Synthesis of LaCoO3 nanoparticles by microwave process and their photocatalytic activity under visible light irradiation

Won Young Jung; Seong-Soo Hong

Journal of Industrial and Engineering Chemistry, Vol.19, No.1, 157-160, January, 2013

DOI10.1016/j.jiec.2012.07.018 Export Citation

Synthesis of LaCoO3 nanoparticles by microwave process and their photocatalytic activity under visible light irradiation

Won Young Jung, and Seong-Soo Hong^†

Department of Chemical Engineering, Pukyong National University, 100 Yongdang-dong, Nam-ku, Busan 608-739, Republic of Korea

E-mail:

We have investigated the photocatalytic activity for the decomposition of methyl orange on the LaCoO3 perovskite-type oxides prepared at different conditions using microwave process. In the case of LaCoO3 catalysts calcined above 500 ℃, 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.

Keywords:LaCoO3 perovskite oxides;Microwave process;Photocatalytic decomposition;Methyl orange

[References]

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Niu XS, Li HH, Liu GG, J. Mol. Catal. A-Chem., 232(1-2), 89 (2005)
Ji T, Yang F, Lv Y, Zhou J, Sun J, Journal of Materials Letters., 63, 2044 (2009)
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Bell RJ, Millar GJ, Drennan J, Solid State Ion., 131(3-4), 211 (2000)
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Ding J, Lu X, Shu H, Xie J, Zhang H, Materials Science and Engineering B., 171, 31 (2010)
Anderson DJ, Sale FR, Powder Metallurgy., 21, 14 (1979)
Jonker GH, Van Santen JH, Physica., 19, 120 (1953)
Cullity BD, Elements of X-ray Diffraction, Addison-Wesley, Reading, MA (1978)
Merino NA, Barbero BP, Eloy P, Cadus LE, Appl. Surf. Sci., 253(3), 1489 (2006)
Jung WY, Lee GD, Park SS, Lim KT, Lee MS, Hong SS, Journal of Nanoscience and Nanotechnology., 11, 7446 (2011)
Heinz G, Adam H, Journal of Physical Chemistry., 95, 5261 (1991)
Cherry M, Islam MS, Catlow CRA, Journal of Solid State Chemistry., 118, 125 (1995)
Li F, Liu Y, Liu R, Sun Z, Zhao D, Kou C, Materials Letters., 64, 223 (2010)

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[1] Li FT, Zhao DS, Luo QZ, Liu RH, Yin R, Journal of Ceramic Processing Research., 9, 398 (2008)

[2] Niu XS, Li HH, Liu GG, J. Mol. Catal. A-Chem., 232(1-2), 89 (2005)

[3] Ji T, Yang F, Lv Y, Zhou J, Sun J, Journal of Materials Letters., 63, 2044 (2009)

[4] Ohno T, Tsubota T, Nakamura Y, Sayama K, Appl. Catal. A: Gen., 288(1-2), 74 (2005)

[5] Li J, Wei Z, Nanoscience., 12, 20 (2007)

[6] Bell RJ, Millar GJ, Drennan J, Solid State Ion., 131(3-4), 211 (2000)

[7] Cimino S, Pirone R, Lisi L, Appl. Catal. B: Environ., 35(4), 243 (2002)

[8] Ding J, Lu X, Shu H, Xie J, Zhang H, Materials Science and Engineering B., 171, 31 (2010)

[9] Anderson DJ, Sale FR, Powder Metallurgy., 21, 14 (1979)

[10] Jonker GH, Van Santen JH, Physica., 19, 120 (1953)

[11] Cullity BD, Elements of X-ray Diffraction, Addison-Wesley, Reading, MA (1978)

[12] Merino NA, Barbero BP, Eloy P, Cadus LE, Appl. Surf. Sci., 253(3), 1489 (2006)

[13] Jung WY, Lee GD, Park SS, Lim KT, Lee MS, Hong SS, Journal of Nanoscience and Nanotechnology., 11, 7446 (2011)

[14] Heinz G, Adam H, Journal of Physical Chemistry., 95, 5261 (1991)

[15] Cherry M, Islam MS, Catlow CRA, Journal of Solid State Chemistry., 118, 125 (1995)

[16] Li F, Liu Y, Liu R, Sun Z, Zhao D, Kou C, Materials Letters., 64, 223 (2010)