摘要
采用Y分子筛作为吸附剂,分别使用扫描电子显微镜（SEM）和X-射线衍射（XRD）对其进行结构进行表征,并研究其对亚甲基蓝的吸附性能.表征结果表明Y分子筛的晶型和骨架结构良好,粒径范围为0.5~0.8μm.吸附实验结果表明亚甲基蓝在Y分子筛上的吸附动力学符合伪二级动力学模型,吸附等温线符合Freundlich模型;吸附随着温度升高而变强,溶液的p H值和Na＋强度对吸附过程存在较大影响.
The Y-zeolites were characterized by scanning electron microscope （SEM） and X-ray diffraction （XRD）. Then the adsorption of MB on Y-zeolites was investigated. Adsorption kinetic of MB on Y-zeolite could be well described by the pseudo-second order kinetic model. Adsorption experimental results show that the data could be fitted by the Freundlich equations and that the adsorption increases with increasing temperature. The pH and Na^＋ ionic strength of the solution significantly affects the MB adsorption on Y-zeolite.
出处
《南京晓庄学院学报》
2015年第6期89-94,共6页
Journal of Nanjing Xiaozhuang University
基金
南京晓庄学院校级项目(2012NJX103)
江苏省高校自然科学研究面上项目(15KJB610010)
关键词
亚甲基蓝
Y分子筛
吸附
Methylene blue
Y-Zeolite
adsorption
