| Pr 3+/TiO2催化剂的制备及光催化性能分析 |
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| 引用本文： | 刘丽静.Pr 3+/TiO2催化剂的制备及光催化性能分析[J].重庆大学学报(自然科学版),2015,38(3):149-153. |
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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 化学院,内蒙古 包头,014030 |
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| 基金项目： | 国家自然科学基金资助项目(21364007)。Supported by National Natural Science Foundation of China (21364007)． |
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| 摘 要： | 采用溶胶凝胶法制备了不同浓度、不同煅烧温度下Pr3+掺杂TiO2光催化剂。对所制样品进行XRD、FT-IR、SEM表征,通过降解碱性品红溶液来测试样品的光催化性能。结果表明稀土Pr3+掺杂TiO2能细化晶粒,提高热稳定性;在400℃下煅烧,n(Pr3+)/n(TiO2)=0.2%的催化剂,加入氧化剂1mL30%的双氧水,可以抑制电子和空穴复合,提高催化性能,在无灯源照射条件下,催化时间120min,降解率达到100%。
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| 关 键 词： | 溶胶 凝胶法 稀土掺杂二氧化钛 光催化 氧化剂 |
| 收稿时间： | 2015/1/15 0:00:00 |
Preparation of Pr 3+/ TiO2 photocatalyst and its photocatalytic performance |
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| LIU Lijing.Preparation of Pr 3+/ TiO2 photocatalyst and its photocatalytic performance[J].Journal of Chongqing University(Natural Science Edition),2015,38(3):149-153. |
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| Authors: | LIU Lijing |
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| Institution: | Chemistry Department, Baotou Teachers College,Baotou 014030,Inner Mongolia, P.R.China |
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| Abstract: | The Pr3 +/TiO2 photocatalyst with different amounts of doped Pr3 + and calcination temperatures are synthesized by sol-gel method and characterized by XRD,FT-IR and SEM.Basic fuchsin experiment is chosen to evaluate photocatalyst activity.The results show that the synthesized samples are anatase TiO2 with the Pr3 + doped.While it has been found that rare earth interrupts the transformation from anatase to rutile.Photocatlytic experiment results show when the sample is calcined at 400 ℃,containing 0.2% Pr3 +/TiO2 and 1 mL 30%H2 O2 ,without lighting,and t =120 min,the degradation rate is 100%. |
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| Keywords: | sol-gel method rare earth doped TiO2 photocatalyst oxidant |
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