开发和评估修酸盐修饰/离子印制的奇托,用于选择性去除 (III) 离子
Majed S Aljohani1, Rua B Alnoman1, Hussam Y Alharbi1
1Chemistry Department, Faculty of Science, Taibah University, Yanbu, Saudi Arabia.
Carbohydrate polymers
|December 23, 2023
概括
这项研究使用离子印记技术开发了基于素的新型微粒,用于选择性去除离子 (Ce3+). 合成的Ce-TSCS吸附剂显示出高容量和选择性,可以有效地从废水中去除.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 聚合物化学 聚合物化学
背景情况:
- (Ce3+) 是一种具有越来越多工业应用的稀土元素.
- 从水性废水中有效地去除Ce3+对于环境保护至关重要.
- 为Ce3+开发选择性和高效的吸收材料是一个持续的挑战.
研究的目的:
- 为了合成和表征修饰酸盐化 (TSCS) 微粒.
- 开发离子印制TSCS (Ce-TSCS) 吸附剂,用于选择性去除离子.
- 研究Ce-TSCS对Ce3+的吸附能力,动力学和机制.
主要方法:
- 通过乙化和化衍生物的基酸盐修饰,以引入硫酸盐化单元.
- 使用Ce3+的离子打印技术在TSCS微粒中创建特定的结合点.
- 吸附实验用于评估容量,选择性,动力学 (伪二阶模型) 和异温体 (朗穆尔模型).
- 进行XPS和FTIR分析以阐明吸附机制.
主要成果:
- 合成的Ce-TSCS微粒对Ce3+具有164±1mg/g的高吸附能力.
- 由于离子印记过程,Ce-TSCS在Ce3+去除方面表现出卓越的选择性.
- 吸附遵循伪二阶动力学和兰格穆尔等热法,表明通过化进行化学吸附.
- XPS和FTIR证实了Ce3+与 -NH-, -NH2和 -SH组的协调.
结论:
- 离子印制的Ce-TSCS微粒是有效的和选择性的吸附剂,用于清除离子.
- 开发的材料为处理受污染的水性废水提供了有希望的解决方案.
- 这项研究为设计用于有针对性的重金属去除的先进吸收材料提供了新的方向.
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