以非双通的阳极氧化铝表面修饰为基础的一维纳米材料制备的机理研究

项目名称： 以非双通的阳极氧化铝表面修饰为基础的一维纳米材料制备的机理研究

项目编号： No.21201043

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 无机化学

项目作者： 梁营

作者单位： 广东药学院

项目金额： 23万元

中文摘要： 多孔阳极氧化铝（AAO）是一种用途广泛的多孔固体材料，常作为模板用于制备一维纳米材料。但由于其结构和生成机理的独特性，AAO的表面性质十分复杂并难以调控，制约着其进一步应用。本项目针对不同组分和不同结构的AAO的表面电荷、表面润湿性等性能的差异，提出采用化学处理、紫外照射、等离子体方法对AAO表面进行修饰，使其表面带有不同的官能团以构建特异性能，并揭示表面组分和表面性能之间的规律。在此基础上设计非通孔的AAO作为模板来制备金属和金属氧化物纳米材料，使用原子力显微镜和X射线光电子能谱等技术探索相关的纳米材料产生机理；并基于密度泛函理论和界面化学等知识解析液体和AAO孔道内的相互作用，建立一套适用于液相和多孔材料之间相互作用的平衡模型。上述研究可有效指导纳米材料的模板法制备，也有望为纳米固态表面的性能研究建立一定的理论基础。

中文关键词： 多孔阳极氧化铝；微米-纳米结构；二氧化钛；光催化；表面改性

英文摘要： Porous anodic alumina （AAO） is a versatile porous solid material that is usually used as template to synthesis one-dimensional nanomaterials.However, due to its structure and formation mechanism of the unique nature, the surface nature of the AAO is very complicated and difficult to control, which restrict its further application.In this project,the surface property of AAO is modified by chemical method, UV light exposing and plasma treatment to obtain AAO with different surface property functionlised with different groups, based on the differenece of the different AAO surface property,incluing surface electric charges,surface wetting,trying to discover the law between composition and properties. Based on the study, We design of non-through-hole AAO as template to fabricate the metal and metal oxide nanostructure and analyze the mechanism during the synthesis by atomic force microscopy and x-ray photoelectron spectroscopy,with the help of the density functional theory and interfacial knowledge,the theoretical studies of the interaction of liquid and AAO are conducted. The equilibrium model of flow for liquid and in porous AAO is build. The above studies can be effective guidance of the synthesis of nanomaterials by templating, is also expected to establish a theoretical basis for nano-solid-state properties of

英文关键词： porous anodic alumina；micro-nano structure；TiO2；photocatalytic；suface modification