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| 下载次数 | 被引频次 | 阅读次数 |
以钛酸丁酯和硝酸钇为主要原料,采用溶胶-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12～25 nm.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Y3+的掺杂摩尔分数为0.5%,催化剂质量浓度为0.2 g/L,紫外光照80 min时,RhB的降解率可达98.2%,较纯TiO2光催化活性提高了160%.
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 1225 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.The degradation rate of RhB was 98.2 % under UV-light irradiation of 80 min,whose photocatalysic activity is increased 160 % higher than that of pure TiO2.
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基本信息:
DOI：
中图分类号:O643.36
引用信息:
[1]丁欣宇,景晓辉,施磊等.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,No.25(02):44-46+72.
基金信息:
江苏省高校自然科学计划项目(06KJD530153);; 南通市应用研究计划项目(K2006017)