Reductive removal of selenate (VI) in aqueous solution using rhodium metal particles supported on TiO_2

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説明

Selenium and its compounds in high concentration are toxic for humans, especially selenate (VI) is the most toxic due to its high solubility in water. To promote the reductive reaction of Se(VI) to Se(IV) or Se(0), which is relatively easy to remove in water, noble metal particles were added as reaction sites with a reductant. The highest removal performance of selenate in aqueous solution was achieved using rhodium particles supported on TiO_2 (Rh/TiO_2). Selenate was rapidly reduced with hydrazine on the metal particle, leading to a selenium deposition on the particle inhibiting the stable reductive reaction. On the other hand, when a weaker reductant such as formaldehyde was used for the selenate reduction, the selenium deposition was suppressed due to its low reactivity, resulting in a stable reductive reaction of selenate in water.

収録刊行物

  • RSC Advances

    RSC Advances 12 (28), 17655-17660, 2022-06-15

    Royal Society of Chemistry (RSC)

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詳細情報 詳細情報について

  • CRID
    1050299130033086080
  • ISSN
    20462069
  • HANDLE
    2324/7161322
  • 本文言語コード
    en
  • 資料種別
    journal article
  • データソース種別
    • IRDB

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