| 高光催化活性锐钛矿型纳米TiO2溶胶的低温制备 |
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| 引用本文： | 彭人勇,吕新莲. 高光催化活性锐钛矿型纳米TiO2溶胶的低温制备[J]. 青岛科技大学学报(自然科学版), 2005, 26(6): 500-503 |
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| 作者姓名： | 彭人勇 吕新莲 |
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| 作者单位： | 青岛科技大学,材料与环境科学学院,山东,青岛,266042;青岛科技大学,材料与环境科学学院,山东,青岛,266042 |
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| 摘 要： | 以四氯化钛和氨水为原料,在常温条件下通过两步法制备出TiO2溶胶。通过TEM和XRD分析测试表明,TiO2溶胶粒度小于10 nm,并存在一定数量的锐钛矿型晶相结构。在充足太阳光照8 h后,用质量分数0.2%的甲基橙溶液和0.2%的亚甲基兰溶液的降解试验测试其光催化性能。结果显示,温度为80℃时制得的TiO2溶胶对甲基橙和亚甲基兰的降解率就已超过90%,催化效果明显。
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| 关 键 词： | 低温制备 二氧化钛溶胶 锐钛矿型 高光催化活性 |
| 文章编号： | 1672-6987(2005)06-0500-04 |
| 修稿时间： | 2005-01-21 |
Preparation of Nanosized Anatase TiO2 Sol with High Photocatalytic Activity at Low Temperature |
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| PENG Ren-yong,LV Xin-lian. Preparation of Nanosized Anatase TiO2 Sol with High Photocatalytic Activity at Low Temperature[J]. Journal of Qingdao University of Science and Technology:Natutral Science Edition, 2005, 26(6): 500-503 |
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| Authors: | PENG Ren-yong LV Xin-lian |
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| Abstract: | Nanocrystalline photocatalytic active titanium dioxide(TiO_(2)) sol was prepared by two steps with precursor titanium tetrachloride at low temperature.The samples were characterized by TEM and XRD.The results indicated that TiO_(2)sol prepared by this way was of particle diameter of less than 10 nanometers and anatase phase.Under plenteous sunshine for 8 h,the photocatalytic activity of TiO_(2) sol was tested by the degradation rate of the color of 0.2wt% methyl orange solution and 0.2wt% methylene blue solution.The results showed that the degradation rate of methylene blue and methyl orange reached 94.6% and 93.2% respectively. |
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| Keywords: | preparation at low temperature titanium dioxide sol anatase phase high photocatalytic activity |
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