Hydrothermal synthesis of tobermorite doped with phosphorus species for removing heavy metal ions

H. Maeda, Y. Ogawa, Hideki Ishida, T. Kasuga

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

A new type of tobermorite for removing heavy metal ions in waste water was prepared by hydrothermal treatment of slurries containing quartz, calcium hydroxide and disodium hydrogen phosphate. X-ray diffraction and X-ray fluorescence analysis showed that tobermorite with a high Ca/Si molar ratio is formed and contains phosphate species after the treatment. The incorporation of phosphate species in tobermorite induced the increase in the amount of Ca 2+ ions. Tobermorite containing phosphate species showed a higher heavy metal ion adsorption capacity than tobermorite without phosphate.

Original languageEnglish
Pages (from-to)8-11
Number of pages4
JournalJournal of the Australian Ceramic Society
Volume48
Issue number1
Publication statusPublished - 2012 Jul 6

Keywords

  • Hydrothermal reaction
  • Phosphate species
  • Tobermorite

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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