| 载银TiO2半导体催化剂降解染料水溶液的研究 |
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| 引用本文： | 蒋伟川,谭湘萍.载银TiO2半导体催化剂降解染料水溶液的研究[J].环境科学,1995,16(2):15-18. |
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| 作者姓名： | 蒋伟川 谭湘萍 |
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| 作者单位： | 浙江大学化学系，浙江省环境保护科学研究所 |
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| 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
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| 关 键 词： | 载银催化剂 染料 光催化 废水处理 降解 |
| 收稿时间： | 1994/5/15 0:00:00 |
Study on the photodegradation of Dyes in Aqueous Solution over a Ag-loaded TiO2 Catalyst |
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| Jiang Weichuan.Study on the photodegradation of Dyes in Aqueous Solution over a Ag-loaded TiO2 Catalyst[J].Chinese Journal of Environmental Science,1995,16(2):15-18. |
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| Authors: | Jiang Weichuan |
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| Institution: | Dept. of Chemistry, Zhejiang University, Hangzhou 310027 |
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| Abstract: | Photodegradation of dyes in aqueous solution wasinvestigated by irradiating with a 300 watts highpressure mercury lamp and using silver loaded titanium as a catalyst. The results show that theAg loaded TiO2 had a higher catalytic activitythan a pure TiO2. An aqueous solution containing50 mg/L of dye could be decoloured over a Agloaded TiO2 catalyst with a 40- 60 min irradiation, which was 15-40 min less than that in thecase of using a pure TiO2 as a catalyst. The effects of tempreture,pH, photo-intensity andquantity of catalyst agent were also investigated. |
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| Keywords: | ilver catalyst photodegradation dye |
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