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一种简单,高效和快速的方法来从废水中去除染料,使用IDA-GO@Fe₃O₄磁性纳米复合材料

Amir Abdolmaleki¹, Zahra Mohamadi², Zahra Bazyar³

¹Department of Chemistry, College of Sciences, Shiraz University Shiraz 71467-13565 Iran abdolmaleki@shirazu.ac.ir abdolmaleki@iut.ac.ir +98-71-3613-7310 +98-71-3613-7187.

|September 3, 2024

概括

一种新型磁性纳米复合材料,即胺基酸功能化石墨烯氧化物 (IDA-GO@Fe3O4),可以有效地从废水中去除阴离子和阴离子染料. 这种吸附剂表现出高容量和出色的可回收性,用于环境修复.

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:

染料和织行业的废水对环境和健康构成风险.
有效地去除染料污染物对于水净化至关重要.

研究的目的:

合成和表征一个磁性响应的 iminodiacetic 酸功能化石墨烯氧化物 (IDA-GO@Fe3O4) 纳米复合材料.
评估其在废水中吸附阴离子和阴离子染料的效率.

主要方法:

IDA-GO@Fe3O4纳米复合物的合成.
使用XRD,SEM,FT-IR,TGA和BET分析进行表征.
吸附性研究研究pH值,度,吸附剂剂量和接触时间.

主要成果:

IDA-GO@Fe3O4纳米复合材料表现出高热稳定性和负电荷表面.
甲蓝 (MB) 去除的最佳条件是pH10和160分钟,产生437.10毫克g-1容量.
甲基色 (MO) 去除的最佳条件是pH2和120分钟,产生165.65毫克g-1容量.
吸附遵循伪二次动力学和兰格穆尔异热模型.
纳米复合材料在5个循环中显示出极好的可回收性,用于MB去除.

结论:

IDA-GO@Fe3O4纳米复合物是一种高度有效的吸附剂,既适用于阴离子和阴离子染料.
吸附机制涉及静电相互作用,H键和π-π相互作用.
这种磁性纳米复合材料为高效的废水净化和环境修复提供了有前途的解决方案.

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