2013 Fiscal Year Final Research Report
Development of a new treatment method of ammonia-containing wastewater with photocatalyst
| Project/Area Number |
24750149
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Environmental chemistry
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| Research Institution | Tokai University |
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Principal Investigator |
MIKAMI IKKO 東海大学, 理学部, 講師 (80433902)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 水処理 / 光触媒 / アンモニア |
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| Research Abstract |
The oxidation of aqueous ammonia over a metal-loaded TiO2 photocatalyst was investigated as a noble method for purification of ammonia-containing wastewater. It was found that the reaction proceeded with high decomposition rate at pH 10 under air flow. The use of a high initial concentration of ammonia and adjusting the pH to 10 with NaOH(aq) promote decomposition of ammonia with high selectivity for dinitrogen that is favorite product. The treatment of ammonia with higher decomposition rate and selectivity for dinitrogen was achieved when palladium was used as a co-catalyst on TiO2.
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