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从真实样本中提取高容量的酸盐,使用基金属有机框架装饰了二四

Sayed Ali Akbar Razavi¹, Elham Habibzadeh¹, Ali Morsali¹

¹Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, P.O. Box 14117-13116,Tehran 1411613117,Islamic Republic of Iran.

ACS applied materials & interfaces

|February 28, 2024

概括

功能化的金属有机框架 (Zr-MOFs) 显示出从水中去除酸盐的能力很高. 这种新型材料为有效的水净化和环境监测应用提供了有希望的解决方案.

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:

金属有机框架 (Zr-MOFs) 具有可调节的孔隙性和稳定性,使其适用于水净化.
链接器功能化增强了Zr-MOF在环境应用中的性能,包括污染物去除和监测.

研究的目的:

开发一种功能化的Zr-MOF,以有效地从水中去除酸盐.
在真实水样中研究功能化材料的吸附机制和性能.

主要方法:

合成后链接器交换 (PSLE) 用于使UiO-66 (((Zr)) 与二二基组功能化,从而产生UiO-66 (((Zr) -DHTZ.
进行了吸附实验,以确定UiO-66 (((Zr) -DHTZ的酸盐去除能力和效率.
采用X射线光电子光谱 (XPS) 和富里埃变换红外线 (FTIR) 来阐明去除机制.

主要成果:

在pH 7下,UiO-66 (((Zr) -DHTZ具有高酸盐吸附能力,在pH 7下达到583毫克-1的酸盐吸附能力,显著优于未经修改的UiO-66 (((Zr)).
功能化材料在复杂矩阵中保持了高吸附能力 (220 mg g-1),并降低了酸盐水平低于检测极限.
移除机制涉及二基和酸盐物种之间的键.

结论:

用二四素功能化的UiO-66 (Zr) 显示出在酸盐去除方面具有卓越的性能,这表明其在实际水处理方面的潜力.
这种功能化的Zr-MOF在开发污染水资源的高效吸附剂方面取得了重大进展.

关键词:

酸 (AsO43−) 是一种二四氨酸二四氨酸宿主-客人的化学反应通过气结合,形成了气结合.金属有机框架 (Zr-MOFs) 是一种

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