Hydrothermal Conversion of Layered Niobate K<sub>4</sub>Nb<sub>6</sub>O<sub>17</sub>·3H<sub>2</sub>O to Rare Microporous Niobate K<sub>6</sub>Nb<sub>10.8</sub>O<sub>30</sub>
Yusuke Ide (1823164)Wataru Shirae (4400224)
Abstract
We report a new facile\nroute to synthesizing K<sub>6</sub>Nb<sub>10.8</sub>O<sub>30</sub>, a rare microporous niobate. When hydrothermally treated under alkali\nconditions, a layered niobate, K<sub>4</sub>Nb<sub>6</sub>O<sub>17</sub>·3H<sub>2</sub>O, was converted to K<sub>6</sub>Nb<sub>10.8</sub>O<sub>30</sub>. This product had a much smaller particle size than\nK<sub>6</sub>Nb<sub>10.8</sub>O<sub>30</sub>, prepared by a conventional\nsolid-state reaction, and showed enhanced adsorption properties.
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