迪尔斯-阿尔德可点击的 furan-thiosemicarbazide纤维素用于选择性 (III) 印记
Majed S Aljohani1, Rua B Alnoman1, Hussam Y Alharbi1
1Chemistry Department, Faculty of Science, Taibah University, Yanbu, Saudi Arabia.
International journal of biological macromolecules
|February 18, 2024
概括
这项研究开发了一种基于纤维素的新型吸附剂,用 furan-thiosemicarbazide (FTC) 进行修改,以有效地去除离子 (Ru3+). 由此产生的Ru3+离子印制吸附剂 (Ru-II-CE) 具有很高的选择性和污染废水的净化能力.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 吸附科学 吸附科学
背景情况:
- 废水中 (Ru3+) 离子污染对环境构成风险,并阻碍了资源回收.
- 开发有选择性和高效的吸附剂对于解决Ru污染至关重要.
研究的目的:
- 合成和描述一种基于纤维素的新型吸附剂,用于选择性去除Ru3+离子.
- 评估开发的废水处理吸附剂的吸附性能和机制.
主要方法:
- 用 furan-thiosemicarbazide (FTC) 修改纤维素,并与 bis (maleimido) 乙烯 (BME) 进行交叉链接,以产生 Ru3+ 离子印记吸附剂 (Ru-II-CE).
- 使用NMR,FTIR和扫描电子显微镜 (SEM) 进行表征.
- 吸附实验以确定选择性,最佳pH值,吸附能力,等温和和运动模型.
主要成果:
- Ru-II-CE吸附剂对Ru3+离子表现出强烈的亲和力和选择性,而不是其他金属离子.
- 在pH 5下达到最佳吸附,吸附能力高215mg/g.
- 吸附数据与Langmuir异热模型和伪二阶动力模型相匹配.
结论:
- 由FTC修改的基于纤维素的离子印记吸附剂 (Ru-II-CE) 是一个有希望的材料,用于从废水中有针对性地去除Ru.
- 这种方法为重金属净化和潜在的资源回收提供了有效的解决方案.
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