| Bi_(12)TiO_(20)粉体的制备及性能研究 |
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| 引用本文： | 杨鑫,柳清菊,张瑾,朱忠其,刘强.Bi_(12)TiO_(20)粉体的制备及性能研究[J].功能材料,2008,39(12). |
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| 作者姓名： | 杨鑫 柳清菊 张瑾 朱忠其 刘强 |
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| 作者单位： | 云南大学云南省高校纳米材料与技术重点实验室; |
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| 基金项目： | 国家自然科学基金
，
教育部跨世纪优秀人才培养计划
，
云南省自然科学基金
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| 摘 要： | 采用化学溶液分解法制备了Bi12TiO20粉体.通过XRD及光催化降解甲基橙的分析,研究了制备条件对光催化活性的影响.结果表明,在可见光下,前驱体溶液浓度为0.25mol/L,加热温度为70℃,加热时间为3h,煅烧温度为500℃,煅烧时间为2h时,所制备粉体的光催化活性最好,其光催化降解甲基橙的降解率除个别样品外均大于德国Degussa P25.制备出的Bi12TiO20材料的带隙能约为2.28eV.
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| 关 键 词： | Bi12TiO20粉体 化学溶液分解法 光催化 |
Study on preparation and properties of Bi_(12)TiO_(20) powders |
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| YANG Xin,LIU Qing-ju,ZHANG Jin,ZHU Zhong-qi,LIU Qiang.Study on preparation and properties of Bi_(12)TiO_(20) powders[J].Journal of Functional Materials,2008,39(12). |
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| Authors: | YANG Xin LIU Qing-ju ZHANG Jin ZHU Zhong-qi LIU Qiang |
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| Affiliation: | YANG Xin,LIU Qing-ju,ZHANG Jin,ZHU Zhong-qi,LIU Qiang(Yunnan Key Laboratory of Nanomaterials & Technology,Yunnan University,Kunming 650091,China) |
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| Abstract: | Bi12TiO20crystals with sillenite structures were prepared by a chemical solution decomposition(CSD) method.The samples were characterized by XRD and UV-vis spectroscopy.The influence of preparation conditions on the photocatalyic activity of the material was measured by degradation of methyl orange.The results indicate: through optimization of the preparation conditions,the powder show high photocatalystic activities to photodegrade methyl orange solution in 4h under visible light.The degration ration of th... |
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| Keywords: | Bi12TiO20powder chemical solution decomposition method photocatalytic activity |
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