As(iii) removal through catalytic oxidation and Fe(iii) precipitation

Kazumasa Oshima; Hiromichi Kondo; Eriko Konishi; Tsuyoshi Yamamoto; Yoshifumi Tsuge; Takayuki Watanabe; Masahiro Kishida

doi:10.1039/d2ra02537j

As(iii) removal through catalytic oxidation and Fe(iii) precipitation

Kazumasa Oshima, Hiromichi Kondo, Eriko Konishi, Tsuyoshi Yamamoto, Yoshifumi Tsuge, Takayuki Watanabe, Masahiro Kishida

Research output: Contribution to journal › Article › peer-review

Abstract

To remove arsenite (As(iii)) from wastewater effectively, the catalytic oxidation of As(iii) to arsenate (As(v)) and As(v) precipitation with iron ions (Fe(iii)) was investigated. The Pt/SiO₂ catalyst functioned as a reaction site for As(iii) with oxygen in the atmosphere. The combination of the Pt/SiO₂ catalyst and Fe(iii) precipitant improved the removal of As(iii) in the precipitate; Pt/SiO₂ worked as both an As(iii) oxidation site and precipitation site with Fe(iii) precipitant.

Original language	English
Pages (from-to)	16843-16846
Number of pages	4
Journal	RSC Advances
Volume	12
Issue number	26
DOIs	https://doi.org/10.1039/d2ra02537j
Publication status	Published - Jun 7 2022

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)

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10.1039/d2ra02537j

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title = "As(iii) removal through catalytic oxidation and Fe(iii) precipitation",

abstract = "To remove arsenite (As(iii)) from wastewater effectively, the catalytic oxidation of As(iii) to arsenate (As(v)) and As(v) precipitation with iron ions (Fe(iii)) was investigated. The Pt/SiO2 catalyst functioned as a reaction site for As(iii) with oxygen in the atmosphere. The combination of the Pt/SiO2 catalyst and Fe(iii) precipitant improved the removal of As(iii) in the precipitate; Pt/SiO2 worked as both an As(iii) oxidation site and precipitation site with Fe(iii) precipitant.",

author = "Kazumasa Oshima and Hiromichi Kondo and Eriko Konishi and Tsuyoshi Yamamoto and Yoshifumi Tsuge and Takayuki Watanabe and Masahiro Kishida",

note = "Funding Information: This work was supported by the Japan Society for the Promotion of Science (grant number 18H03856). Publisher Copyright: {\textcopyright} 2022 The Royal Society of Chemistry.",

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doi = "10.1039/d2ra02537j",

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T1 - As(iii) removal through catalytic oxidation and Fe(iii) precipitation

AU - Oshima, Kazumasa

AU - Kondo, Hiromichi

AU - Konishi, Eriko

AU - Yamamoto, Tsuyoshi

AU - Tsuge, Yoshifumi

AU - Watanabe, Takayuki

AU - Kishida, Masahiro

PY - 2022/6/7

Y1 - 2022/6/7

N2 - To remove arsenite (As(iii)) from wastewater effectively, the catalytic oxidation of As(iii) to arsenate (As(v)) and As(v) precipitation with iron ions (Fe(iii)) was investigated. The Pt/SiO2 catalyst functioned as a reaction site for As(iii) with oxygen in the atmosphere. The combination of the Pt/SiO2 catalyst and Fe(iii) precipitant improved the removal of As(iii) in the precipitate; Pt/SiO2 worked as both an As(iii) oxidation site and precipitation site with Fe(iii) precipitant.

AB - To remove arsenite (As(iii)) from wastewater effectively, the catalytic oxidation of As(iii) to arsenate (As(v)) and As(v) precipitation with iron ions (Fe(iii)) was investigated. The Pt/SiO2 catalyst functioned as a reaction site for As(iii) with oxygen in the atmosphere. The combination of the Pt/SiO2 catalyst and Fe(iii) precipitant improved the removal of As(iii) in the precipitate; Pt/SiO2 worked as both an As(iii) oxidation site and precipitation site with Fe(iii) precipitant.

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JO - RSC Advances

JF - RSC Advances

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ER -

As(iii) removal through catalytic oxidation and Fe(iii) precipitation

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