| 锐钛矿型二氧化钛纳米粉体的IR光谱与光催化性能研究 |
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| 引用本文： | 孙丽萍,高山,赵辉,霍丽华,赵经贵.锐钛矿型二氧化钛纳米粉体的IR光谱与光催化性能研究[J].光散射学报,2003,15(4):300-302. |
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| 作者姓名： | 孙丽萍 高山 赵辉 霍丽华 赵经贵 |
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| 作者单位： | 黑龙江大学化学化工学院,哈尔滨,150080 |
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| 基金项目： | 国家自然科学基金(20101003)，黑龙江省高校骨干教师创新计划，省海外学人重点基金资助 |
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| 摘 要： | 采用溶胶-凝胶法制备了TiO2光催化剂,研究了不同温度下焙烧TiO2粉体的XRD和FT-IR光谱。400℃焙烧后,相应有机物的红外吸收峰消失,随着焙烧温度的升高,粉体粒径变大,800-420cm-1之间的吸收峰逐渐锐化,700℃焙烧的FT-IR谱的423cm-1为金红石型TiO2的特征Ti-O键振动。500℃焙烧的锐钛矿型TiO2粉体对水杨酸具有较好的光催化活性。
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| 关 键 词： | 二氧化钛纳米晶 红外光谱 光催化 |
| 文章编号： | 1004-5929(2003)04-0300-03 |
| 收稿时间： | 2003/7/22 |
| 修稿时间： | 2003年7月22日 |
Study on FT-IR Spectroscopy and Photocatalytic Activity of Anatase Titanium Oxide Nanocrystal |
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| SUN Li-ping,GAO Shan,ZHAO Hui,HUO Li-hua,ZHAO Jing-gui.Study on FT-IR Spectroscopy and Photocatalytic Activity of Anatase Titanium Oxide Nanocrystal[J].Chinese Journal of Light Scattering,2003,15(4):300-302. |
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| Authors: | SUN Li-ping GAO Shan ZHAO Hui HUO Li-hua ZHAO Jing-gui |
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| Abstract: | Nano-sized TiO2 powders were prepared by sol-gel method. XRD and FT-IR spectra of the TiO2 powders sintered at different temperature were studied. The peaks of organic compounds were disappeared after sintered at 400℃ in FT-IR spectrum. With the sinter temperature increase, the size of the TiO2 particles increase, the absorbance peaks in the range of 800-420 cm~(-1) became strain. After sintered at 800℃, the TiO2 powders transferred to rutile phase completely and a new vibration band appeared at 423cm~(-1) in the FT-IR spectrum is assigned to the characteristic Ti-O vibration of the rutile phase. The anatase TiO2 treated at 500 ℃ has better photocatalytic activity to salicylic acid. |
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| Keywords: | TiO_2 nanocrystal FT-IR spectrum photocatalytic activity |
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