二氧化锆纳米管阵列的表面处理及性能研究-材料物理与化学专业论文.docx

THE SURFACE TREATMENT AND PROPERTIES RESEARCH OF ZIRCONIA NANOTUBE ARRAYS ABSTRACT In this paper, the zirconia nanotube arrays were synthesized by electrochemical anodization. SEM, XRD investigations were carried out to show the microstructure and characters of the nanotubes. FTIR and UV-VIS were used to measure the molecular constructure and the results of the experiment. The adsorption and decolouration of zirconia nanotube arrays were investigated under the organic methyl orange and inorganic Cr(VI). Furthermore, we discussed the photoluminescence properties of ZrO2 nanotubes doped with Er3+. ZrO2 nanotube arrays were prepared in organic electrolyte containing F- by anodization. A series experiments showed that highly self-organized ZrO2 nanotube arrays can be formed in organic electrolyte of formamide (FA) and glycerol (GE) (volume-ratio 1:1) containing 1.0 wt % NH4F which also explode smooth and straight walls, homogeneous pipe diameter and long length. Besides, ZrO2 were trimmed and optimized from different treatment technologies. The formation mechanism of the ZrO2 nanotube arrays was discussed. We discussed the adsorption and decolouration properties of the ZrO2 nanotube arrays. After annealing, the crystal structure of ZrO2 nanotube arrays was changed to crystalline, which influenced the adsorption and decolouration effect. At the same time, we matched the results to the ZrO2 powder. As it can be concluded, the ZrO2 nanotube arrays had a better effect on the adsorption and decolouration. The photoluminescence properties of Er3+ doped ZrO2 nanotube arrrays were studied. ZrO2:Er3+ nanotubes had obvious characteristic emissions at room temperature. The main emission lights were royal light. The annealed and unannealed nanotube arrays photoluminescence effect were measured and discussed the energy level transition. KEY WORDS: anodization, ZrO2 nanotubes, adsorption effect, photoluminescence property iii 第一章 绪 论 1.1 引言 自从进入90 年代以来，纳米材料研究的内涵不断扩大，领域逐渐拓宽，