| Eu~(3+)掺杂TiO_2光催化剂的制备及废水处理性能研究 |
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| 引用本文： | 王丹军,郭莉,高利锋,张理平,张丹,胡苗苗. Eu~(3+)掺杂TiO_2光催化剂的制备及废水处理性能研究[J]. 应用化工, 2010, 39(2): 155-160 |
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| 作者姓名： | 王丹军 郭莉 高利锋 张理平 张丹 胡苗苗 |
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| 作者单位： | 延安大学,化学与化工学院,陕西,延安,716000 |
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| 基金项目： | 国家自然科学基金(20773104);;教育部新世纪优秀人才支持计划(NCET-06-0891);;教育部重点基金(208143);;陕西省教育厅专项科研基金(07JK435、09K817);;重点实验室重点科研基金(08JZ81);;陕西省自然科学基金(2006B08) |
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| 摘 要： | 以钛酸四正丁酯、氯化铕为原料,采用溶胶-凝胶法合成了Eu3+掺杂纳米TiO2光催化剂,借助X-射线粉末衍射(XRD)及UV-Vis测试手段对样品进行了表征,并以罗丹明B为模型污染物考察了Eu3+掺杂量对样品光催化活性的影响规律。XRD分析表明,所得粉体均为锐钛矿相纳米TiO2,且Eu3+掺杂后随着掺杂量的增加,纳米TiO2特征衍射峰宽化,强度降低;UV-Vis光谱分析表明,适量铕掺杂使得催化剂在400~600 nm的可见光区对光的吸收显著增强,对光具有更高的利用率;以罗丹明B为降解物的光催化实验表明,当Eu3+掺杂量为0.5%时其光催化活性最好,并将该光催化剂用于炼油厂废水的处理,对其实际应用进行了探索。
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| 关 键 词： | 纳米TiO2 Eu3+掺杂 溶胶-凝胶法 光催化活性 |
Synthesis of Eu~(3+) doped nanometer titanium dioxide photocatalyst and its application in wastewater treatment |
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| WANG Dan-jun,GUO Li,GAO Li-feng,ZHANG Li-ping,ZHANG Dan,HU Miao-miao. Synthesis of Eu~(3+) doped nanometer titanium dioxide photocatalyst and its application in wastewater treatment[J]. Applied chemical industry, 2010, 39(2): 155-160 |
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| Authors: | WANG Dan-jun GUO Li GAO Li-feng ZHANG Li-ping ZHANG Dan HU Miao-miao |
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| Affiliation: | Department of Chemistry & Chemical Engineering;Yan'an University;Yan'an 716000;China |
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| Abstract: | Using tetrabutyltitanate,europium chloride as starting materials,Eu3+ doped nanometer TiO2 was synthesized by sol-gel method,and characterized by XRD and UV-Vis techniques.Rhodamine B was chosen as model pollutant to evaluate photocatalytic activity.XRD analysis results indicated that the as-synthesized samples were pure phase anatase nanometer TiO2.UV-Vis absorption spectrum indicated after Eu3+ doped TiO2 had stronger absorption in UV region.Photocatalytic experiment results show when the doping quantity ... |
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| Keywords: | nanometer titanium dioxide Eu3+doped sol-gel method photocatalytic activity |
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