首页|Reaction Morphology Depending on the Amounts of HC1 and NH4OH and Effect of pH on the Preparation of TiO2 Nanopowder
Reaction Morphology Depending on the Amounts of HC1 and NH4OH and Effect of pH on the Preparation of TiO2 Nanopowder
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The reaction morphology was investigated depending on the amounts of HC1 and NH4OH， and the effect of pH was studied on the preparation of TiO2 nanopowders。 TiO2 nanopowder was prepared using a titanium tetraisopropoxide。 Subsequently， the effect of pH on the characteristics of the prepared TiO2 nanopowder was evaluated depending on the amounts of the catalysts such as HC1 and NH4OH。 The morphology and phase transformation of TiO2 powder prepared by hydrolysis of titanium tetra-isopropoxide were strongly influenced by the presence of the catalysts。 In the case of using NH4OH， the morphology of the TiO2 powder exhibited powder form。 For the HC1 catalyst， it showed bulk or granule form。 The phase transformations of amorphous Ti(OH)4 to anatase TiO2 and the anatase to rutile was significantly influenced by the kind and amount of the catalysts。
TiO2 nanopowderpreparation
LIM Changsung
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Department of Advanced Materials Science & Engineering, Hanseo University, Seosan 356-706, Korea
International conference on environmental technology and knowledge transfer;ICET 2010
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