Mn-kaolinite synthesis under low-temperature hydrothermal conditions

Jyung Choi, Sridhar Komarneni, Man Park

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

Mn-kaolinite was hydrothermally synthesized, for the first time, using silicic acid, Mn-carbonate and aluminum nitrate mixed with aqueous solutions of KOH at 100-200 °C for 24-96 h. Without the addition of Mn-carbonate to silicic acid and aluminum nitrate mixture, no crystalline material could be synthesized by hydrothermal treatment up to 200 °C for 6 days. However, by the addition of Mn-carbonate to the above precursors, Mn-kaolinite was synthesized at both 100 and 200 °C for 1 or 2 days, indicating that Mn played an important role in the formation of kaolinite. At a reaction temperature of 100 °C, the Mn-kaolinite peaks became sharper with increasing reaction duration, as expected.

Original languageEnglish (US)
Pages (from-to)237-241
Number of pages5
JournalApplied Clay Science
Volume44
Issue number3-4
DOIs
StatePublished - May 1 2009

All Science Journal Classification (ASJC) codes

  • Geology
  • Geochemistry and Petrology

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