吸附
海泡石
蒙脱石
黄曲霉毒素
弗伦德利希方程
粘土矿物
化学
化学工程
环境化学
矿物学
有机化学
食品科学
工程类
原材料
作者
Yan Li,Guangyan Tian,Linlin Gong,Bin Chen,Lingpeng Kong,Jinsheng Liang
标识
DOI:10.1016/j.jece.2020.104052
摘要
Sepiolite (Sep) has been widely used as adsorbents to adsorb various contaminants, owing to its low cost, abundant reserve, and high adsorption capacity. However, the comparative study about the effect of source of Sep on the adsorption properties remains a gap to be filled. Herein, a comparative study about the effect of source of Sep on the adsorption of aflatoxin B1 (AFB1) was performed. Three Sep samples from Henan, Hunan and Hebei Provinces of China were selected as adsorbents for adsorbing AFB1. The adsorption capacity of Sep from Henan was higher than other samples. The presence of montmorillonite in Sep from Henan plays an important role in adsorption of AFB1, owing to ion-dipole interactions between AFB1 molecules and montmorillonite. The adsorption equilibrium data conform to Freundlich model. Kinetic of AFB1 adsorption follow the pseudo-second-order kinetic. The AFB1 molecules not only cover the surface of the rods but also enter the channels.
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