CAJ | 학술논문

采用电化学阳极氧化法在纯钛片表面制备出了结构整齐有序的TiO_2纳米管阵列, 主要研究了电解液的性质、浓度以及氧化时间对TiO_2纳米管阵列形貌的影响, 并对不同电解液中TiO_2纳米管阵列的形成机理进行了初步探讨. 结果表明:在不同浓度的HF酸电解液中均可制备出规则、均匀的TiO_2纳米管阵列, 管径均匀, 表面平整, 但是纳米管的长度均较短, 约为300～350nm. 在高浓度HF电解液中, 同时获得了规则的纳米管阵列和纳米棒阵列. 在0.5wt% NaF和1mol/L Na_2SO_4中性电解液中也可以制备出表面光洁、排列整齐有序的TiO_2纳米管阵列, 纳米管长度明显长于HF酸电解液中获得的纳米管阵列, 达到了700nm, 但是阵列的表面平整度较差. 在乙二醇+0.6wt% NH_4F+2vol% H_2O有机电解液体系中可以制得超长的TiO_2纳米管阵列, 管径在150nm左右, 管长可达6μm.
채용전화학양겁양화법재순태편표면제비출료결구정제유서적TiO_2납미관진렬, 주요연구료전해액적성질、농도이급양화시간대TiO_2납미관진렬형모적영향, 병대불동전해액중TiO_2납미관진렬적형성궤리진행료초보탐토. 결과표명:재불동농도적HF산전해액중균가제비출규칙、균균적TiO_2납미관진렬, 관경균균, 표면평정, 단시납미관적장도균교단, 약위300～350nm. 재고농도HF전해액중, 동시획득료규칙적납미관진렬화납미봉진렬. 재0.5wt% NaF화1mol/L Na_2SO_4중성전해액중야가이제비출표면광길、배렬정제유서적TiO_2납미관진렬, 납미관장도명현장우HF산전해액중획득적납미관진렬, 체도료700nm, 단시진렬적표면평정도교차. 재을이순+0.6wt% NH_4F+2vol% H_2O유궤전해액체계중가이제득초장적TiO_2납미관진렬, 관경재150nm좌우, 관장가체6μm.
The highly ordered TiO_2 nanotube arrays were fabricated by anodic oxidation of titanium foil. The influences of electrolyte characteristic and concentration as well as anodization time on the morphology of TiO_2 nanotube arrays were studied, and the growth mechanics were analyzed. Results show that regular ordered TiO_2 nanotube arrays can be prepared in hydrofluoric acidic solution, the pipe diameters are uniform and the surfaces are smooth, but the lengthes are limlited in the range from 300nm to 350nm. TiO_2 nanotube arrays and nanorod arrays can be obtained in high concentrate hydrofluoric acidic solution. TiO_2 nanotube arrays with high slenderness ratios and rough surfaces are prepared in sodium fluoride and sodium sulfate electrolyte with lengths of 700nm which are longer than those prepared in hydrofluoric acidic electrolyte. TiO_2 nanotube arrays with pipe diameters of about 150nm can also be prepared in glycol, ammonium fluoride and water ethyleneglycol electrolyte, the lengths of which can reach up to 6μm.