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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},
}