SiO_2纳米纤维的制备及其对亚甲基蓝染料的吸附性能

Preparation and adsorption property on methylene blue of SiO_2 nanofiber

以溶胶-凝胶法为基础,通过静电纺丝方法制备PVP/SiO2复合纳米纤维膜,经600℃高温煅烧得到SiO2纳米纤维膜;利用扫描电子显微镜(SEM)观察了SiO2纳米纤维膜的结构形貌;傅里叶变换红外光谱(FT-IR)证实了SiO2纳米纤维的形成;通过X射线衍射(XRD)对SiO2纳米纤维的晶型及晶粒大小进行了分析。通过对其亚甲基蓝染料的吸附,研究了SiO2纳米纤维膜的吸附性能。结果表明制备的SiO2纳米纤维形貌稳定,并对亚甲基蓝染料具有良好的吸附性能。

PVP/Si2 composite nanofiber was prepared through electrospinning methods based on the sol-gel mean od. Then, the SiO2 nanofiber was prepared by calcinating PVP/SiO2 composite nanofibers at 600℃. The structural morphology of PVP/SiO2 nanofiber was characterized by SEM. The composition and crystal structure of SiO2 nanofiber were analyzed by FT-IR spectra and XRD. The adsorption properties of SiO2 nanofibers membrane were studied through adsorpting methylene blue dye. The experimental results indicated that the SiO2 nanofiber had stable morphology and good adsorption performance on methylene blue dye.