| 空心玻璃微球附载TiO2清除水面漂浮的油层 |
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| 引用本文： | 陈士夫,程雪丽. 空心玻璃微球附载TiO2清除水面漂浮的油层[J]. 中国环境科学, 1999, 19(1) |
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| 作者姓名： | 陈士夫 程雪丽 |
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| 作者单位： | 淮北煤炭师范学院化学系,安徽,淮北,235000 |
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| 摘 要： | 以空心玻璃微球为载体，采用浸涂法制备出ＴｉＯ２／ｂｅａｄｓ光催化剂．研究了利用ＴｉＯ２／ｂｅａｄｓ光催化剂降解水面漂浮的正十二烷及甲苯的可行性．结果表明，３７５Ｗ中压汞灯照射１２０ｍｉｎ，正十二烷的光催化去除率达９３．５％，光照８０ｍｉｎ时甲苯被完全光催化去除；通入空气有利于正二十烷及甲苯的光催化去除，外加微量的Ｈ２Ｏ２（５．０ｍｍｏｌ／Ｌ）可大大提高光催化去除率，向反应液中加入少量Ｎａ＋对正十二烷及甲苯的光催化去除率无明显的影响．
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| 关 键 词： | 光催化降解；油层；二氧化钛；空心玻璃微球 |
Photocatalytic degradation of oil films floating on water by TiO2 supported hollow glass microbeads |
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| CHEN Shi-fu,CHENG Xue-li. Photocatalytic degradation of oil films floating on water by TiO2 supported hollow glass microbeads[J]. China Environmental Science, 1999, 19(1) |
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| Authors: | CHEN Shi-fu CHENG Xue-li |
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| Abstract: | The TiO 2/beads photocatalyst was prepared by dip coating technique using the hollow glass microbeads as a supporter .The feasibility of photocatalytic degradation of dodecane and toluene floating on water using TiO 2/beads was studied .The results showed that 100% of toluene was photocatalytically degraded after 80min illumination and 93.5% of dodecane degraded after 120min illumination with a 375W medium pressure mercury lamp.Bubbling air was favourable for the photocatalytic removal of dodecane and toluene.The photocatalytic removal efficiency was increased rapidly by adding a trace amount of H 2O 2(5.0mmol/L).Adding a small amount of Na ,no obviously effect for the photocatalytic removal of dodecane and toluene was observed. |
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| Keywords: | photocatalytic degradation oil films titanium dioxide hollow glass microbeads |
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