基于γ-氧化铁聚多巴胺-没食子酸的螯合电极的制备及其分析性能测试
毕业论文关键词 γ-氧化铁 聚多巴胺 没食子酸 螯合电极
毕业设计说明书（论文）外文摘要
Title The preparation and analysis performance of chelate electrode based on γ-Fe2O3/PDA-GA
Abstract
This paper explores the synthesis method of γ-Fe2O3 nanomaterials, and its binding process with polydopamine (PDA) and gallic acid (GA) and other materials, producing a new-type nanomaterial with high biocompatibility and strong complexing ability.Analysis of morphology characterization and electrochemical behavior of this new material are mainly from two aspects: Identify its structure by infrared spectroscopy and transmission electron microscopy analysis,focusing on its composition and potential properties;Investigate its chelaton with metallic ions and catalytic effects by electrochemical methods,particularly explore its chelation with copper ions(Cu2+) and catalysis on H2O2 .The analysis of material properties were measured to determine the practical value and scientific significance , and its possible application in the future will be discussed. According to the result, the fast response was proportional to H2O2 concentration in the range of 10-6~3×10-4 M with a detection limit and sensitivity of 1.9 μM (S/N = 3) (S/N = 3) and 65.6 mA•M-1•cm-2, respectively.
Keywords γ-Fe2O3 polydopamine(PDA) gallic acid(GA) chelate electrodes
目 次
1 绪论 1
1.1 引言 1
1.2 电化学传感器简介 1
1.3 纳米材料简介 1
1.4 纳米材料在传感器中的应用 2
1.5 γ-氧化铁/聚多巴胺-没食子酸复合材料的制备 3
1.6 γ-氧化铁/聚多巴胺-没食子酸复合材料的形貌表征及电化学测试 7
1.7 基于γ-氧化铁/聚多巴胺-没食子酸复合材料螯合铜离子电极构筑 9
2 基于γ-氧化铁/聚多巴胺-没食子酸的螯合电极的制备及其分析性能测试 10
2.1 引言 11
2.2 实验部分 11
2.3 结果与讨论 14
2.4 小结 21
结 论 22
致 谢 23
参考文献24
1 绪论
1.1 引言
随着人类科学技术的不断发展，材料逐渐成为日前科学研究的重心之一，特别是纳米材料(nanometer material)在工业、农业、医疗、电子技术等方面的应用，得到了学术界的广泛关注，被誉为本世纪最有潜力的材料之一。 由于纳米微粒的表面效应、量子尺寸效应、小尺寸效应和宏观量子隧道效应等，使其在磁、光、电等方面具有一般材料不具备的特性。因此纳米微粒在磁性材料、电子材料、光学材料、高致密度材料的烧结、催化、传感、陶瓷增韧等方面有广阔的应用前景[1,2]。
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