Sol–gel synthesis of Sm2InTaO7 and its photocatalytic activity on degradation of crystal violet dye and reduction of Cr(VI) ions
This paper reports the synthesis of Sm 2 InTaO 7 and its photocatalytic activity on the degradation of crystal violet dye and reduction of Cr(VI) ions in aqueous solution. Sm 2 InTaO 7 was prepared by sol–gel method at 1,200 °C. For comparison purposes, Sm 2 InTaO 7 was prepared also by solid-state...
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Published in | Research on chemical intermediates Vol. 39; no. 4; pp. 1533 - 1544 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Dordrecht
Springer Netherlands
01.04.2013
|
Subjects | |
Online Access | Get full text |
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Summary: | This paper reports the synthesis of Sm
2
InTaO
7
and its photocatalytic activity on the degradation of crystal violet dye and reduction of Cr(VI) ions in aqueous solution. Sm
2
InTaO
7
was prepared by sol–gel method at 1,200 °C. For comparison purposes, Sm
2
InTaO
7
was prepared also by solid-state reaction at 1,400 °C. The evolution of the crystalline phases of the sol–gel sample with the annealing temperature was followed by X-ray diffraction. The cubic crystalline structure of Sm
2
InTaO
7
was determined by Rietveld refinement method. Specific surface area was 5 m
2
g
−1
for sol–gel sample and 1 m
2
g
−1
for solid-state sample, whereas energy band gap was around 3.5 eV. Sm
2
InTaO
7
prepared by sol–gel method showed better photocatalytic activity than Sm
2
InTaO
7
prepared by solid-state reaction for the mineralization of crystal violet dye and reduction of Cr(VI) solution under UV-light irradiation. |
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ISSN: | 0922-6168 1568-5675 |
DOI: | 10.1007/s11164-012-0618-6 |