| 具有可见光响应的改性纳米TiO2研究进展 |
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| 引用本文： | 裴振昭,王飞,何顺林,梁亚涛,宋宁.具有可见光响应的改性纳米TiO2研究进展[J].河北工程大学学报,2012,29(2):85-89. |
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| 作者姓名： | 裴振昭 王飞 何顺林 梁亚涛 宋宁 |
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| 作者单位： | 河北工程大学理学院,河北邯郸 056038;河北工程大学理学院,河北邯郸 056038;河北工程大学理学院,河北邯郸 056038;河北工程大学理学院,河北邯郸 056038;河北工程大学理学院,河北邯郸 056038 |
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| 基金项目： | 河北工程大学博士基金;中国科学院光化学转换与功能材料重点实验室开放基金(PCOM201126) |
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| 摘 要： | 通过改性可以改变TiO2只有在紫外光激发下才显示出较高光催化效率的特点,使其在可见光范围也显示出较高的活性。本文综述了纳米TiO2改性方面的研究进展,指出通过元素掺杂、贵金属修饰、聚合物修饰、半导体复合、染料敏化等手段对TiO2进行改性,可以减小纳米TiO2禁带,提高纳米TiO2对可见光的响应性和量子效率。分析认为,实验室制备的改性纳米TiO2可见光光催化效果已经比较理想,解决回收难、工程易操作性等问题是未来的发展方向。
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| 关 键 词： | 光催化 TiO2 可见光 |
| 收稿时间： | 2011/11/28 0:00:00 |
| 修稿时间： | 2011/12/18 0:00:00 |
Progress in research on modified nano-Ti02 with visible light response |
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| Authors: | PEI Zhen-zhao WANG Fei HE Shun-lin LIANG Ya-tao and SONG Ning |
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| Affiliation: | College of Science,Hebei University of Engineering,Hebei Handan 056038,China;College of Science,Hebei University of Engineering,Hebei Handan 056038,China;College of Science,Hebei University of Engineering,Hebei Handan 056038,China;College of Science,Hebei University of Engineering,Hebei Handan 056038,China;College of Science,Hebei University of Engineering,Hebei Handan 056038,China |
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| Abstract: | By modification, TiO2 shows relatively high photocatalysis activity in visible light range, which changes the characteristics of only showing relatively high efficiency in UV light irradiation. This paper reviews the researoh developments on modification of nano-TiO2. It points out that bandgap can be decreased and visible light responsiveness and quantum efficiency of nano-TiO2 can be increased via element doping, noble metal modification, polymer modification, coupled semicon- ductois, dye sensitization and so on. The analysis suggests that effect of visible light photocatalysis of modified nano-TiO2 prepared in the lab has already been relative ideal. The future development di- rection is to solve the difficulty of recovery and easy operating in engineering. |
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| Keywords: | photocatalysis TiO2 visible light |
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