| 掺杂钇的纳米TiO_2的制备及光催化性能研究 |
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| 引用本文： | 丁欣宇,景晓辉,施磊,胡震超,贾海峰.掺杂钇的纳米TiO_2的制备及光催化性能研究[J].南通大学学报(自然科学版),2008,7(2). |
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| 作者姓名： | 丁欣宇 景晓辉 施磊 胡震超 贾海峰 |
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| 作者单位： | 南通大学,化学化工学院,江苏,南通,226007 |
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| 基金项目： | 江苏省自然科学基金
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江苏省南通市应用研究计划项目 |
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| 摘 要： | 以钛酸丁酯和硝酸钇为主要原料，采用溶胶一凝胶法制备了掺杂钇的纳米TiO2（Y—TiO2）．用XRD、TEM等方法对其进行了表征，晶型为锐钛矿，粒径范围12～25nm，以罗丹明B（RhB）为目标降解物，考察催化剂的光催化活性。结果显示，当Y^3＋的掺杂摩尔分数为0．5％，催化剂质量浓度为0．2g／L，紫外光照80min时，RhB的降解率可达98．2％，较纯TiO2光催化活性提高了160％。
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| 关 键 词： | 纳米TiO2 钇 掺杂 光催化 制备 |
Study on Preparation and Photocatalytic Properties of Nanosized Y-doped TiO_2 |
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| Authors: | DING Xin-yu JING Xiao-hui SHI Lei HU Zhen-chao JIA Hai-feng |
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| Institution: | School of Chemistry and Chemical Engineering;Nantong University;Nantong 226007;China |
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| Abstract: | Nanosized Y-doped TiO2(Y-TiO2) was prepared using tetrabutyl titanate and yttrium nitrate as major raw materials by sol-gel process.The product was characterized by XRD and TEM.The results showed that the material was anatase and the particle size was in the range of 12~25 nm.The photocatalytic activity of the catalyst was evaluated by method of catalytic degradation of Rhodamine-B(RhB).For the photodegradation of RhB,the optimal Y3+ dopant concentration is 0.5 % and the concentration of catalyst is 0.2 g/L... |
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| Keywords: | nanosized TiO2 yttrium doping photocatalysis preparation |
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