银负载树枝状二氧化硅吸附甲巯咪唑的研究

Adsorption of Methimazole on Silver-loaded Dendritic Silica

以正硅酸乙酯为硅源,采用水热法制备了树枝状纤维型二氧化硅KCC-1。以KCC-1为载体,通过直接浸渍法在其表面负载了银纳米(Ag NPs)颗粒,以扫描电子显微镜(SEM)、X射线衍射仪、红外、氮气吸附脱附等手段对产物进行表征。结果表明,合成的材料Ag NPs/KCC-1表面的银质量分数为19.78%。制备的Ag NPs/KCC-1对甲巯咪唑有良好的选择性吸附性能。

In this paper,using ethyl orthosilicate as the silicon source,dendritic fiber silica KCC-1 was prepared by hydrothermal method.Using KCC-1 as a carrier,nano silver(Ag NPs)particles are loaded on the surface by direct immersion method.And the scanning electron microscope(SEM),X-ray diffractometer,infrared,nitrogen adsorption and desorption Instrument and other were used to characterize the product to explore its structure and nano-silver loading.The results showed that Ag NPs/KCC-1 was successfully synthesized,and its surface silver mass fraction was 19.78%.The prepared Ag NPs/KCC-1 was used to adsorb methimazole in the solution,and showed good adsorption capacity.