| 纳米TiO2光催化材料分散性及其降解效率研究 |
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| 引用本文： | 白海莹,王荣国,刘文博,朱迅,朱振强.纳米TiO2光催化材料分散性及其降解效率研究[J].材料科学与工艺,2005,13(5):499-502. |
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| 作者姓名： | 白海莹 王荣国 刘文博 朱迅 朱振强 |
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| 作者单位： | 东北林业大学,交通运输工程学院,黑龙江,哈尔滨,1500080;哈尔滨工业大学,复合材料研究所,黑龙江,哈尔滨,150001;哈尔滨工业大学,材料科学与工程学院,黑龙江,哈尔滨,150001 |
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| 基金项目： | 黑龙江省交通厅科技攻关项目 |
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| 摘 要： | 采用苯丙乳液、锐钛型纳米级二氧化钛和表面活性剂,制得应用于道路交通设施中的光催化净化大气环保材料,在日光照射下降解汽车尾气中的有害气体.研究了分散方法、分散剂的种类、分散剂的浓度及分散时间对纳米TiO2分散性的影响,利用透射电镜对其分散情况进行观察,并对其分散机理进行探讨与研究.结果表明,采用合理的分散方法和适量的表面活性剂能有效改善纳米TiO2在水中的分散度,提高颗粒的稳定性,增强了光催化材料的光降解能力,有效提高了对汽车尾气中有害气体的降解能力.
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| 关 键 词： | 光催化涂料 纳米级二氧化钛 分散性 表面活性剂 |
| 文章编号： | 1005-0299(2005)05-0499-04 |
| 收稿时间： | 2005-05-10 |
| 修稿时间： | 2005年5月10日 |
Study on nano titanium dioxide photocatalysis materials' dispersion and ability of degradation |
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| BAI Hai-ying,WANG Rong-guo,LIU Wen-bo,ZHU Xun,ZHU Zhen-qiang.Study on nano titanium dioxide photocatalysis materials' dispersion and ability of degradation[J].Materials Science and Technology,2005,13(5):499-502. |
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| Authors: | BAI Hai-ying WANG Rong-guo LIU Wen-bo ZHU Xun ZHU Zhen-qiang |
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| Affiliation: | 1. School of Traffic Engineering, Northeast Forest University, Harbin 150040 ,China ;2. Research Institute of Composite, Harbin Institute of Technology, Harbin 150001, China;3. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | Automobile end gas pollution attracts more and more attention. In this paper, a kind of photocatalysis material that made of styrene-acrylic latex, nano titanium dioxide and surfactant was used in means of transportation, by which the harmful automobile end gas can be degraded. The effects of method, kinds of dispersant, concentration of dispersant and time on dispersibility were studied. Nano TiO2 grains were observed by TEM and theory of dispersion was discussed. Results showed that reasonable way of dispersion and surfactant can improve the dispersibility of nano TiO2 and the stability of TiO2 grain, at the same time enhance the ability of photocatalysis on automobile end gas effectively. |
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| Keywords: | photocatalysis coating nano titanium dioxide dispersibility surfactant |
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