2)
Author/Editor
Wang, Li (2)
Yu, Haojie (2)
Liu, Qingquan (2)
Ericson, Mårten (2)
Xiao, Anguo (2)
Gao, Jingming (1)
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Ding, Wenbing (1)
Huo, Jia (1)
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University
Royal Institute of Technology (2)
Language
English (2)
Research subject (UKÄ/SCB)
Engineering and Technology (2)
Year
2010 (2)

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