Rapid synthesis of LDHs using dolomite as a magnesium source and application to borate removal

Xinhong Qiu, Mari Yoshida, Tsuyoshi Hirajima, Keiko Sasaki

研究成果: ジャーナルへの寄稿記事

4 引用 (Scopus)

抄録

A rapid and efficient method based on microwave-assisted treatment has been developed for preparing layered double hydroxides (LDHs) using natural dolomite as a magnesium source. The aging temperature was 120°C and the total synthetic time was only within 6 h. The product was fully characterized by elemental composition, powdery X-ray diffraction, and scanning electron microscopy, to be highly pure hydrotalcite with a flaky shape. The synthesized adsorbent exhibited the sorption capacity of 1.34 mmol/kg which is comparable to boron-specific resin. Based on 11B MAS NMR and XRD results, the principal mechanism for borate immobilization on the LDHs is ion-exchange followed by transformation of polyborate into monoborate in a process of drying.

元の言語英語
ページ(範囲)224-228
ページ数5
ジャーナルMaterials Transactions
56
発行部数2
DOI
出版物ステータス出版済み - 1 1 2015

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Hydroxides
Borates
hydrotalcite
borates
Adsorbents
Magnesium
hydroxides
Boron
Sorption
magnesium
Ion exchange
Drying
Resins
Aging of materials
Microwaves
Nuclear magnetic resonance
X ray diffraction
Scanning electron microscopy
synthesis
adsorbents

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

これを引用

Rapid synthesis of LDHs using dolomite as a magnesium source and application to borate removal. / Qiu, Xinhong; Yoshida, Mari; Hirajima, Tsuyoshi; Sasaki, Keiko.

:: Materials Transactions, 巻 56, 番号 2, 01.01.2015, p. 224-228.

研究成果: ジャーナルへの寄稿記事

Qiu, Xinhong ; Yoshida, Mari ; Hirajima, Tsuyoshi ; Sasaki, Keiko. / Rapid synthesis of LDHs using dolomite as a magnesium source and application to borate removal. :: Materials Transactions. 2015 ; 巻 56, 番号 2. pp. 224-228.
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