| Ni(OH)2修饰对a-Fe2O3薄膜光电化学性能的增强效应 |
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| 引用本文： | 王海花,何涛,董彦梓,韩冬,赵玉华.Ni(OH)2修饰对a-Fe2O3薄膜光电化学性能的增强效应[J].工业催化,2018,26(1):42-45. |
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| 作者姓名： | 王海花 何涛 董彦梓 韩冬 赵玉华 |
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| 作者单位： | 1.烟台大学化工化工学院,山东 烟台 264005;2.烟台市食品药品检验检测中心,山东 烟台264005 |
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| 基金项目： | 国家自然科学基金(21171144);烟台大学研究生科技创新基金(YDYB1714) |
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| 摘 要： | 利用一种简便的电沉积方法制备氧化铁薄膜,并在过程中引入Ni(OH)2进行修饰,对具体电沉积实验参数进行优化,从而建立最佳制备条件。利用场发射扫描电子显微镜、X射线粉末衍射对Fe2O3/Ni(OH)2光电极膜的结构进行表征。利用循环伏安和计时电流测量析氧过电位和光电流密度。结果表明,Ni(OH)2修饰的α-Fe2O3薄膜可提高光生电子与空穴的分离效率,从而显著提高光电催化活性。
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| 关 键 词： | 催化化学 Fe2O3 光催化 光电催化 氢氧化镍 |
Photoelectrochemical enhancement effect of Ni(OH)2 modification on a-Fe2O3 film |
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| Wang Haihua,He Tao,Dong Yanzi,Han Dong,Zhao Yuhua.Photoelectrochemical enhancement effect of Ni(OH)2 modification on a-Fe2O3 film[J].Industrial Catalysis,2018,26(1):42-45. |
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| Authors: | Wang Haihua He Tao Dong Yanzi Han Dong Zhao Yuhua |
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| Affiliation: | 1.College of chemistry and chemical engineering,Yantai University,Yantai 264005,Shandong,China;2.Yantai food and drug inspection and testing center,Yantai 264005,Shandong,China |
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| Abstract: | A simple electrochemical deposition process is developed herein to prepare Fe2O3 films,Ni(OH)2 layer is then electrochemically deposited to promote the photoactivity of the Fe2O3 film.In this work,the preparative parameters are optimized.Field emission scanning electron microscope (FE-SEM) and powder X-ray diffraction technique (XRD) are used to characterize the film structure.Cyclic voltammerty (CV) and chronoamperametry (i-t) techniques are applied to measure the OER overpotential and photocurrent density.The outcome of this work indicates that Ni(OH)2 loading can effectively enhance the separation of photogenerated electron and hole pairs which is responsible for the remarkable improvement of the photoactivity. |
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| Keywords: | catalytic chemistry Fe2O3 photocatalysis photoelectrocatalysis Ni(OH)2 |
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