한국세라믹학회지 (Journal of the Korean Ceramic Society)
- 제37권4호
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- Pages.308-313
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- 2000
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- 1229-7801(pISSN)
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- 2234-0491(eISSN)
침전제 적하법을 이용한 $TiO_2$ 분말 제조 및 광촉매 특성
Synthesis of Hydrous $TiO_2$ Powder by Dropping Precipitant Method and Photocatalytic Properties
초록
Hydrous titanium oxide particles with anatase phase were prepared from 0.05 mol TiCl4 solution using NH4HCO3 as precipitant by the droopping precipitant method. The sequential change of pH is completed by a sudden and steep increase in a pH value of the range of 6~7 to which the concentration of adsorbed OH- and H+ ions on TiO2 surface is equal. Rutile phase started precipitating with anatase phase as an increase of reaction temperature above 6