粘土矿物质/酸盐/聚乙烯水凝吸附剂控制的选择性吸附和减少:实验优化和蒙特卡洛模拟研究
Jingjie Yang1, Jianan Nie2, Liang Bian3
1State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China; Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China.
Journal of hazardous materials
|February 24, 2024
概括
这项研究开发了使用粘土矿物质和天然聚合物的新型水凝吸附剂,以有效地去除. 这些材料具有很高的吸附能力和选择性,为整治提供了有前途的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 地质化学 地质化学
背景情况:
- 粘土矿物对深层地质储存至关重要,但由于充电竞争和低矿化能力,延迟面临挑战.
- 从水溶液中有效地去除对于环境保护和核废物管理至关重要.
研究的目的:
- 开发新的,稳定的,基于矿物质的凝吸附剂,用于 (VI) 的去除.
- 通过减少和矿化来研究协同吸附机制和固定.
主要方法:
- 使用蒙莫里隆石,非石,贝德利石,藻酸盐和聚乙烯制备水凝吸附剂 (Mt/PE-@SA,Nt/PE-@SA,Bd/PE-@SA).
- 使用批量实验评估的吸附能力和选择性.
- 使用循环电压测量和蒙特卡洛动力学模拟对固定机制的分析.
主要成果:
- 水凝吸附剂表现出的选择性吸附和矿化.
- 非托尼特基水凝 (Nt/PE-@SA) 的最大吸附能力为133.3 mg·g−1.1.
- 蒙特卡洛模拟证实了 ((VI) 和水凝吸附剂之间的强烈相互作用,支持高吸附效率.
结论:
- 开发的水凝吸附剂为从水性环境中去除提供了稳定有效的战略.
- 甲基酸盐和聚乙烯对粘土矿物的协同作用增强了的吸附和固定.
- 这项研究为复杂环境中的整治提供了新的视角.
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