| Er3+∶YAlO3/Fe掺杂TiO2复合物的制备及光催化活性研究 |
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| 引用本文： | 程春萍. Er3+∶YAlO3/Fe掺杂TiO2复合物的制备及光催化活性研究[J]. 稀土, 2012, 33(3): 64-69 |
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| 作者姓名： | 程春萍 |
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| 作者单位： | 包头师范学院化学学院,内蒙包头,014030 |
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| 摘 要： | 对TiO2半导体材料进行改性,分别通过溶胶凝胶、超声波分散和溶液沸腾的方法合成了Er3+∶YAlO3/Fe掺杂TiO2复合物光催化剂,并且采用XRD和SEM进行表征,研究了各种因素在太阳光照射下降解酸性红B的催化活性,也考察了Er3+∶YAlO3的包覆量、Er3+∶YAlO3/Fe掺杂TiO2的量、太阳光照射时间、酸性红B的初始浓度和氯化钠浓度等其降解过程用UV-Vis光谱进行检测。实验结果表明,加入上转光剂之后降解率大幅度增加,改性后的光催化剂可以有效地降解染料废水。
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| 关 键 词： | Er3+∶YAlO3/Fe掺杂TiO2复合物 上转光剂 太阳光 光催化 |
Preparation of Er3 +: YAlO3/Fe -doped TiO2 and Its Application in Photocatalytic Degradation of Dyes under Solar Light Irradiation |
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| CHENG Chun-ping. Preparation of Er3 +: YAlO3/Fe -doped TiO2 and Its Application in Photocatalytic Degradation of Dyes under Solar Light Irradiation[J]. Chinese Rare Earths, 2012, 33(3): 64-69 |
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| Authors: | CHENG Chun-ping |
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| Affiliation: | CHENG Chun-ping(Department of Chemistry,Baotou Normal College,Baotou 014030,China) |
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| Abstract: | In this work,Er3+YAlO3/Fe-doped TiO2 composite,a novel photocatalyst,was synthesized by ultrasonic dispersion and liquid boiling method and characterized by X-ray diffraction(XRD) and scanning electron microscope(SEM),the photocatalytic activity of Er3+YAlO3/Fe-doped TiO2 composite was evaluated through the degradation of acid red B dye under solar light irradiation.The effects of Er3+YAlO3 content,solar light irradiation time,dye initial concentration and Er3+YAlO3/Fe-doped TiO2 amount as well as organic dyes on the photocatalytic degradation were also investigated.The experimental results indicated that the Er3+YAlO3/Fe-doped TiO2 composite can effectively utilize solar energy to degrade acid red B dye and its photocatalytic activity was higher than that of Fe-doped TiO2 under the same condition. |
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| Keywords: | Er3+YAlO3/Fe-doped TiO2 composite upconversion luminescence agent solar light photocatalytsis |
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