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@ARTICLE{Hanbali:887687,
      author       = {Hanbali, Ghadir and Jodeh, Shehdeh and Hamed, Othman and
                      Bol, Roland and Khalaf, Bayan and Qdemat, Asma and Samhan,
                      Subhi},
      title        = {{E}nhanced {I}buprofen {A}dsorption and {D}esorption on
                      {S}ynthesized {F}unctionalized {M}agnetic {M}ultiwall
                      {C}arbon {N}anotubes from {A}queous {S}olution},
      journal      = {Materials},
      volume       = {13},
      number       = {15},
      issn         = {1996-1944},
      address      = {Basel},
      publisher    = {MDPI},
      reportid     = {FZJ-2020-04348},
      pages        = {3329 -},
      year         = {2020},
      abstract     = {In recent years, concerns have been raised about the
                      occurrence of active raw materials and pharmaceutical
                      ingredients that may be present in water, including
                      wastewater, in the pharmaceutical industry. Wastewater
                      treatment methods are not enough to completely remove active
                      pharmaceuticals and other waste; thus, this study aims to
                      assess the use of a multiwall carbon nanotube after
                      derivatization and magnetization as a new and renewable
                      absorbent for removing ibuprofen from an aqueous medium. The
                      adsorbents were prepared by first oxidizing a multiwall
                      carbon nanotube and then deriving the oxidized product with
                      hydroxyl amine (m-MWCNT–HA), hydrazine (m-MWCNT–HYD),
                      and amino acid (m-MWCNT–CYS). Adsorbents were
                      characterized by Raman spectroscopy, Fourier Transform
                      infrared spectroscopy (FTIR), scanning electron microscopy
                      (SEM and TEM), Brunauer–Emmett–Teller surface area
                      analysis (BET), thermogravimetric analysis (TGA), and
                      vibrating sample magnetometer (VSM). Batch adsorption
                      studies were conducted to study the effects of pH,
                      temperature, time, and initial concentration of the
                      adsorbate. Adsorption isotherm, kinetics, and thermodynamics
                      studies were also conducted. The results show that the
                      optimal pH for nearly complete removal of Ibu in a short
                      time at room temperature was 4 for three adsorbents. The
                      adsorption followed the Langmuir isotherm model with
                      pseudo-second-order kinetics. The percentage of removal of
                      ibuprofen reached up to $98.4\%,$ $93\%,$ and $61.5\%$ for
                      m-MWCNT–CYS, m-MWCNT–HYD, and m-MWCNT–HA respectively.
                      To the best of our knowledge, the grafted MWCNTs presented
                      in this work comprise the first example in the literature of
                      oxidized MWCNT modified with such functionalities and
                      applied for ibuprofen removal},
      cin          = {IBG-3 / PGI-4 / JARA-FIT / JCNS-2},
      ddc          = {600},
      cid          = {I:(DE-Juel1)IBG-3-20101118 / I:(DE-Juel1)PGI-4-20110106 /
                      $I:(DE-82)080009_20140620$ / I:(DE-Juel1)JCNS-2-20110106},
      pnm          = {255 - Terrestrial Systems: From Observation to Prediction
                      (POF3-255) / 144 - Controlling Collective States (POF3-144)
                      / 524 - Controlling Collective States (POF3-524) / 6212 -
                      Quantum Condensed Matter: Magnetism, Superconductivity
                      (POF3-621) / 6213 - Materials and Processes for Energy and
                      Transport Technologies (POF3-621) / 6G4 - Jülich Centre for
                      Neutron Research (JCNS) (POF3-623)},
      pid          = {G:(DE-HGF)POF3-255 / G:(DE-HGF)POF3-144 /
                      G:(DE-HGF)POF3-524 / G:(DE-HGF)POF3-6212 /
                      G:(DE-HGF)POF3-6213 / G:(DE-HGF)POF3-6G4},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:32726973},
      UT           = {WOS:000559576800001},
      doi          = {10.3390/ma13153329},
      url          = {https://juser.fz-juelich.de/record/887687},
}