一种磁性可回收的碳酸功能化酸盐复合物,用于有效地从废水中去除甲基色:异热,动力学,热力学和吸附机制
Qingqing Wang1, Xiaoli Jia1, Mingchao Jin1
1Key Laboratory of Interface Science and Engineering in Advanced Materials Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, PR China.
International journal of biological macromolecules
|September 2, 2023
概括
通过结合Fe3O4微球,奇托和二甲胺五酸 (DTPA) 来创建一种新的磁性可回收吸附剂,以有效地去除染料. 这种吸附剂在废水处理中表现出高吸附能力和稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 纳米技术纳米技术
背景情况:
- 废水中的染料污染对环境构成重大挑战.
- 开发高效和可回收的吸附剂对于可持续的水处理至关重要.
- 和Fe3O4纳米粒子为吸附剂开发提供了有前途的特性.
研究的目的:
- 为了合成和描述一种新的磁性可回收吸收剂.
- 为了研究合成的材料的吸附性能为甲基色 (MO).
- 探索吸附剂的吸附机制和再生能力.
主要方法:
- 合成复合吸附剂通过将二乙二胺五酸 (DTPA) 接种在Fe3O4微球和交联酸 (CS) 上.
- 微观结构,分子结构,晶体结构和磁性质的表征.
- 批量吸附实验以确定MO吸附的最佳参数,动力学和异温模型.
主要成果:
- 通过DTPA移植的Fe3O4/CS复合物与共价键的成功合成得到证实.
- 与未经修改的吸附剂 (1104.1 mg·g-1) 相比,改性吸附剂的和吸附能力显著更高 (1541.5 mg·g-1).
- 吸附遵循伪二阶动力学和兰迈尔等温,表明自发吸附与静电相互作用和结合作为主要机制.
结论:
- 合成的磁性可回收吸附剂在去除甲基色方面表现出色.
- 吸附剂在广泛的pH范围内是稳定的,可重复的和有效的,特别是在酸性条件下.
- 这种材料有可能在工业染料废水处理中实际应用.
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