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Zn/Cr-MOFs/TiO₂复合材料作为吸附剂,用于去除利沃素化物

Fuhua Wei¹, Qin Zhang¹, Qinhui Ren¹

¹College of Chemistry and Chemical Engineering, Anshun University, Anshun 561000, China.

Molecules (Basel, Switzerland)

|September 28, 2024

概括

/-金属-有机框架/二氧化 (Zn/Cr-MOFs/TiO2) 复合材料有效地从废水中去除利沃素化物. 这些新型材料具有高吸附能力和效率,为制药污染物清除提供了有前途的解决方案.

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:

像勒沃素化物这样的药物是持续性环境污染物.
从废水中有效地去除抗生素对于生态系统健康至关重要.
金属有机框架 (MOF) 为污染物吸附提供可调节的结构.

研究的目的:

为了合成和描述Zn/Cr-MOFs/TiO2复合材料.
研究这些复合物的吸附性能,以从废水中去除利沃素化物.
分析吸附动力学和异热量,以了解去除机制.

主要方法:

Zn/Cr-MOFs/TiO2复合物的溶热合成.
使用X射线衍射 (XRD),里埃变换红外光谱 (FTIR) 和扫描电子显微镜 (SEM) 的表征.
批量吸附实验,以评估在不同条件下 (pH,温度,初始度,吸附剂剂量) 的去除效率和容量.

主要成果:

这种Zn/Cr-MOFs/TiO2复合物在pH值为6.0时,对于levofloxacin化的最大去除效率为88.8%.
最大吸附能力达到了246.3mg/g.
吸附数据最适合伪二阶动力学模型和兰迈尔等温法,表明单层吸附.

结论:

Zn/Cr-MOFs/TiO2复合物是废水中利沃素化物的有效吸附剂.
吸附过程遵循伪二阶动力学和兰格穆尔等热法,表明一种化学吸附机制.
这些发现突显了基于MOF的复合材料在处理药物污染水的潜力.

关键词:

MOFs 的使用情况.吸附吸附是一种吸附.抗生素抗生素是一种抗生素.复合材料复合材料是一种复合材料.

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