| Zr/TiO2纳米颗粒的制备及其光催化活性 |
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| 引用本文： | 刘国光,张锋,谢友海,姚琨,牛新书,李红花. Zr/TiO2纳米颗粒的制备及其光催化活性[J]. 环境科学学报, 2006, 26(5): 846-850 |
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| 作者姓名： | 刘国光 张锋 谢友海 姚琨 牛新书 李红花 |
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| 作者单位： | 1. 广东工业大学环境科学与工程学院,广州,510006;河南师范大学化学与环境科学学院,河南省环境污染控制重点实验室,新乡,453007
2. 河南师范大学化学与环境科学学院,河南省环境污染控制重点实验室,新乡,453007 |
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| 基金项目： | 河南省高校杰出科研创新人才工程项目 , 广东省自然科学基金 , 广东省广州市科技计划 |
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| 摘 要： | 以钛酸丁酯,乙醇为原料,用固相合成法制备了Zr/TiO2纳米颗粒,用XRD、TEM对其组成、颗粒大小、形貌进行了表征.通过对罗丹明B的降解反应,考察了Zr/TiO2的光催化活性.结果表明,Zr/TiO2为纳米颗粒,平均粒径为12.7 nm左右,且颗粒均匀;掺杂金属离子Zr提高了TiO2光催化效率,掺杂2.0%Zr的催化剂活性最高.Zr/TiO2的光催化反应,首先是反应物在Zr/TiO2表面发生吸附作用,然后进一步发生光催化降解.
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| 关 键 词： | TiO2 Zr 掺杂 光催化 罗丹明B |
| 文章编号： | 0253-2468(2006)05-0846-05 |
| 收稿时间： | 2005-02-18 |
| 修稿时间： | 2006-03-22 |
Preparation of nanoparticlate Zr/TiO2 and its photocatalytic activity |
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| LIU Guoguang,ZHANG Feng,XIE youhai,YAO Kun,NIU Xinshu and LI Honghua. Preparation of nanoparticlate Zr/TiO2 and its photocatalytic activity[J]. Acta Scientiae Circumstantiae, 2006, 26(5): 846-850 |
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| Authors: | LIU Guoguang ZHANG Feng XIE youhai YAO Kun NIU Xinshu LI Honghua |
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| Affiliation: | 1. Faculty of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006 ;2. College of Chemistry and Environmental Science, Henan Normal University; Henan Key Laboratory for Environmental Pollution Control, Xinxiang 453007 |
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| Abstract: | TiO2 nanoparticles were prepared by the Sol-gel method with the butyl titanate and alcohol as the starting materials, and then the Zr/TiO2 nanoparticles were prepared by the solid reaction of TiO2 and ZrOCl2?8H2O. The structure and crystal state of the powder were characterized by means of X-rays diffraction(XRD).The shape and size were analyzed with the help of transmission electron microscopy(TEM).The activity of the prepared photocatalysts were investigated by degradation reaction of Rhodamine B. The results showed that the Zr/TiO2 nanoparticles were spherical with the mean grain size of 12.7nm, and its photocatalytic activity was much higher than that of pure TiO2 particles. The optimum doping ratio of Zr to TiO2 was 2.0%, at which the highest photocatalytic degradation rate of Rhodamine B under Zr/TiO2 catalyst was measured. The photocatalytic reaction under TiO2 is occurred with the adsorption of Rhodamine B on the surface of TiO2 first. |
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| Keywords: | TiO2 Zr doping photocatalysis Rhodamine B |
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