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@ARTICLE{Siljeg:87242,
      author       = {Siljeg, M. and Cerjan Stefanovic, S. and Mazaj, M. and
                      Novak Tusar, N. and Arcon, I. and Kovac, J. and Margeta, K.
                      and Kaucic, V. and Zabukovec Logar, N. and DESY},
      title        = {{S}tructure {I}nvestigation of {A}s({III})- and
                      {A}s({V})-{S}pecies {B}ound to {F}e-{M}odified
                      {C}linoptilolite {T}uffs},
      journal      = {Microporous and mesoporous materials},
      volume       = {118},
      issn         = {1387-1811},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {PHPPUBDB-8293},
      pages        = {408-415},
      year         = {2009},
      note         = {(c) Elsevier. No copyright permission for full text.
                      Volltext von DESY aus zugaenglich, siehe DOI! Embargo for
                      post referee version 1 year from 18.09.2008.},
      abstract     = {The structure of ($AsO_{2})^{−}$- and
                      $(HAsO_{4})^{2−}$-modified clinoptilolite samples from the
                      two deposits (Vranjska Banja, Serbia and Donje Jesenje,
                      Croatia) was studied using powder X-ray diffraction (XRPD),
                      scanning electron microscopy (SEM), energy dispersive X-ray
                      analysis (EDXS) and X-ray photoelectron spectroscopy (XPS).
                      Local environment of As ions was investigated by X-ray
                      absorption spectroscopy (XAS). The pretreatment of
                      clinoptilolite tuff by using first NaCl and later $FeCl_{3}$
                      solutions resulted in an arsenic uptake of up to 1.2 wt.\%,
                      whereas no As-uptake could be detected in the untreated
                      zeolite. The X-ray photoelectron spectroscopy depth profile
                      analyses of ($AsO_{2})^{−}$- and
                      $(HAsO_{4})^{2−}$-modified samples show that As
                      concentrations decrease from the surfaces towards the
                      subsurface region of crystallites suggesting that the As
                      atoms are mainly located at surfaces of crystallites. EXAFS
                      (extended X-ray absorption fine structure) and XANES (X-ray
                      absorption near edge structure) analysis revealed that
                      arsenic cations in the samples arrange in the form of
                      oxo-complexes attached to the iron cations on the surface of
                      the clinoptilolite. The posttreatment of the samples with
                      three different solutions of HCl confirmed irreversible
                      sorption of arsenic in the zeolite by the chemisorption
                      mechanism.},
      cin          = {HASYLAB(-2012)},
      ddc          = {530},
      cid          = {$I:(DE-H253)HASYLAB_-2012_-20130307$},
      pnm          = {DORIS Beamline C (POF1-550) / FS-Proposal: II-20080058 EC
                      (II-20080058-EC)},
      pid          = {G:(DE-H253)POF1-C-20130405 / G:(DE-H253)II-20080058-EC},
      experiment   = {EXP:(DE-H253)D-C-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000262601100054},
      doi          = {10.1016/j.micromeso.2008.09.009},
      url          = {https://bib-pubdb1.desy.de/record/87242},
}