| Ti4+掺杂纳米CeO2的制备及其抗紫外性能 |
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| 引用本文： | 史艳丽,张金生,李丽华,李秀萍.Ti4+掺杂纳米CeO2的制备及其抗紫外性能[J].稀土,2012,33(3):60-63. |
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| 作者姓名： | 史艳丽 张金生 李丽华 李秀萍 |
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| 作者单位： | 1. 辽宁石油化工大学化学与材料科学学院,辽宁抚顺,113001
2. 辽宁石油化工大学石油化工学院,辽宁抚顺,113001 |
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| 摘 要： | 以Ce(SO4)2.4H2O为主要材料,采用超声-沉淀法制备了掺杂Ti4+的纳米CeO2,并研究了掺杂Ti4+离子对CeO2的晶型和抗紫外性能的影响。用X-ray衍射、傅立叶红外光谱仪、紫外分光光度计、对其进行了表征。测试结果表明,CeO2晶型为面心立方,粒径范围15nm～25 nm,并且CeO2的红外吸收峰明显发生蓝移。当Ti/Ce摩尔比为0.4∶1时吸收性能最好,使CeO2的光谱响应范围变宽。单体CeO2的紫外屏蔽范围在250nm～350 nm,掺杂了Ti4+离子的CeO2的紫外屏蔽范围在220nm～450 nm。
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| 关 键 词： | 掺杂 纳米CeO2 抗紫外性 |
Preparation of Ti4+ - doped Nano - CeO2 and Its Anti - ultraviolet Peformance |
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| SHI Yan-li
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ZHANG Jin-sheng
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LI-Li-hua
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Li Xiu-ping.Preparation of Ti4+ - doped Nano - CeO2 and Its Anti - ultraviolet Peformance[J].Chinese Rare Earths,2012,33(3):60-63. |
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| Authors: | SHI Yan-li ZHANG Jin-sheng LI-Li-hua Li Xiu-ping |
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| Affiliation: | 1(1.School of Chemistry and Material Science,Liaoning Shihua University,Fushun 113001,China; 2.School of Petroleum and Chemicai Technology,Liaoning Shihua University,Fushun 113001,China) |
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| Abstract: | Ti4+-doped nano-CeO2 particles were prepared by ultrasound-precipitation method with Ce(SO4)2·4H2O as raw material,the influence of Ti4+ on crystal type and anti-UV properties of CeO2 was studied.FT-IR、XRD and UV-Vis were employed to characterize the sample.The results indicated that Ti4+-doped nano-CeO2 particles were face-centered cubic with crystal size 15~25 nm.It is obviouds that infrared absorption peaks were blue shifted.When the molar ratio of Ti/Ce was o.41,the light response of nano-CeO2 particles was the best.UV-shielding performance of pure nano-CeO2 was achieved in the UV region between 250 nm and 350 nm.The UV region from 220 nm to 450 nm was shielded with doping Ti4+ in molar ratio of 0.41. |
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| Keywords: | doping nano-CeO2 anti-UV performance |
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