【摘要】 对蒙脱石进行复合改性,构建了新型纳米吸附材料AAN,分别从振荡时间、吸附剂用量、溶液pH、平衡温度几个方面研究了AAN对黄曲霉毒素B1、B2、G1、G2的吸附情况,确定了最佳吸附条件。结果表明AAN对黄曲霉毒素的吸附作用强,二者之间的吸附属于强化学吸附;吸附速度快,60min可以达到吸附平衡;解吸率低,小于10%。这些结果提示AAN作为一种新型纳米吸附剂,应用前景十分广阔。更多还原

【Abstract】 A new aflatoxin adsorbing nano-additive (AAN) was configured by modifying montmorillonite. The influence of shaking time, AAN amount, solution pH and equilibrium temperature on the adsorption of AAN for aflatoxins was studied and the optimal experiment term for adsorption was determined. The results showed that the adsorption of AAN for aflatoxins was strong and quick, the adsorption reached equilibrium after 60 min, the desorption rate of aflatoxins from AAN was low and less than 10%, which was a chemisorption process. These findings suggest that AAN, as a new nano-adsorbent, has promising prospects.更多还原