| TiO_2/beads as a photocatalyst for the degradation of X_(3B) azo dye |
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| 作者姓名： | CHEN Shi fu * CAO Geng yu |
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| 作者单位： | 1 Department of Chemical Physics，University of Science and Technology of China，Hefei 230026，China; 2 Department of Chemistry，Huaibei Coal Teachers College，Huaibei 235000，China. |
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| 基金项目： | TheNaturalScienceFoundationofAnhuiProvince (No.0 10 4 5 30 4 )andtheNaturalScienceFoundationofEducationCommitteeofAnhuiProvince (No.2 0 0 2kj2 4 7) |
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| 摘 要： | ＩｎｔｒｏｄｕｃｔｉｏｎＥｎｖｉｒｏｎｍｅｎｔａｌｐｒｏｔｅｃｔｉｏｎｅｘｐｅｒｔｓｉｎｍａｎｙｃｏｕｎｔｒｉｅｓｐａｙｈｉｇｈａｔｔｅｎｔｉｏｎｔｏｔｈｅｄｉｓｐｏｓａｌｏｆｔｈｅｗａｓｔｅｗａｔｅｒｗｉｔｈｄｙｅｏｒｗｉｔｈｄｅｅｐｃｈｒｏｍａ.Ｔｈｏｕｇｈａｔｐｒｅｓｅｎｔｂｉｏｄｅｇｒａｄａｔｉｏｎｉｓｕｓｅｄｉｎｔｈｅｄｉｓｐｏｓａｌｏｆｔｈｅｗａｓｔｅｗａｔｅｒ,ｔｈｅｃｏｎｃｅｎｔｒａｔｉｏｎａｎｄｃｈｒｏｍａｉｎｔｈｅｄｉｓｐｏｓｅｄｗａｔｅｒａｒｅｓｔｉｌｌｖｅｒｙｈｉｇｈａｎｄ…
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TiO_2/beads as a photocatalyst for the degradation of X_(3B) azo dye |
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| CHEN Shi fu ,*,CAO Geng yu .TiO_2/beads as a photocatalyst for the degradation of X_(3B) azo dye[J].Journal of Environmental Sciences,2003(1). |
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| Authors: | CHEN Shi fu CAO Geng yu |
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| Institution: | CHEN Shi fu 1,2*,CAO Geng yu 1 |
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| Abstract: | The feasibility of photocatalytic degradation of X 3B azo dye by TiO 2/beads photocatalyst was studied. The effects of parameters such as the amount of TiO 2/beads, airflow, as well as the concentrations of H 2O 2, Fe 3+ , Mg 2+ and Na + on the photocatalytic degradation of X 3B azo dye were also studied. The results showed that 25 mg/dm 3 X 3B azo dye can be photocatalytically degraded completely by 30 min illumination with a 375W medium pressure mercury lamp. Adding a small amount of H 2O 2 or Fe 3+ , the efficiencies of photocatalytic degradation of X 3B azo dye were increased rapidly. The mechanisms of the reaction and the role of the additives were also investigated. After 120 hours TiO 2/beads showed no significant loss of the photocatalytic activity. |
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| Keywords: | X 3B azo dye photocatalytic degradation titanium dioxide hollow glass microbeads |
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