本文選題：硅鋁酸鹽納米管 + 高嶺土納米管　； 參考：《天津大學(xué)》2015年碩士論文

【摘要】：埃洛石納米管和伊毛縞石納米管屬于天然硅鋁類納米管,它們在自然界中有一定的儲量。與碳納米管相比,硅鋁酸鹽納米管具有價廉易得、無毒無害以及良好的生物相容性等優(yōu)點(diǎn),已受到廣泛研究者們的青睞,在催化材料、有機(jī)/無機(jī)雜化材料、生態(tài)環(huán)境材料、生物醫(yī)藥材料和仿生材料等各領(lǐng)域都已有應(yīng)用。受其應(yīng)用領(lǐng)域的擴(kuò)展與發(fā)展,其天然儲量已不能滿足發(fā)展的需求。因此,探索開發(fā)人工合成硅鋁類納米管,尤其是源于天然礦為原料的合成工藝具有重要的實(shí)際價值。本課題針對已有的人工合成路線進(jìn)行了系統(tǒng)分析,尋找出影響人工合成硅鋁類納米管效率的關(guān)鍵因素,提出了相應(yīng)的改進(jìn)方案;并因此制備了系列的硅鋁類納米管,研究了制備條件及改性處理對人工合成硅鋁類納米管結(jié)構(gòu)及脫硫性能的影響規(guī)律。研究發(fā)現(xiàn)新制備方案成功合成了硅鋁類納米管并有效的縮短了制備周期,該方案合成的硅鋁納米管與天然納米管并無明顯差異,具有良好的均一性和較大的長徑比;改性實(shí)驗(yàn)發(fā)現(xiàn)改性后高嶺土納米管的脫硫性能有明顯的提高。其最好效果達(dá)到了脫硫率75.82%,比原高嶺土納米管提高30.27%的實(shí)驗(yàn)效果。成功合成了伊毛縞石納米管,對其結(jié)構(gòu)性能做了初步探索,其管徑約為1nm左右,管長約為幾微米�？疾炝似錈岱�(wěn)定性,發(fā)現(xiàn)合成伊毛縞石納米管熱穩(wěn)定性較差,250℃左右管狀結(jié)構(gòu)基本被破壞。并對其做了脫硫性能測試,脫硫結(jié)果表明合成伊毛縞石納米管的脫硫性能要好于高嶺土納米管。
[Abstract]:Eroxite nanotubes and Imaurite nanotubes belong to natural silica-aluminum nanotubes, and they have certain reserves in nature. Compared with carbon nanotubes, aluminosilicate nanotubes have many advantages, such as low cost, innocuity and good biocompatibility. They have been favored by many researchers, such as catalytic materials, organic / inorganic hybrid materials, ecological materials, etc. Biomedical materials and biomimetic materials have been used in various fields. Due to the expansion and development of its application field, its natural reserves can no longer meet the needs of development. Therefore, it is of great practical value to explore and develop synthetic silicon and aluminum nanotubes, especially those derived from natural ore. In this paper, the existing synthetic routes are systematically analyzed, the key factors affecting the efficiency of synthetic Si-Al nanotubes are found out, and the corresponding improvement schemes are put forward, and a series of Si-Al nanotubes are prepared. The effects of preparation conditions and modification treatment on the structure and desulfurization properties of synthetic Si-Al nanotubes were studied. It is found that the new preparation scheme successfully synthesized Si-Al nanotubes and effectively shortened the preparation period. The Si-Al nanotubes synthesized by the new scheme have no obvious difference from natural nanotubes and have good homogeneity and larger aspect ratio. It was found that the desulfurization performance of modified kaolin nanotubes was improved obviously. The best effect is 75.82%, which is 30.27% higher than that of kaolin nanotubes. The structure and properties of Imaurite nanotubes were successfully synthesized. The diameter of the nanotubes was about 1nm and the length of the nanotubes was about several microns. The thermal stability of synthetic chimerite nanotubes was investigated, and it was found that the tubular structure was basically destroyed at about 250 鈩，

本文編號：1909236