| 锌掺杂纳米TiO2光催化剂制备条件研究 |
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| 引用本文： | 曹振娟,董帆,赵伟荣,吴忠标.锌掺杂纳米TiO2光催化剂制备条件研究[J].电子元件与材料,2007,26(8):20-23. |
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| 作者姓名： | 曹振娟 董帆 赵伟荣 吴忠标 |
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| 作者单位： | 浙江大学,环境工程系,浙江,杭州,310027;浙江大学,环境工程系,浙江,杭州,310027;浙江大学,环境工程系,浙江,杭州,310027;浙江大学,环境工程系,浙江,杭州,310027 |
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| 基金项目： | 教育部跨世纪优秀人才培养计划
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浙江省自然科学基金 |
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| 摘 要： | 采用sol-gel法制备Zn2+掺杂纳米TiO2光催化剂,以气态甲苯为模型污染物,考察了掺杂前驱体、掺杂浓度、焙烧温度及焙烧时间等制备条件对Zn2+-TiO2光催化性能的影响,并通过XRD对其结构进行了表征。结果表明:Zn2+掺杂显著提高了TiO2光催化活性;Zn2+-TiO2的最佳制备条件为硝酸锌为掺杂前驱体r,(Zn:Ti)为0.01,焙烧温度500℃、焙烧时间3.5 h。
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| 关 键 词： | 无机非金属材料 纳米二氧化钛 锌掺杂 光催化性能 sol-gel |
| 文章编号： | 1001-2028（2007）08-0020-04 |
| 修稿时间： | 2007-03-28 |
Study on the preparation conditions of Zn-doped nano-TiO2 photocatalyst |
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| CAO Zhen-juan,DONG Fan,ZHAO Wei-rong,WU Zhong-biao.Study on the preparation conditions of Zn-doped nano-TiO2 photocatalyst[J].Electronic Components & Materials,2007,26(8):20-23. |
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| Authors: | CAO Zhen-juan DONG Fan ZHAO Wei-rong WU Zhong-biao |
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| Affiliation: | Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | Nano-Zn2+-TiO2 photocatalyst based on the doping modification was prepared by the sol-gel method.The effects of preparation conditions including the precursors for Zn2+,the doped amount of Zn2+,the calcination temperature and the calcination time were investigated using photodegradation experiments of gaseous toluene under UV irradiation.The crystal structure of Zn2+-TiO2 was measured by XRD.The results indicate that doping of Zn2+ greatly enhanced its photocatalytic activity;The optimized preparation conditions of the Zn2+-TiO2 are: Zn(NO3)2.6H2O as the precursors for Zn2+,r(Zn:Ti)=0.01,calcining at 500 ℃ for 3.5 h. |
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| Keywords: | non-metallic inorganic materials nano-TiO2 Zn2+-doping photocatalytic performance sol-gel |
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