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纳米尺寸核心外磁性SO3H功能化共价有机框架通过一个功能缺陷策略的阴阳性染料净化:吸附行为和机制

Chuqiang Que¹, Hongwei Zhu¹, Chang Liu¹

¹School of Chemistry and Chemical Engineering, Harbin institute of technology, Harbin 150001, China.

Journal of hazardous materials

|August 15, 2025

概括

磁硫酸功能化共价有机框架 (Fe3O4@TpBD-SO3H COFs) 有效地从废水中去除像马拉绿和水晶紫色这样的阴阳性染料. 这种新型吸附剂具有高容量,选择性和可重复使用性,为工业废水处理提供了实用解决方案.

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:

织印刷和水产养殖的工业增长需要先进的染料废水处理方法.
像马拉绿 (MG) 和水晶紫 (CV) 这样的阴阳性染料带来了重大的环境挑战.
开发高效和选择性吸附剂对于减轻染料污染至关重要.

研究的目的:

合成磁硫酸功能化共价有机框架 (Fe3O4@TpBD-SO3H COFs) 用于染料废水处理.
为了研究Fe3O4@TpBD-SO3HCOF的吸附性能和机制,用于阴阳性染料.
评估材料的选择性,可重复使用性和在真实废水样本中的适用性.

主要方法:

合成Fe3O4@TpBD-SO3HCOFs使用功能缺陷策略与4-aminobenzene-1,3-disulfonic acid (ADSA) 进行合成.
在单元和二元系统中对MG和CV进行吸附实验,包括模型装配和动态竞争性吸附试验.
评估吸附能力,对阳离子染料的选择性,抗干扰性和再生性能.

主要成果:

Fe3O4@TpBD-SO3H COFs表现出多分子吸附,MG和CV的分子方向非平行.
获得了高吸附能力:1010.6mg/g的MG,在二进制系统中观察到协同和对抗效应.
该吸附剂表现出优异的选择性对阴离子染料,耐金属盐干扰,并稳定性能超过十个再生周期.

结论:

Fe3O4@TpBD-SO3H COF是有效的磁性纳米吸收剂,用于从废水中选择性去除阴离子染料.
该材料的水友性质和可调的吸附配置有助于其高性能.
在实际废水处理中成功应用突出了其在工业废水管理中的实际潜力.

关键词:

吸附机制是一种吸附机制.酸性染料是一种酸性染料.功能缺陷策略功能缺陷策略功能化的COF可以使用.磁分离器的磁性分离方式

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