从水溶液中有效和有选择地去除离子,使用2,5-二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二
Menghua Ma1, Rui Chen1, Lu Feng2
1West Anhui University, Liuan 237012, People's Republic of China.
International journal of biological macromolecules
|August 11, 2023
概括
一种新的改性酸盐材料 (DMTD-CS) 显示出异常的 (Hg) 清除能力. 这种吸附剂具有很高的选择性和可回收性,为减轻污染提供了有效的解决方案.
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:
- 污染是一个重大的环境问题.
- 开发高效的吸附剂材料对于整治至关重要.
- 基于酸盐的材料由于其特性而具有潜力.
研究的目的:
- 为了合成和表征一种新的修饰基托材料 (DMTD-CS).
- 评估DMTD-CS.的Hg(II) 吸附能力,选择性和可回收性.
- 为了阐明高吸附性能背后的机制.
主要方法:
- 使用奇托,2,5-二二二二和甲的DMTD-CS的一合成.
- 使用BET分析,FT-IR和XPS等技术进行材料表征.
- Hg(II) 吸附实验,以确定吸附能力,动力学和等热度.
- 在其他金属离子和可回收性评估的存在下进行选择性测试.
主要成果:
- DMTD-CS 具有较高的特定表面积 (126.91 m2/g) 和高孔积 (0.6702 cm3/g).
- 最大Hg(II) 吸附能力在318K时达到628.09mg/g,超过未经修改的奇托和衍生品.
- 吸附遵循伪二次动力学和兰木尔异温,对Hg的选择性很高 (II) 和六个周期后80.06%的去除.
结论:
- DMTD-CS是一种高效且可回收的吸附剂,用于去除.
- 涉及O,N和S原子的协同复合有助于高吸附能力.
- 这种材料为解决污染问题提供了一个有前途的解决方案.
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