Study on photodegradation of Azo dye by polyoxometalates/polyvinyl alcohol
来源期刊：Journal of Rare Earths2009年第5期
论文作者：冯长根 卓晓曦 刘霞
文章页码：717 - 722
摘 要：A series of photocatalysts, K11[Ln（PW11O39）2]/PVA （Ln=La, Ce, Pr, Nd, Sm） were prepared by K11[Ln（PW11O39）2] （Ln=La, Ce, Pr, Nd, Sm） containing five kinds of lanthanides and polyvinyl alcohol as the support. The catalysts obtained were characterized by Fourier transform infrared spectra, UV-vis spectra, powder X-ray diffraction, and scanning electron microscopy, indicating that the structure of K11[Ln（PW11O39）2] and polyvinyl alcohol remained intact, respectively. The photocatalysts exhibited efficient catalytic activity to degrade methyl orange, Congo Red, Ponceau 2R. The maximal degradation conversions of the three kinds of dyes were 99.58%, 47.61%, 72.42%, respectively.
冯长根1，卓晓曦1，刘霞2
1. State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology2. College of Science,China Agricultural University
摘 要：A series of photocatalysts, K11[Ln（PW11O39）2]/PVA （Ln=La, Ce, Pr, Nd, Sm） were prepared by K11[Ln（PW11O39）2] （Ln=La, Ce, Pr, Nd, Sm） containing five kinds of lanthanides and polyvinyl alcohol as the support. The catalysts obtained were characterized by Fourier transform infrared spectra, UV-vis spectra, powder X-ray diffraction, and scanning electron microscopy, indicating that the structure of K11[Ln（PW11O39）2] and polyvinyl alcohol remained intact, respectively. The photocatalysts exhibited efficient catalytic activity to degrade methyl orange, Congo Red, Ponceau 2R. The maximal degradation conversions of the three kinds of dyes were 99.58%, 47.61%, 72.42%, respectively.
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