| 摘要: |
| 以活性炭（AC）为载体，利用溶胶凝胶工艺制备氧化钛（TiO2）溶胶，通过浸渍法制备负载型TiO2/AC纳米光催化剂以及掺杂Fe3＋和Cu2＋的M-TiO2／AC纳米复合光催化剂。以紫外灯做光源，用制得的TiO2/AC纳米光催化剂对苯酚溶液进行光催化氧化降解试验，并研究了掺杂Fe3＋和Cu2＋的M-TiO2/AC纳米复合光催化剂对苯酚的催化活性；结果表明，在紫外光条件下,TiO2/AC纳米光催化剂对苯酚的降解率达99％，较目光条件下高；掺杂Fe3＋能提高M—TiO2/AC纳米复合光催化剂对笨酚的催化活性。 |
| 关键词: 纳米光催化剂 光催化氧化 苯酚 金属离子 |
| DOI： |
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| Photocatalytic oxidation of phenol in water by TiO2/AC nanocomposite |
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| Abstract: |
| Titanium dioxide/activated carbon prepared by the sol-gel method and a supported catalyst TiO2/AC prepared by impregnation method were used as a photocatalyst in the reaction of phenol decomposition in water under Uv-lamp radiation.The nano-photocatalysts TiO2/AC and nanocomposite Cu2＋ and Fe3＋-doped M-TiO2/AC were discussed.The results showed that the nano-photocatalysts TiO2/AC have high photocatalytic activity for phenol concentration;The total removal efficiency was 99% under Uv-light radiation;And the experiment of Fe3＋-doped nanocomposite photocatalysts M-TiO2/AC thin film showed the high activity compared with the un-doped one,while the Cu2＋-doped method is not available for TiO2/ AC. |
| Key words: nanocomposite TiO2 photocatalytic oxidation phenol mental iron |
