Adsorption of Bromic Acid Ion in Water by the Reduced Titanium Oxide

Abstract:

Because bromic acid ion generated by the ozone processing of drinking water for sterilization is strong carcinogenic, there is a high possibility in persons health hazard. The titanium dioxide was reduced at 900-degree Centigrade by the gas atmosphere (CO or H₂). It was found that the concentration of the bromic acid ion in water was decreased at time when the reduced titanium oxide was added to water including the bromic acid ion. The bromic acid ion in water could be adsorbed by the titanium oxide reduced. In addition, it was suggested that the bromic acid ion could be decomposed into the bromide ion with low carcinogenic by using the photocatalitic function of titanium oxide under UV irradiation.

• Periodical: Materials Science Forum (Volume 724)
• Pages: 97-100
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.724.97
• Online since: June 2012
• Authors: Eiji Watanabe, Kaori Nishizawa, Masato Tazawa
• Keywords: Adsorption, Bromic Acid Ion, Photocatalyst, Reduction, Titanium Oxide, Water

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