| 载银TiO2半导体催化剂降解染料水溶液的研究 |
| 摘要点击 806 全文点击 1005 投稿时间：1994-05-15 |
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| 中文关键词 载银催化剂 染料 光催化 |
| 英文关键词 silver catalyst photodegradation dye |
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| 中文摘要 |
| 以新型载银TiO2为催化剂,采用高压汞灯为光源对染料水溶液进行光催化降解、实验结果表明:采用TiO2催化剂使直接耐酸大红(35mg/L)。直接耐晒翠蓝(50mg/L)和直接黑(50mg/L)染料溶液脱至无色的时间分别为35min、60min及60min,而采用载银TiO2催化剂,上述染料溶液脱至无色的时间分别为20min、30min及20min。探讨了pH、光强、催化剂用量及灼烧温度等对催化降解的影响。 |
| 英文摘要 |
| Photodegradation of dyes in aqueous solution was investigated by irradiating with a 300 watts high pressure mercury lamp and using silver loaded titanium as a catalyst. The results show that the Ag loaded TiO2 had a higher catalytic activity than a pure TiO2. An aqueous solution containing 50mg/L of dye could be decoloured over a Ag loaded TiO2 catalyst with a 40—60 min irradiation, which was 15—40min less than that in the case of using a pure TiO2 as a catalyst.The effects of tempreture,pH,photo-intensity and quantity of catalyst agent were also investigated. |
