| Na2Ti6O13纳米带的制备及其光降解活性艳橙染料废水的研究 |
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| 引用本文： | 刘杰,黄少斌,简子聪.Na2Ti6O13纳米带的制备及其光降解活性艳橙染料废水的研究[J].工业安全与环保,2012,38(7):8-11. |
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| 作者姓名： | 刘杰 黄少斌 简子聪 |
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| 作者单位： | 1. 华南理工大学环境科学与工程学院 广州510006
2. 华南理工大学环境科学与工程学院 广州510006;污染控制与生态修复广东省普通高等学校重点实验室 广州510006 |
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| 基金项目： | 广东省科技厅，广东省经济和信息化委员会，广州市番禺区科技和信息化局 |
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| 摘 要： | 用微乳法和熔盐法结合制备出了Na2Ti6O13纳米带,并用XRD,SEM对其进行表征;研究了Na2Ti6O13在紫外光下对偶氮染料活性艳橙(X-GN)的降解,并探讨了pH值、催化剂投加量和外加H2O2氧化剂对光催化效率的影响。实验表明,Na2Ti6O13具有很好的光催化性能,30W紫外灯下光催化60min对25mg/LX-GN的降解率最高可达94.1%;反应液pH值过高或过低会影响催化剂活性,最佳pH值为5.7;一定范围内,光催化效率随催化剂投加量的增加而提高,但投加量大于1.0 g/L时,催化效率反而下降;适当投加H2O2能显著提高降解效果。
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| 关 键 词： | Na2Ti6O13 纳米带 光降解 活性艳橙 |
Preparation of Na2Ti6O13 Nanobelts and Photocatalytic Degradation of Reactive Brilliant Orange |
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| LIU Jie
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HUANG Shaobin
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JIAN Zicong.Preparation of Na2Ti6O13 Nanobelts and Photocatalytic Degradation of Reactive Brilliant Orange[J].Industrial Safety and Dust Control,2012,38(7):8-11. |
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| Authors: | LIU Jie HUANG Shaobin JIAN Zicong |
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| Affiliation: | 1(1.College of Environmental Science and Engineering,South China University of Technology Guangzhou 510006) |
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| Abstract: | Na2Ti6O13 nanobelts are prepared and characterized by XRD and SEM.The photo-catalytic activity of Na2Ti6O13 is studied under UV-light by degradation of azo dye X-GN.The effects of pH value,photocatalyst dosage and addition of H2O2 are also investigated.The results show that Na2Ti6O13 has better photocatalytic property and the degradation rate of 25 mg/L X-GN can reach 94.1% in 60 min under 30 W of ultraviolet lamp;the optimal pH should be 5.7;within certain range,photocatalytic degradation rate increases with the increase of dosage of photocatalyst,but it turns to be decreased when the dosage is more than 1.0 g/L,and the addition of H2O2 can obviously improve the degradation efficiency. |
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| Keywords: | Na2Ti6O13 nanobelt photocatalytic degradation reactive brilliant orange |
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