| 金复合介孔SBA-15吸附血红蛋白在H2O2电催化反应中的应用 |
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| 引用本文： | 周丽绘,鲜跃仲,周宇艳,胡军,刘洪来. 金复合介孔SBA-15吸附血红蛋白在H2O2电催化反应中的应用[J]. 化学学报, 2005, 63(23): 2117-2120 |
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| 作者姓名： | 周丽绘 鲜跃仲 周宇艳 胡军 刘洪来 |
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| 作者单位： | 周丽绘（华东理工大学化学系,先进功能材料与制备教育部重点实验室,上海,200237）;鲜跃仲（华东师范大学化学系,上海,200062）;周宇艳（华东师范大学化学系,上海,200062）;胡军（华东理工大学化学系,先进功能材料与制备教育部重点实验室,上海,200237）;刘洪来（华东理工大学化学系,先进功能材料与制备教育部重点实验室,上海,200237） |
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| 基金项目： | 国家自然科学基金(Nos.20236010,20476025);上海市教委资助项目. |
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| 摘 要： | 以P123嵌段共聚物表面活性剂为模板剂制备介孔氧化硅SBA-15,并用沉积-沉淀(DP)法在SBA-15介孔表面负载纳米Au颗粒制备得到金复合介孔SBA-15材料(Au-SBA-15).再以Au-SBA-15材料制备玻碳修饰电极,将血红蛋白固定于修饰电极上用循环伏安法考察其对不同浓度H2O2溶液的电催化反应.在固定了血红蛋白的Hb/Au-SBA-15/GC修饰电极上,H2O2在+0.95V处出现了氧化峰,且随着H2O2浓度的增大峰电流不断增加,说明金复合介孔氧化硅材料具有良好的生物兼容性,有利于血红蛋白的固定,其修饰电极对H2O2溶液具有一定的电催化作用.
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| 关 键 词： | 介孔SBA-15 金 血红蛋白 H2O2 电催化反应 |
| 收稿时间： | 2005-04-13 |
| 修稿时间： | 2005-04-13 |
Adsorption of Hemoglobin on Au-modified Mesoporous SBA-15 and Application in Electrocatalysis of H2O2 Solution |
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| ZHOU,Li-Hui. Adsorption of Hemoglobin on Au-modified Mesoporous SBA-15 and Application in Electrocatalysis of H2O2 Solution[J]. Acta Chimica Sinica, 2005, 63(23): 2117-2120 |
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| Authors: | ZHOU Li-Hui |
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| Affiliation: | (Department of Chemistry, Lab for Advanced Material, East China University of Science and Technology, Shanghai 200237)(Department of Chemistry, East China Normal University, Shanghai 200062) |
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| Abstract: | Mesoporous SBA-15 was prepared by using Pluronic P123 triblock copolymer as structure-directing agents and Au-modified mesoporous SBA-15 (Au-SBA-15) was synthesized by a Deposition-Precipitation methods. The surface of glass carbon was modified with Au-SBA-15 material (named Au-SBA-15/GC electrode), then hemoglobin (Hb) was immobilized on Au-SBA-15/GC electrode (named Hb/Au- SBA-15/GC electrode). The Hb/Au-SBA-15/GC electrode was applied to electrochemical determination of different concentration of H2O2 solution. An oxidation peak at 0.95 V was observed, and the peak current was found to be increased with H2O2 concentration increasing. The results indicate that the Hb/Au-SBA-15/GC modified electrode exhibited certain electrocatalytic activity. |
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| Keywords: | mesoporous SBA-15 gold Hb H2O2 electrocatalysis |
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