| 浸渍法制备SO42-/TiO2-La2O3及其光催化氧化性能 |
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| 引用本文： | 张继昌,贾太轩,石蔚云,宋海香,刘自力.浸渍法制备SO42-/TiO2-La2O3及其光催化氧化性能[J].工业催化,2011,19(6):22-26. |
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| 作者姓名： | 张继昌 贾太轩 石蔚云 宋海香 刘自力 |
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| 作者单位： | 1.安阳工学院化学与环境工程学院，河南 安阳 455000； 2.广州大学化学化工学院，广东 广州 510006 |
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| 基金项目： | 国家自然科学基金（21076047） |
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| 摘 要： | 不同硫酸浓度条件下，利用浸渍法处理TiO2-La2O3，制得系列固体超强酸SO42-/TiO2-La2O3。通过XRD、FT-IR、TG-DTA和UV-Vis表征，揭示SO42-/TiO2-La2O3的微观结构和内在规律性。以邻硝基苯酚为探针反应，考察SO42-/TiO2-La2O3光催化性能。结果表明，SO42-/TiO2-La2O3的光催化活性明显高于TiO2-La2O3，SO42-/TiO2-La2O3的催化活性取决于H2SO4浓度，浸渍液中H2SO4的合适浓度为0.5 mol·L-1，掺杂La2O3适宜的物质的量分数为0.5%，最佳焙烧温度为500 ℃。
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| 关 键 词： | 催化化学 SO42-/TiO2-La2O3 固体超强酸 光催化氧化 邻硝基苯酚 |
Preparation of SO42-/TiO2-La2O3 by impregnation method and its photocatalytic oxidation performance |
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| ZHANG Jichang,JIA Taixuan,SHI Weiyun,SONG Haixiang,LIU Zili.Preparation of SO42-/TiO2-La2O3 by impregnation method and its photocatalytic oxidation performance[J].Industrial Catalysis,2011,19(6):22-26. |
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| Authors: | ZHANG Jichang JIA Taixuan SHI Weiyun SONG Haixiang LIU Zili |
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| Affiliation: | 1.School of Chemistry & Environmental Engineering,Anyang Institute of Technology,Anyang 455000,Henan,China;2.School of Chemistry & Chemical Engineering,Guangzhou University,Guangzhou 510006,Guangdong,Chin |
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| Abstract: | The photocatalysts SO42-/TiO2-La2O3 loaded with SO42- anion in H2SO4 solution of different concentration were prepared by impregnation method and characterized by XRD,FT-IR,TG-DTA and UV-Vis in order to reveal the microstructure and inherent regularity of SO42-/TiO2-La2O3. The photocatalytie properties of the catalysts was investigated using o-nitrophenol degradation as the probe reaction. The results showed that the photoeatalytic activity of SO42-/TiO2-La2O3 was higher than that of TiO2-La2O3 and depended on the sulfuric acid concentration. The optimum preparation condition of the catalyst was as follows ： sulfuric acid concentration 0.5 mol · L^-1 ,La2O3 doping amount 0.5% （molar ratio） and calcination temperature 500 ℃. |
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| Keywords: | catalytic chemistry SO42-／TiO2-La2O3 solid superacid photocatalysis oxidation o-nitrophenol |
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