摘要为了制备规整有序的多孔阳极氧化钛纳米管(Porous Anodic Titania Nanotubes, PATNT)阵列,本文利用电化学阳极氧化法在不同条件下制备了多孔阳极氧化钛纳米管。利用扫描电子显微镜(SEM)和电化学阳极氧化的电压-时间(V-t)曲线的测试系统对多孔阳极氧化钛纳米管的形貌和阳极氧化过程进行了表征。63621
本文分别从钛基体的预处理工艺、氧化时间、电流密度、电解液浓度等多个方面研究了二次氧化工艺对多孔阳极氧化钛纳米管形貌的影响。结果表明,经过化学抛光的钛片阳极氧化得到的多孔阳极氧化钛纳米管更加规整有序;随着阳极氧化时间的增长,纳米管的管长和管径有增加的趋势;电解液的浓度越高,形成的孔径越大;电流密度越大,形成的纳米管孔洞越大,并且越规整。
毕业论文关键词 二氧化钛 阳极氧化 二次阳极氧化
毕业设计说明书(论文)外文摘要
Title Preparation and characterization of polymer-titania composite films
Abstract
For the preparation of ordered porous anodic titanium oxide nanotubes (Porous Anodic Titania Nanotubes, PATNT) array, based on the different conditions in the preparation of porous anodic titanium oxide nanotubes by electrochemical anodic oxidation method. Using scanning electron microscopy (SEM) voltage - and electrochemical anodization time (V-t) morphology and anodic oxidation process in porous anodic titanium oxide nanotubes were characterized by testing system of curves.
This paper studied the effect of two oxidation process on the morphology of porous anodic titanium oxide nanotubes from multiple aspects of titanium substrate pretreatment process, oxidation time, current density, electrolyte concentration. The results show that, through the porous anodic titania nanotube obtained chemical polishing of titanium anodic oxidation of more orderly; with anodic oxidation time increasing, the nanotube length and diameter are increased; the higher the concentration of the electrolyte, the larger the aperture is formed; the larger current density, nanotubes void formation is greater, and more regular.
Keywords TiO2 , Oxygen Bubble Mould Effect , The two anodic oxidation
目 次
1 绪论 1
1.1 课题研究背景及其研究意义 1
1.2 阳极氧化法制备二氧化钛纳米管的研究现状 3
1.3 本课题研究存在的主要问题 4
1.4 本文的研究目标和研究内容 5
1.4.1 研究目标 5
1.3.2 研究内容 5
2 一次恒电流阳极氧化法制备PATNT膜 6
2.1 实验原料和实验设备 6
2.2 实验步骤 7
2.2.1 钛片的预处理 7
2.3 阳极氧化工艺 8
2.3.1 电解液的配制 9
2.3.2 阳极氧化 9
2.3.3 实验现象 10
2.4 钛预处理对PATNT的影响 10
2.5 阳极氧化时间对PATNT的影响 11
2.6 电解液浓度对PATNT的影响 12
2.7 本章小结 12