四磺化酞菁氧钛自组装膜终稿.doc

本科生毕业论文 四磺化酞菁氧钛自组装膜的制备及性能研究 STUDY OF FABRICATION AND PROPERTIES OF SELF-ASSEMBLY TETRA-SULFONATED OXY-TITANIUM PHTHALOCYANINE FILMS 摘 要 本文采用固相法合成了四磺化酞菁氧钛（TiOTsPc）。通过静电自组装技术在玻璃介质上制备了PEI/ TiOTsPc、DR/TiOTsPc自组装膜，并通过紫外光照射使后者膜层-层之间的离子键转变为共价键，使得自组装酞菁膜的牢固度有了很大提高。采用紫外-可见光谱仪跟踪组装过程，结果表明组装过程是均匀、连续且有规律的，膜层层数是可控的。利用原子力显微镜(AFM)研究了自组装膜的表面形貌，结果表明薄膜的表面紧密地填充了球形的纳米级颗粒。采用循环伏安法研究了DR/TiOTsPc多层膜修饰电极对三氯乙酸的电催化还原性能。 关键词：静电自组装 四磺化酞菁氧钛 循环伏安法 电化学催化 ABSTRACT In this dissertation, TiOTsPc compound was synthesized by solid phase method. PEI/ TiOTsPc and DR/TiOTsPc multiplayer films were fabricated on the glass by the electrostatic self-assembly (ESA) technique. And ultraviolet radiation shining is used on DR/TiOTsPc multilayer film to make the electrovalent bond between layer and layer convert into covalent bond, which improving firmness of self-assembly phthalocyanine film. The alternating multilayer assemblies were characterized by UV–Vis spectroscopy, showing the regularly consecutive adsorption process, and the number of bilayers is controllable. The film surface was smooth and homogeneous as indicated by atomic force microscopy. The closely packed nanoparticles can be easily seen on the film surface.Catalytic electroreduction performance of the modified electrode of DR/TiOTsPc multilayer films on trichloroacetic acid was studied by cyclic voltammetry. Key words: electrostatic self-assembly tetra-sulfonate oxy-titanium phthalocyanine cyclic voltammetry electrochemical catalysis 目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc233034740 摘 要 HYPERLINK \l _Toc233034742 ABSTRACT HYPERLINK \l _Toc233034743 目录 HYPERLINK \l _Toc233034744 第一章 绪论 PAGEREF _Toc233034744 \h 1 HYPERLINK \l _Toc233034745 1.1引言 PAGEREF _Toc233034745 \h 1 HYPERLINK \l _Toc233034746 1.2酞菁化合物 PAGEREF _Toc233034746 \h 1 HYPERLINK \l _Toc233034747 1.2.1 酞菁化合物的结构和性质 PAGEREF _Toc233034747 \h 1 HYPERLINK \l _Toc233034748 1.2.2 酞菁的应用 PAGEREF _Toc233034748 \h 3 HYPERLINK \l _Toc233034749 1.3 自组装成膜技术 PAGEREF _Toc2330