Study of Degradation of Photocatalytic Methyl Orange on Nano NdxCo2-xZr2O7

Yun Shan Bai; Song Chen; Lu De Lu; Jian Chun Bao

doi:10.4028/www.scientific.net/AMR.602-604.169

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 602-604Study of Degradation of Photocatalytic Methyl...

Study of Degradation of Photocatalytic Methyl Orange on Nano Nd_xCo_2-xZr₂O₇

Abstract:

Cubic pyrochlore type Nd_xCo_2-xZr₂O₇ nano-crystals were prepared by salt-assistant glycine solution combustion method (SGCM), with neodymium nitrate, cobalt nitrate and zirconium nitrate as raw materials, glycine as the incendiary agent, and KCl as a reaction inert salt. The Nd_xCo_2-xZr₂O₇ nano-crystals were characterized by means of XRD (X-ray powder diffraction), FT-IR (Fourier trans-form-infrared spectroscopy), Raman spectroscopy, TEM (Transmission electron microscope) and HRTEM (High resolution transmission electron microscopy). The results showed that neodymium ions were partially substituted by cobalt ions, while maintaining the original pyrochlore structure. The nano particles obtained had a perfect crystal structure, good dispersion, and the size was about 31nm. For Nd_1.9Co_0.1Zr₂O₇ nanocrystals, the four strong diffraction peaks were at 2θ=29.18°, 33.80°, 48.49° and 57.53°. The corresponding crystal plane distances calculated by Bragg equation λ = 2dSinθ were 0.306, 0.265, 0.188 and 0.160 nm. With the study of the photocatalytic activity of the product, it is found that compared with the undoped crystals, photocatalytic activity of dopped products had been significantly improved and different doping amount led to different levels of catalytic activity. When n_Nd:n_Co = 9:1, the 2 hours net degradation amount was as high as 83%.

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Advanced Materials Research (Volumes 602-604)

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169-173

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.602-604.169

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Online since:

December 2012

Authors:

Yun Shan Bai, Song Chen, Lu De Lu, Jian Chun Bao

Keywords:

Methyl Orange, Nd_xCo_2-xZr₂O₇, Photocatalytic, Soft Chemistry

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