Photocatalytic and Conductivity Studies of Bi3+Substituted La2Zr2O7

Trivalent bismuth substituted La2Zr2O7 pyrochlores of compositions La2-xBixZr2O7 (x = 0.2, 0.4 and 0.6) have been prepared by sol-gel method. All the samples were characterized by powder X-ray diffraction, IR spectroscopy, and SEM-EDS. These materials were found to crystallize in cubic lattice with...

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Published inInternational journal of green nanotechnology Vol. 4; no. 3; p. 360
Main Authors Ravi, G, Palla, Suresh, Reddy, J R, Veldurthi, Naveen Kumar, Kumar, B Vijaya, Vithal, M
Format Journal Article
LanguageEnglish
Published Philadelphia Taylor & Francis Ltd 01.07.2012
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Summary:Trivalent bismuth substituted La2Zr2O7 pyrochlores of compositions La2-xBixZr2O7 (x = 0.2, 0.4 and 0.6) have been prepared by sol-gel method. All the samples were characterized by powder X-ray diffraction, IR spectroscopy, and SEM-EDS. These materials were found to crystallize in cubic lattice with space group . The unit cell parameters were deduced from the Rietveld refinement. The dc conductivity of all samples was measured in the temperature range 200-700°C. The photocatalytic activities of the samples were studied against methylene blue decomposition under sunlight. La2-xBixZr2O7 compounds showed enhanced photoactivity compared to La2Zr2O7.
ISSN:1943-0892
1943-0906
DOI:10.1080/19430892.2012.738145