| 水溶液中十二烷基苯磺酸钠的半导体光催化降解的研究 |
| 摘要点击 2928 全文点击 2028 投稿时间：1994-02-27 |
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| 中文关键词 半导体 光催化 十二烷基苯磺酸钠 |
| 英文关键词 semiconductor photocatalysis sodium dodecylbenzenesulphonate |
| DOI 10.13227/j.hjkx.19940601 |
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| 中文摘要 |
| 以TiO2为催化剂,以300W高压汞灯为光源,对水溶液中的十二烷基苯磺酸钠(DBS)进行了半导体光催化降解,研究了不同pH条件下金红石型和锐钛型TiO2的光催化活性及H2O2、Cu2+的加入对降解的影响。结果表明,锐钛型TiO2具有较高的催化活性;H2O2在碱性条件下能抑制DBS的光催化降解,在无TiO2时,H2O2.对DBS有光催化氧化作用;在酸性条件下,Cu2+对DBS的TiO2光催化降解有较强的助催化作用。 |
| 英文摘要 |
| Anionic sodium dodecylbenienesulphonate (DBS) can be photodegradated in aqueous suspension of TiO2 powder by irradiation with a 300W high pressure mercury lamp. The photocatalytic ability of anatuse and rutile TiO2 in the solutions at different PH values has been studied. The effects of adding H2O2 and Cu2+ on the photodegradation have also been discussed. The results show that anatase TiO2 has a more efficiently catalytic ability than rutile TiO2. H2O2 can reduce the rate of degradation in a basic solution. Cu2+ can increase the rate of degradation in an acidic solution. |
