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埃洛石纳米管是有广泛应用前景的新型纳米管材料,利用煅烧和酸处理等方法对埃洛石纳米管进行改性,研究改性后埃洛石纳米管表面结构对其吸附脱硫性能的影响,并利用X射线衍射(XRD)、红外光谱(FTIR)和扫描电子显微镜(SEM)等手段进行表征和分析。研究发现,埃洛石纳米管热稳定性较高,高温煅烧后仍然保持其管状结构,随着煅烧温度的增加其羟基含量减少,脱硫性能改变。酸处理在一定程度上增加了煅烧后埃洛石纳米管的羟基含量,酸处理后样品的脱硫效果随羟基含量的增加而增加。因此表明埃洛石纳米管羟基含量是影响其脱硫效果的重要因素。
Haematite nanotube is a new type of nanotube material with wide application prospect. Heteropoulter nanotube is modified by calcination and acid treatment to study its adsorption desulfurization performance on the surface of the modified halloysite nanotube. And characterized by X-ray diffraction (XRD), infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The study found that the halloysite nanotubes higher thermal stability, high temperature calcined still retain its tubular structure, with the calcination temperature increases its hydroxyl content decreased, the desulfurization performance changes. The acid treatment increased the hydroxyl content of the halloysite nanotubes to a certain extent, and the desulfurization effect of the acid treated samples increased with the increase of the hydroxyl content. Therefore, the hydroxyl content of halloysite nanotube is an important factor affecting the desulfurization effect.