Synthesis of Pb x Cr1−x MoO4 oxides using microwave process and their photocatalytic activity under visible light irradiation
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  • 作者:Young In Song ; Seong-Soo Hong
  • 关键词:Chromium ; substituted lead molybdate (PbCr1−x Mo x O4) ; Microwave ; assisted hydrothermal process ; Photocatalytic decomposition of rhodamine B
  • 刊名:Research on Chemical Intermediates
  • 出版年:2016
  • 出版时间:January 2016
  • 年:2016
  • 卷:42
  • 期:1
  • 页码:367-377
  • 全文大小:1,194 KB
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  • 作者单位:Young In Song (1)
    Seong-Soo Hong (1)

    1. Department of Chemical Engineering, Pukyong National University, 365 Shinsun-ro, Nam-ku, Busan, 608-739, Korea
  • 刊物类别:Chemistry and Materials Science
  • 刊物主题:Chemistry
    Catalysis
    Physical Chemistry
    Inorganic Chemistry
  • 出版者:Springer Netherlands
  • ISSN:1568-5675
文摘
Lead molybdate (PbMoO4) and chromium-substituted lead molybdate (PbCr1−x Mo x O4) were successfully synthesized using a microwave-assisted method and characterized by XRD, Raman spectroscopy, SEM, PL, and DRS. We also investigated the photocatalytic activity of these materials for the decomposition of rhodamine B under UV and visible light irradiation. The XRD and Raman results revealed the successful synthesis of 51–59 nm, well-crystallized PbMoO4 crystals with the microwave-assisted hydrothermal method. The DRS spectra of PbMo1−x Cr x O4 catalysts showed new intensive absorption bands in the visible light region. The PbMoO4 catalysts showed the lowest photocatalytic activity and the activity was increased with an increase of chromium substitution content under visible light irradiation. The PL peaks appeared at about 540–580 nm for all catalysts and the excitonic PL signal was proportional to the photocatalytic activity for the decomposition of rhodamine B. Keywords Chromium-substituted lead molybdate (PbCr1−x Mo x O4) Microwave-assisted hydrothermal process Photocatalytic decomposition of rhodamine B

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