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合成磁性托尼特-凝水凝珠及其在Cu2+捕获中的应用

Qiang Shen¹, Tao Wu², Guo-Bang Zhang¹

¹Department of Materials Engineering, Huzhou University, Huzhou, 313000, China.

Environmental science and pollution research international

|November 24, 2023

概括

新的bentonite-gelatin珠子有效地从水中去除重金属离子. 磁性托尼特-凝珠显示铜离子的增强吸附能力,为环境修复提供了一个有前途的解决方案.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
化学化学化学

背景情况:

地下水和农田中的重金属离子对生态构成重大风险.
由于复杂的环境条件,传统的去除方法往往是无效的.

研究的目的:

合成和评估用于重金属离子去除的原生土酸 (RB-GT) 和磁性土酸 (MB-GT) 珠子.
使用这些新型珠子材料,研究Cu(II) 离子的吸附行为和机制.

主要方法:

简单的混合注射方法用于珠子合成.
批量吸附实验用于研究Cu (II) 离子吸收.
使用SEM,XRD,FTIR和XPS进行表征.
吸附异温和动力学研究 (Langmuir模型,伪二阶模型).

主要成果:

与RB-GT珠子相比,MB-GT珠子对Cu (II) 离子具有更高的吸附能力.
在1000 mg/L Cu度下,RB-GT的最大吸附能力达到192.5 mg/g,MB-GT的最大吸附能力达到236.5 mg/g.
吸附遵循兰格穆尔和伪二阶模型,表明化学吸附.

结论:

石-凝珠,特别是磁性变体,是Cu (II) 离子的有效吸附剂.
开发的珠子为从受污染的水源中去除重金属提供了可行的解决方案.
进一步的研究探讨了竞争性吸附和详细的机制.

关键词:

吸附方式吸附方式吸附方式铜铜铜铜铜铜凝是什么意思凝是什么意思水凝珠子的珠子磁性托尼特是一种磁性托尼特.

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