| Fe_2O_3-TiO_2光催化降解水中酸性橙Ⅱ研究 |
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| 引用本文： | 付川,祁俊生,潘杰,王翔.Fe_2O_3-TiO_2光催化降解水中酸性橙Ⅱ研究[J].环境科学与技术,2009,32(9). |
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| 作者姓名： | 付川 祁俊生 潘杰 王翔 |
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| 作者单位： | 1. 重庆三峡学院化学与环境工程学院,重庆,404000;Department of Civil Engineering,Florida State University,USA Florida 32310
2. 重庆三峡学院化学与环境工程学院,重庆,404000 |
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| 摘 要： | 通过溶胶-凝胶法制备TiO2/Fe2O3复合半导体催化剂,用SEM、X-ray衍射仪对催化剂进行表征,设计了光催化降解反应装置以研究光催化降解水中酸性橙。探讨了Fe2O3-TiO2催化剂对可见光吸收性能,以及降解水中酸性橙Ⅱ的催化性能影响。实验结果表明:Fe2O3修饰的TiO2出现明显的红移,20%wFe2O3修饰的TiO2催化剂催化效率较高;TOC结果表明,低pH值条件有利于酸性橙Ⅱ的矿化。
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| 关 键 词： | 三氧化二铁 光催化 二氧化钛 |
Photoelectrocatalytic Degradation of Acid Orange II by Fe_2O_3 Modified TiO_2 Catalyst |
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| FU Chuan,QI Jun-sheng,PAN Jie,WANG Xiang.Photoelectrocatalytic Degradation of Acid Orange II by Fe_2O_3 Modified TiO_2 Catalyst[J].Environmental Science and Technology,2009,32(9). |
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| Authors: | FU Chuan QI Jun-sheng PAN Jie WANG Xiang |
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| Institution: | 1.College of Chemical and Environmental Engineering;Chongqing Three Gorges University;Chongqing 404000;China;2.Department of Civil Engineering;Florida State University;Florida 32310;USA |
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| Abstract: | Fe2O3-TiO2 coatings were successfully prepared on glass slide substrates using sol-gel method for photocatalytic applications.The phase structure,thermal microstructure and surface properties of coatings were respectively characterized by using X-ray diffractometry(XRD),scanning electron microscopy(SEM)and UV-Vis diffuse reflectance spectroscopy.Fe2O3TiO2 photocatalyst showed obvious red-shift compared with pure TiO2 by DRS,and absorbance in the visible range of Fe2O3 samples increase with the increase of a... |
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| Keywords: | ferric oxide photodegradation titanium dioxide |
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