| 反应液pH值对Nb,F双掺杂纳米TiO2的影响 |
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| 引用本文： | 高明琦,;陈丽洁.反应液pH值对Nb,F双掺杂纳米TiO2的影响[J].河北农业技术师范学院学报,2014(4):23-30. |
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| 作者姓名： | 高明琦 ;陈丽洁 |
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| 作者单位： | [1]河北科技师范学院物理系,河北秦皇岛066004; [2]西安交通大学 教育部重点实验室 国际电介质研究中心;,河北秦皇岛066004; [3]济南军区青岛第一疗养院口腔科,河北秦皇岛066004; |
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| 基金项目： | 河北科技师范学院博士基金项目;陕西省专项科研计划项目（项目编号：12JKD525）;陕西省自然科学基金项目（项目编号：2010JQ6002）. |
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| 摘 要： | 以Nb2O5粉末和氢氟酸（HF）为掺杂源,以乳酸和三乙醇胺为螯合剂,按一定比例配制出不同pH值的钛溶胶反应液,之后通过水热反应制备出Nb和F双掺杂的TiO2纳米颗粒（NFT）.前驱体反应液的酸碱度（pH值）直接影响产物的晶相结构和禁带宽度.结果表明,反应液的酸性或碱性增强,使产物的结晶性能提高;如果反应液接近中性,产物的禁带宽度变窄.碱性环境下水热产物制备的光阳极组装的染料敏化太阳能电池比酸性环境得到的电池具有更高的转换效率.
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| 关 键 词： | 纳米TiO2 双掺杂 pH值 水热合成法 光阳极 染料敏化太阳能电池 |
Effect of Precursor Solution pH Value on Nb,F-codoped TiO2 |
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| Institution: | GAO Ming-qi,CHEN Li-jie ( 1 Department of Physics, Hebei Normal University of Science ＆ Technology Qinhuangdao Hebei ,066004 ; 2 Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education ＆ International Center for Dielectric Research, Xi＇ an Jiaotong University ;3 Department of Stomatology, Qingdao 1 st Sanatorium of Ji＇ nan Military Command ; China) |
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| Abstract: | The Ti-precursor sol-solutions with different pH values were prepared using lactic acid and triethaaffected by the pH value of the precursor solution. The crystallinity of the NFT would be improved if the acidity or alkaline of the sol-solution was enhanced. And if the sol-solution was closed to neutral, the band gap of the product would be decreased. The relative energy conversion effieiencies of the ceils based on NFT photoanodes synthesized in alkaline environment would be higher than those of the cells based on acidity environment. |
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| Keywords: | pH value hydrothermal Ti02 nanoparticles codoping photoanode dye sensitized solar cell |
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