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| Study on the Synthesis of La（3）-doped Nano-TiO_2 and Photocatalytic Degradation of Methyl Orange | |
| 引用本文： | 胡红民,俞建长. Study on the Synthesis of La（3）-doped Nano-TiO_2 and Photocatalytic Degradation of Methyl Orange[J]. 结构化学, 2010, 29(3): 407-413 |
| 作者姓名： | 胡红民 俞建长 |
| 作者单位： | College;Materials;Science;Engineering;Fuzhou;University; |
| 基金项目： | Supported by Fujian High-tech Project Foundation (No 2004H008) |
| 摘 要： | In this paper,La(3)-doped Nano-TiO2(La(3)-TiO2) was synthesized via hydrothermal process.Structure and optical properties of the synthesized samples were characterized via XRD,FT-IR,DRS,etc.The results showed that the phase transformation of TiO2 from anatase to rutile was effectively prevented by La(3)-doping,which improved the thermal stability of anatase,and also suppressed particle aggregation and grain growth of TiO2.The formation of Ti-O-La bond promoted UV absorption intensity of TiO2,and provoked red shift of absorbed light.And the spectra response range of TiO2 was extended significantly to visible light by La(3)-doping,then photocatalytic performance was improved effectively.Compared with pure nano-TiO2,the performance of La(3)-TiO2 which photocatalyticly degraded methyl orange was increased significantly. |
| 关 键 词： | 光催化降解 甲基橙 纳米二氧化钛 金红石TiO2 镧 光学性能 合成样品 X射线衍射 |
Study on the Synthesis of La(3)-doped Nano-TiO_2 and Photocatalytic Degradation of Methyl Orange |
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| HU Hong-Min,YU Jian-Chang. Study on the Synthesis of La(3)-doped Nano-TiO_2 and Photocatalytic Degradation of Methyl Orange[J]. Chinese Journal of Structural Chemistry, 2010, 29(3): 407-413 | |
| Authors: | HU Hong-Min YU Jian-Chang |
| Affiliation: | College of Materials Science and Engineering,Fuzhou University,Fuzhou 350108,China |
| Abstract: | In this paper,La(3)-doped Nano-TiO2(La(3)-TiO2) was synthesized via hydrothermal process.Structure and optical properties of the synthesized samples were characterized via XRD,FT-IR,DRS,etc.The results showed that the phase transformation of TiO2 from anatase to rutile was effectively prevented by La(3)-doping,which improved the thermal stability of anatase,and also suppressed particle aggregation and grain growth of TiO2.The formation of Ti-O-La bond promoted UV absorption intensity of TiO2,and provoked re... |
| Keywords: | nano-TiO2 La(3)-doping photocatalytic degradation |
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