| 纳米TiO_2修饰电极对鲁米诺电化学发光的增敏及TiO_2晶型的影响 |
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| 引用本文： | 吉利,余志敏,屠一锋. 纳米TiO_2修饰电极对鲁米诺电化学发光的增敏及TiO_2晶型的影响[J]. 分析测试学报, 2010, 29(6). DOI: 10.3969/j.issn.1004-4957.2010.06.003 |
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| 作者姓名： | 吉利 余志敏 屠一锋 |
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| 作者单位： | 苏州大学,化学系,分析化学研究所,江苏,苏州,215123 |
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| 基金项目： | 国家自然科学基金资助项目，江苏省自然科学基金资助项目，苏州市科技项目资助 |
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| 摘 要： | 该文水解合成并通过煅烧改变晶型,获得了金红石和锐钛矿两种晶型混合的二氧化钛纳米粒子。利用紫外可见分光光度法(UV-Vis)、激光粒度分析(LPSA)、X射线多晶衍射分析(XRD)和冷场发射扫描电镜(SEM)等方法对样品进行了表征。制备了以氧化铟锡(ITO)玻璃为基底的纳米TiO2修饰电极,并研究了晶型对鲁米诺电化学发光(ECL)的增敏作用的影响。结果表明,当粒径较小,经650℃煅烧处理形成混晶时,纳米TiO/ITO修饰电极对鲁米诺电化学发光的增敏效果最明显,为裸电极的7.5倍。
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| 关 键 词： | 电化学发光 混晶 纳米TiO2 鲁米诺 增敏作用 |
Sensitization for Electrochemiluminescence of Luminol from Nano-TiO2 Modified Electrode and Its Influence on Crystal Phase |
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| JI Li,YU Zhi-min,TU Yi-feng. Sensitization for Electrochemiluminescence of Luminol from Nano-TiO2 Modified Electrode and Its Influence on Crystal Phase[J]. Journal of Instrumental Analysis, 2010, 29(6). DOI: 10.3969/j.issn.1004-4957.2010.06.003 |
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| Authors: | JI Li YU Zhi-min TU Yi-feng |
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| Affiliation: | JI Li,YU Zhi-min,TU Yi-feng(Institute of Analytical Chemistry,Department of Chemistry,Suzhou University,Suzhou 215123,China) |
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| Abstract: | Nano-TiO2(Titania) was synthesized by hydrolytic reaction.The crystal phase of nano-TiO2 was transformed by calcination at different temperatures to obtain the mixed crystal of anatase and rutile.The methods such as UV-Vis spectrometry,laser particle size analysis(LPSA),X-ray diffraction analysis(XRD) and scanning electron microscopy(SEM) were applied to characterize the properties of nano-TiO2.The nano-TiO2 modified ITO(indium tin oxide) electrode(TiO2/ITO electrode) was prepared by immobilization of nano-... |
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| Keywords: | electrochemiluminescence mixed crystal Nano-TiO2 Luminol sensitization |
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