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@INPROCEEDINGS{Pliekhova:390616,
      author       = {Pliekhova, Olena and Arcon, Iztok and Stangar, Urska
                      Lavrencic},
      title        = {{S}tructural analysis of sunlight efficient {C}u and {Z}r
                      modified $\mathrm{{T}i{O}_{2}}$ photocatalyst},
      school       = {University of Nova Gorica},
      reportid     = {PUBDB-2017-09673},
      year         = {2017},
      abstract     = {Solving of the renewable energy as well as environmental
                      sustainability issues is on the top ofconsideration
                      nowadays. Using abundant, inexpensive, nontoxic and
                      efficient material,photocatalysis can be a great alternative
                      and promising approach for many important processes [1].The
                      most known (due to its availability and appropriate
                      properties) photocatalyst is TiO2. However,it is only
                      activated by irradiation at wavelengths shorter than 400 nm.
                      To effectively utilize lightwith longer wavelength (visible
                      spectrum) metal and non-metal doping were explored
                      [2].Nevertheless, quantum yield of electronic process under
                      visible light in doped materials is muchlower than under UV,
                      due to crystal defects and generation of recombination
                      centers. On the otherhand the surface modification process
                      is very attractive because the visible-light activity can
                      beinduced without changes in crystal structure. Most
                      probably, visible light sensitivity can beachieved by the
                      interfacial charge transfer process of excited TiO2
                      electrons to the modifier [3].Evonik Degussa P25 is one of
                      the most efficient photocatalyst, showing photocatalytic
                      activity evenunder the visible light [4]. The surface
                      modification of TiO2 with two different
                      elementssimultaneously finds its place among different
                      approaches. The improvement in the activity of TiO2modified
                      with appropriate combination of two or more elements is
                      assigned to the existence ofsynergistic effect. The
                      promising combination for sunlight driven TiO2
                      photocatalysis is acombination of Cu and Zr for TiO2 surface
                      modification [5].The objective of our research is to improve
                      photocatalytic properties of P25 by facile
                      surfacemodification method with Cu and Zr, to find the
                      correlation between catalytic and structuralproperties of
                      modified P25 materials, and to identify the synergistic role
                      of the two elements. Wereport on the results of Cu and Zr
                      K-edge EXAFS (Extended X-ray Absorption Fine
                      Structure)analysis of Cu and Zr chemical state and local
                      environment in the surface modified P25photocatalyst.},
      month         = {Jun},
      date          = {2017-06-18},
      organization  = {The 21st International Conference on
                       Solid State Ionics, Padua (Italy), 18
                       Jun 2017 - 23 Jun 2017},
      cin          = {DOOR},
      cid          = {I:(DE-H253)HAS-User-20120731},
      pnm          = {6G3 - PETRA III (POF3-622) / FS-Proposal: I-20160044 EC
                      (I-20160044-EC)},
      pid          = {G:(DE-HGF)POF3-6G3 / G:(DE-H253)I-20160044-EC},
      experiment   = {EXP:(DE-H253)P-P65-20150101},
      typ          = {PUB:(DE-HGF)24},
      doi          = {10.3204/PUBDB-2017-09673},
      url          = {https://bib-pubdb1.desy.de/record/390616},
}