| Zn-TiO_2纳米管的光催化活性 |
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| 引用本文： | 梁鸿昌,欧宇达,丘文杰,张国文,李鑫,徐悦华.Zn-TiO_2纳米管的光催化活性[J].生态环境,2011,20(2):323-326. |
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| 作者姓名： | 梁鸿昌 欧宇达 丘文杰 张国文 李鑫 徐悦华 |
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| 作者单位： | 华南农业大学理学院生物材料研究所,广东广州,510642 |
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| 基金项目： | 广东省科技计划项，华南农业大学"211工程"三期重点建设项目 |
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| 摘 要： | 采用水热合成-浸渍法制备锌掺杂TiO2纳米管（Zn-TiO2纳米管）,透射电镜照片显示Zn-TiO2纳米管为两端开口形貌均一的中空管状结构,管径约6～8 nm,壁厚约1 nm,长度约50～200 nm。研究了Zn-TiO2纳米管对甲基橙的光催化性能,结果表明：掺杂适量锌提高了TiO2纳米管对甲基橙的光催化降解性能,0.4%Zn-TiO2纳米管的光催化性能最佳。同时还探讨了Zn-TiO2纳米管用量和初始pH值等因素对光催化降解甲基橙的影响,结果显示Zn-TiO2纳米管能有效地降解甲基橙。随着光催化反应进行,CODCr去除率和脱色率变化规律不完全相同,可能是由于芳基和烷基降解速率不同所致。
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| 关 键 词： | TiO2纳米管 锌掺杂 水热合成法 甲基橙 CODCr去除率 |
Study on photocatalytic activity of Zn-TiO2 nanotubes |
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| LIANG Hongchang,OU Yuda,QU Wenjie,ZHANG Guowen,LI Xin,XU Yuehua.Study on photocatalytic activity of Zn-TiO2 nanotubes[J].Ecology and Environmnet,2011,20(2):323-326. |
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| Authors: | LIANG Hongchang OU Yuda QU Wenjie ZHANG Guowen LI Xin XU Yuehua |
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| Institution: | LIANG Hongchang,OU Yuda,QIU Wenjie,ZHANG Guowen,LI Xin,XU Yuehua Institute of Biomaterial,College of Science,South China Agricultural University,Guangzhou 510642,China |
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| Abstract: | Zinc-doped titania nanotubes(Zn-TiO2 nanotubes) were synthesized using hydrothermal treatment-impregnation method,and photos of transmission electron microscopy(TEM) show that Zn-TiO2 nanotubes were hollow and open-ended,and they were measured to be about 6 to 8 nm in diameter,with about 1 nm wall thickness,and the lengths in the range of 50 to 200 nm.The photocatalytic activities of Zn-TiO2 nanotubes for the degradation of methyl orange were investigated.The results showed that the photocatalytic activitie... |
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| Keywords: | titania nanotubes zinc-doped hydrothermal method methyl orange CODCr removal efficiency |
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