| 稀土Dy~(3+)掺杂TiO_2的制备及光催化性能研究 |
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| 引用本文： | 刘丽静.稀土Dy~(3+)掺杂TiO_2的制备及光催化性能研究[J].信阳师范学院学报(自然科学版),2015(1):98-101. |
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| 作者姓名： | 刘丽静 |
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| 作者单位： | 包头师范学院化学学院,内蒙古包头,014030 |
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| 基金项目： | 国家自然科学基金项目(21364007)；包头市重点科技发展项目 |
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| 摘 要： | 采用溶胶-凝胶法合成了不同Dy3+掺杂量、不同焙烧温度的Ti O2光催化剂.并对所制得的光催化剂进行了SEM、XRD和FT-IR的表征和光催化活性研究.结果表明:所得粉体均为锐钛矿相纳米Ti O2,稀土掺杂能细化晶粒.以酸性品红为降解物的光催化实验表明:500℃煅烧,当Dy3+掺杂量为0.20%时其光催化活性最好,加入1 m L 30%H2O2,无灯源照射,常温常压无须通氧气条件下,催化时间6 h,降解率达到81.19%.
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| 关 键 词： | Dy3+掺杂Ti O2 溶胶-凝胶法 光催化活性 氧化剂 |
Photocatalytic Property of TiO2 Catalyst Doped with Dy3+ |
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| Liu Lijing.Photocatalytic Property of TiO2 Catalyst Doped with Dy3+[J].Journal of Xinyang Teachers College(Natural Science Edition),2015(1):98-101. |
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| Authors: | Liu Lijing |
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| Institution: | Liu Lijing;Department of Chemistry,Baotou Teachers College; |
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| Abstract: | The Dy3 +/ Ti O2 photocatalyst with different amount of Dy3 +doped and different calcination temperatures were synthesized by sol-gel method,and characterized by SEM,XRD,FT-IR and photocatalytic activity. The results showed that the obtained powder was anatase Ti O2. With the Dy3 +doped,it showed that Yb3 +-Er3 +doped rare earth can refine the grain. The photocatalytic experiments of methylene blue degraded showed that the degradation rate could be 81. 19% when calcined at 500 ℃,Dy3 +/ Ti O2 molar ratio of 0. 2%,1 m L H2O2( 30%),irradiated without lighting for 6 h. |
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| Keywords: | Dy3+doped TiO2 sol-gel method photocatalytic activity oxidant |
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