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化学学报
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化学学报 ›› 2005, Vol. 63 ›› Issue (23): 2117-2120. 上一篇    下一篇

研究论文

金复合介孔SBA-15吸附血红蛋白在H2O2电催化反应中的应用

周丽绘1, 鲜跃仲2, 周宇艳2, 胡军1, 刘洪来1   

  1. 1. 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;
    2. 华东师范大学化学系, 上海, 200062
  • 投稿日期:2005-04-13 修回日期:2005-08-22 发布日期:2014-02-14
  • 通讯作者: 刘洪来,E-mail:hlliu@ecust.edu.cn E-mail:hlliu@ecust.edu.cn
  • 基金资助:

    国家自然科学基金(Nos.20236010,20476025);上海市教委资助项目.

Adsorption of Hemoglobin on Au-modified Mesoporous SBA-15 and Application in Electrocatalysis of H2O2 Solution

ZHOU Li-Hui1, XIAN Yue-Zhong2, ZHOU Yu-Yan2, HU Jun1, LIU Hong-Lai1   

  1. 1. Department of Chemistry, Lab for Advanced Material, East China University of Science and Technology, Shanghai 200237;
    2. Department of Chemistry, East China Normal University, Shanghai 200062
  • Received:2005-04-13 Revised:2005-08-22 Published:2014-02-14

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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+0.95 V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.

关键词: 介孔SBA-15, 金, 血红蛋白, H2O2, 电催化反应

Mesoporous SBA-15 was prepared by using Pluronic P123 triblock copolymer as struc-ture-directing agents and Au-modified mesoporous SBA-15 (Au-SBA-15) was synthesized by a Deposi-tion-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 determi-nation 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.

Key words: mesoporous SBA-15, gold, Hb, H2O2, electrocatalysis