| 纳米TiO2对光催化降解SDBS的影响 |
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| 引用本文： | 冯良荣,谢卫国,吕绍结,邱发礼.纳米TiO2对光催化降解SDBS的影响[J].水处理技术,2002,28(3):149-151. |
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| 作者姓名： | 冯良荣 谢卫国 吕绍结 邱发礼 |
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| 作者单位： | 中科院成都有机化学研究所,四川,成都,610041 |
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| 摘 要： | 本文以沉淀法制备得到了纳米TiO2光催化剂，考察了原料、沉淀剂、沉淀pH值、催化剂焙烧温度和焙烧时间等对催化剂粒子尺寸、晶相含量和光催化活性的影响。优化工艺条件下制备得到的催化剂原级粒子尺寸为8．5nm。以该催化剂在500W紫外线高压汞灯照射下光催化氧化十二烷基苯磺酸钠（SDBS）5小时，化学需氧量（COD）去除率达到91％以上。
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| 关 键 词： | 纳米TiO2 降解 SDBS 二氧化钛 沉淀法 制备 光催化 催化剂 废水处理 十二烷基苯磺酸钠 |
| 文章编号： | 1000-3770(2002)03-0149-03 |
| 修稿时间： | 2000年11月28 |
PREPARATION OF NANOMETER TiO2 BY PRECIPITATION AND ITS PHOTOCATALYSTIC ACTIVATION |
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| FENG Liang-rong,XIE Wei-guo,LU Shao-jie,QIU Fali.PREPARATION OF NANOMETER TiO2 BY PRECIPITATION AND ITS PHOTOCATALYSTIC ACTIVATION[J].Technology of Water Treatment,2002,28(3):149-151. |
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| Authors: | FENG Liang-rong XIE Wei-guo LU Shao-jie QIU Fali |
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| Abstract: | In this paper, nanometer TiO 2 photocatalysts were prepared by method of precipitation. The effects of different materials, precipitator, pH value of the precipitate, and temperature and time in calcinatin process on the catalytic activation were studied. The preliminary grain size of the catalyst prepared under optimized conditions is 8.5nm. Under radration 500W high-pressure mercury lamp ray and catalysing by this TiO 2 sample for 5 hours, more than 91% of the chemical oxygen demand of sodium dodecyl benzene sulfonate was cut down. |
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| Keywords: | nanometer TiO 2 precipitation preparation photocatalyst |
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