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Preparation and Photocatalytic Properties of Ti 1− x Zr x O 2 Solid Solution
Author(s) -
Gao BiFen,
Ma Ying,
Cao YaAn,
Gu ZhanJun,
Zhang GuangJin,
Yao JianNian
Publication year - 2007
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200790091
Subject(s) - solid solution , raman spectroscopy , zirconium , x ray photoelectron spectroscopy , anatase , amorphous solid , rutile , chemistry , photocatalysis , aqueous solution , x ray crystallography , analytical chemistry (journal) , nuclear chemistry , inorganic chemistry , diffraction , crystallography , chemical engineering , catalysis , biochemistry , physics , organic chemistry , chromatography , optics , engineering
A series of Ti 1− x Zr x O 2 materials were synthesized through a multistep sol‐gel process. The structural characteristics were investigated using X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS) and Raman measurements. The experimental results showed that a solid solution could be obtained at low Zr/(Ti+Zr) molar ratios ( x ≦0.319). Raman measurements exhibited that the presence of zirconium in the solid solutions greatly retarded the amorphous‐anatase and anatase‐rutile transitions. The diffuse reflectance UV‐Vis spectra revealed that the bandgap of the solid solution was enlarged gradually with the increment of incorporated zirconium content. The Ti 1− x Zr x O 2 solid solutions exhibited higher photocatalytic activity than pure TiO 2 for the degradation of 4‐chlorophenol aqueous solution.