钛酸盐纳米管-聚苯胺-金纳米颗粒复合材料的制备及其生物电化学性能

发布时间：2018-01-11 21:26

本文关键词：钛酸盐纳米管-聚苯胺-金纳米颗粒复合材料的制备及其生物电化学性能　出处：《化学研究》2016年01期 　论文类型：期刊论文

【摘要】：采用水热法制备出钛酸盐纳米管(TNTs),然后使用氧化聚合法将苯胺聚合到TNTs表面生成聚苯胺(PANI),最终将金纳米粒子还原到PANI表面制备出三元复合纳米材料(TNTs-PANI-GNPs).其中PANI作为交联剂链接起TNTs和GNPs形成稳定和结合紧密的三元复合纳米材料,不同的光谱和显微图像技术证实了三元复合纳米材料的成功合成.我们将辣根过氧化物酶(HRP)与三元复合纳米材料充分混合均匀后涂抹于玻碳电极表面,伏安实验结果证明HRP已实现在TNTs-PANI和TNTs-PANI-GNPs修饰电极上的直接电子转移,而且后者相较于前者对过氧化氢的催化还原电流增强了大约74.9%.TNTs-PANI-GNPs复合纳米材料修饰的生物传感器的优越电化学性能主要归因于复合材料中TNTs、PANI和GNPs三者之间的协同作用,将优点最大化,将缺点最小化.
[Abstract]:Prepared by hydrothermal method of titanate nanotubes (TNTs), and then use the oxidative polymerization of aniline was polymerized to generate TNTs polyaniline (PANI), the final surface of gold nanoparticles onto the surface of PANI prepared three yuan nano composite material (TNTs-PANI-GNPs). The PANI as the cross linker link stability and combination of the three element composite nano materials close formation of TNTs and GNPs, different spectroscopic and microscopic image technique confirmed the successful synthesis of three element composite nanomaterials. We horseradish peroxidase (HRP) and the three element composite nano materials are fully mixed evenly coated on the surface of glassy carbon electrode voltammetry, the experimental results show that the HRP has been implemented in TNTs-PANI and direct electron TNTs-PANI-GNPs modified electrode transfer, and the latter compared to the former catalytic reduction of hydrogen peroxide enhanced current about 74.9%.TNTs-PANI-GNPs composite nano material modified organisms The superior electrochemical performance of the sensor is mainly attributable to the synergy between the TNTs, PANI and GNPs three in the composite, maximizing the advantages and minimizing the shortcomings.

【作者单位】：河南大学化学化工学院;河南大学河南省天然药物与免疫工程重点实验室;
【基金】：中国博士后科学基金会资助项目(2012M511569)
【分类号】：TB33
【正文快照】： 氧化还原酶修饰电极在生物传感器、生物电子学和生物燃料电池方面具有良好的应用前景,因而近年来受到了广泛的关注和研究[1],在这些应用中酶与电极之间的电子转移行为是决定所制备酶器件性能的关键因素[2].由于电极材料和酶固定方法是影响酶与电极之间直接电子传递的重要因素[

【相似文献】