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@ARTICLE{Malengreaux:819968,
      author       = {Malengreaux, Charline M. and Pirard, Sophie L. and
                      Léonard, Géraldine and Mahy, Julien G. and Herlitschke,
                      Marcus and Klobes, Benedikt and Hermann, Raphaël and
                      Heinrichs, Benoît and Bartlett, John R.},
      title        = {{S}tudy of the photocatalytic activity of {F}e$^{3+}$,
                      {C}r$^{3+}$, {L}a$^{3+}$ and {E}u$^{3+}$ single-doped and
                      co-doped {T}i{O}$_{2}$ catalysts produced by aqueous sol-gel
                      processing},
      journal      = {Journal of alloys and compounds},
      volume       = {691},
      issn         = {0925-8388},
      address      = {Lausanne},
      publisher    = {Elsevier},
      reportid     = {FZJ-2016-05535},
      pages        = {726 - 738},
      year         = {2017},
      abstract     = {An aqueous sol-gel process, previously developed for
                      producing undoped and Cu2+, Ni2+, Zn2+ or Pb2+ doped TiO2
                      photocatalysts with remarkably high photocatalytic activity
                      without requiring any calcination step, has been adapted to
                      produce Fe3+, Cr3+, La3+ or Eu3+ single-doped TiO2
                      photocatalysts as well as La3+-Fe3+ and Eu3+-Fe3+ co-doped
                      TiO2 catalysts. The physicochemical properties of the
                      obtained catalysts have been characterized using a suite of
                      complementary techniques, including ICP-AES, XRD, UV–Vis
                      spectroscopy, nitrogen adsorption-desorption and Fe-57
                      Mössbauer. The active crystalline phase is obtained without
                      requiring any calcination step and all the different
                      catalysts are composed of nanocrystallites of anatase with a
                      size of 6–7 nm and a high specific surface area varying
                      from 181 to 298 m2 g−1. In this study, the effect of the
                      NO3:Ti(IV) mole ratio used to induce the peptisation
                      reaction during the synthesis has been studied and the
                      results revealed that this ratio can influence significantly
                      the textural properties of the resulting catalyst.A
                      screening of the photocatalytic activity of the undoped and
                      Fe3+, Cr3+, La3+ or Eu3+ single-doped and co-doped
                      photocatalysts has been performed by evaluating the
                      degradation of 4-nitrophenol under UV–Visible light (330
                      nm < λ < 800 nm). This study suggests that the
                      photocatalytic activity is significantly influenced by the
                      dopant nature and content with an optimal dopant content
                      being observed in the case of Fe3+ or La3+ single-doped as
                      well as in the case of La3+-Fe3+ and Eu3+-Fe3+ co-doped
                      catalysts. In the case of Cr3+ single-doped catalysts, a
                      detrimental effect of the dopant on the photocatalytic
                      degradation of 4-nitrophenol has been observed while no
                      significant influence of the dopant has been detected in the
                      case of Eu3+ single-doped catalysts. The role of the
                      different dopants in modulating the photocatalytic activity
                      is discussed.},
      cin          = {JCNS-2 / PGI-4 / JARA-FIT},
      ddc          = {670},
      cid          = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
                      $I:(DE-82)080009_20140620$},
      pnm          = {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)POF3-144 / 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},
      UT           = {WOS:000386227900091},
      doi          = {10.1016/j.jallcom.2016.08.211},
      url          = {https://juser.fz-juelich.de/record/819968},
}