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使用氧化碳织物从水溶液中去除放射性核素

Ioannis Ioannidis¹, Ioannis Pashalidis¹, Batuhan Mulla²

¹Department of Chemistry, University of Cyprus, P.O. Box 20537, Nicosia 1678, Cyprus.

Materials (Basel, Switzerland)

|December 9, 2023

概括

碳织物有效地从水中吸附 (Am(III)) 和 (U(VI)) 离子. 吸附效率随着温度的增加而增加,这表明一种内热的,由驱动的去除动因子的过程.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
放射化学放射化学是指辐射化学.

背景情况:

像美 (Am(III)) 和 (U(VI)) 这样的动因酸离子在受污染的水中构成重大环境风险.
开发高效,具有成本效益的材料来去除活性化物对于环境修复至关重要.

研究的目的:

研究 (III) 和 (VI) 在原始和氧化碳面料上的吸附.
评估pH值,温度和水矩阵组成对吸附效率的影响.

主要方法:

批量吸附实验在不同的pH值 (4,7,9) 和温度 (25,35,45°C) 进行.
分析了吸附动力学和热力学参数.
在模拟的海水中评估了碳织物的性能.

主要成果:

在最佳条件下,碳织物表现出Am(III) (70%) 和U(VI) (100%) 的高去除效率.
(U ((VI)) 的分布系数 (log10 ((Kd) 值为2-3) 比美国 (Am ((III)) 的分布系数 (log10 ((Kd) 值为1.5-2) 高.
吸附是一种内热,由驱动的过程,随着温度的增加而增加.

结论:

碳织物是从水溶液中获得Am (III) 和U (VI) 的有效吸附剂.
虽然海水矩阵组件降低了效率,但碳织物仍然显示出显著的去除率 (50% Am(III),90% U(VI)).
这些材料对处理化物污染的水具有前途.

关键词:

Am-241是什么意思 Am-241是什么意思这种U-232是U-232的.氧化碳织物氧化碳织物氧化碳织物放射性物质是指放射性的物质.放射性核化物去除的方法处理水处理水的方法

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