Journal of Industrial and Engineering Chemistry

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Synthesis of $LaCoO_3$ nanoparticles by microwave process and their photocatalytic activity under visible light irradiation

  • Jung, Won Young (Department of Chemical Engineering, Pukyong National University) ;
  • Hong, Seong-Soo (Department of Chemical Engineering, Pukyong National University)
  • Published : 2013.01.25
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Abstract

We have investigated the photocatalytic activity for the decomposition of methyl orange on the $LaCoO_3$ perovskite-type oxides prepared at different conditions using microwave process. In the case of $LaCoO_3$ catalysts calcined above $500^{\circ}C$, the formation of the perovskite crystalline phase was confirmed. From the results of UV-Vis DRS, all the catalysts have the similar absorption spectrum up to visible region. The chemisorbed oxygen plays an important role on the photocatalytic decomposition of methyl orange and the higher the contents of chemisorbed oxygen, the better the performance of photocatalyst.

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