| 强悬浮性纳米TiO2的制备、表征及光催化活性研究(Ⅰ)制备与表征 |
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| 引用本文： | 赵金伟,袁敏,刘孝恒,汪信.强悬浮性纳米TiO2的制备、表征及光催化活性研究(Ⅰ)制备与表征[J].光谱学与光谱分析,2003,23(5). |
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| 作者姓名： | 赵金伟 袁敏 刘孝恒 汪信 |
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| 作者单位： | 1. 南京理工大学化工学院,江苏,南京,210094;江苏出入境检验检疫局,江苏,南京,210001
2. 南京理工大学化工学院,江苏,南京,210094 |
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| 基金项目： | 国家博士后基金,南京理工大学博士后基金资助 |
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| 摘 要： | 以热分解方法制备纳米TiO2,后续处理采用甲基硅油淬火改性和自然冷却,对改性前后的产物进行了XRD,TEM,FTIR等表征。结果表明,两种后续处理方法对所制备的纳米TiO2的物相、晶粒度、结晶度影响不大;但经硅油改性后的纳米TiO2的团聚程度降低。进一步的研究表明,经硅油改性后的纳米TiO2可长期悬浮于水的表面及浅层,这可能有利于直接用阳光有效光催化降解污水和光催化剂的回收再利用。
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| 关 键 词： | 纳米TiO2 甲基硅油 淬火 改性 |
Study of Photocatalytic Activity, Characterization and Preparation of Supersuspended Nano-TiO2 (Ⅰ)Preparation and Characterization |
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| ZHAO Jin-wei,YUAN Min,LIU Xiao-heng,WANG Xin
.Technology and Science University of Nanjing Chemical School,Nanjing ,China
.Jiangsu Entry-Exit Inspection and Quarantine Bureau,Nanjing ,China.Study of Photocatalytic Activity, Characterization and Preparation of Supersuspended Nano-TiO2 (Ⅰ)Preparation and Characterization[J].Spectroscopy and Spectral Analysis,2003,23(5). |
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| Authors: | ZHAO Jin-wei YUAN Min LIU Xiao-heng WANG Xin
Technology and Science University of Nanjing Chemical School Nanjing China
Jiangsu Entry-Exit Inspection and Quarantine Bureau Nanjing China |
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| Institution: | ZHAO Jin-wei,YUAN Min,LIU Xiao-heng,WANG Xin
1.Technology and Science University of Nanjing Chemical School,Nanjing 210094,China
2.Jiangsu Entry-Exit Inspection and Quarantine Bureau,Nanjing 210001,China |
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| Abstract: | Nano-TiO2 samples were prepared by pyrolysis method, and the cooling process of the products was based on the treatment in silicone oil and in air respectively. The obtained ultrafine TiO2 samples were characterized by XRD, TEM and FTIR, which show that these two TiO2 samples have no obvious difference in phase, size and crystallization, but the modified product with silicon oil has greatly reduced agglomeration of particles. Another study shows that the modified particles can suspend on the surface or upside lay of water for a long time, which probably does good to waste water disposal directly using solar light and for recycle usage of photocatalyst in the future. |
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| Keywords: | Nano-TiO2 Silicone oil Quench Modification |
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