Characterization of large scorodite particles synthesized from Fe(II) and As(V) solution

S. Suzuki, S. Fujieda, K. Shinoda, E. Shibata, Takashi Nakamura, T. Inanaga, M. Abumiya

研究成果: Conference contribution

抄録

In order to immobilize arsenic by-products produced in the processing of nonferrous metals, large scorodite particles with nearly 20 μm diameter were synthesized from Fe(II) and As(V) aqueous solutions, with and without copper, and their morphologies and structures were analyzed using transmission electron microscopy (TEM). The results showed that scorodite particles with copper have round polyhedral shape, whereas scorodite particles without copper have octahedral shape. The compositional profile of the scorodite particles with copper analyzed using an energy-dispersive X-ray spectrometer attached to TEM showed that the elements are almost homogeneously distributed in the particles, although the particle surfaces have slightly higher concentration of iron. The dissolution characteristics of the scorodite particles prepared from the Fe(II) and As(V) aqueous solutions were investigated. It was shown that the concentration of arsenic dissolved from the particles is low regardless of copper, although it depends on the temperature and pH of the solution.

本文言語English
ホスト出版物のタイトルAdvances in Materials Science for Environmental and Energy Technologies III
編集者Navin Jose Manjooran, Josef Matyas, Tatsuki Ohji, Gary Pickrell, Andrei Jitianu
出版社American Ceramic Society
ページ99-107
ページ数9
ISBN(電子版)9781118996683
出版ステータスPublished - 2014 1 1
イベントAdvances in Materials Science for Environmental and Energy Technologies III - Materials Science and Technology 2013 Conference and Exhibition, MS and T 2013 - Montreal, Canada
継続期間: 2013 10 272013 10 31

出版物シリーズ

名前Ceramic Transactions
250
ISSN(印刷版)1042-1122

Other

OtherAdvances in Materials Science for Environmental and Energy Technologies III - Materials Science and Technology 2013 Conference and Exhibition, MS and T 2013
国/地域Canada
CityMontreal
Period13/10/2713/10/31

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 材料化学

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