用离子印制的奇托,没有交叉结合剂,用于从稀土溶液中有效选择性吸附Al (III)
Dan Ding1, Jingzhong Kuang2,1, Weiquan Yuan3
1School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Kejia Road 156, Ganzhou 341000, Jiangxi, China. kjz692@163.com.
Analytical methods : advancing methods and applications
|February 6, 2024
概括
这项研究介绍了一种简单的热水制方法,用于制造离子印制酸盐 (IIP-CS),以实现高效的Al (III) 吸附. 新型IIP-CS材料具有很高的选择性和能力,可以从稀土溶液中去除微量Al (III).
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 分析化学 分析化学
背景情况:
- 离子印制材料提供选择性离子吸附,但通常具有复杂的制备和高交叉连接剂的使用.
- 在稀土加工中,有效地去除微量 (Al(III)) 是至关重要的.
研究的目的:
- 开发一种简单的,无交叉连接剂的方法,用于制备离子印制奇托 (IIP-CS).
- 评估IIP-CS在从稀土水溶液中吸附微量Al (III) 的效率和选择性.
主要方法:
- 为了制备IIP-CS,使用了一步的热水合成.
- 用FT-IR,SEM和XRD进行了表征.
- 吸附实验调查了制剂比率,pH值和条件的影响,使用同热和动力模型进行分析.
主要成果:
- 最佳的IIP-CS制剂在pH3时需要3:1的比率.
- 在Langmuir异温和伪二次动力模型中,最大的吸能力达到了40.36mg/g.
- 对于Al (III) 超过La (III),Y (III) 和Gd (III) 的高选择性系数被观察到 (792.50,163.26,55.16).
结论:
- 开发的IIP-CS是一种高度选择性和高效的吸附剂,用于去除痕迹Al (III).
- 胺基复合物形成机制驱动了Al (III) 的吸附.
- IIP-CS表现出优异的再生和选择性吸附性能,适用于水溶液.
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