From pollution to solution: Optimized UiO-66 based metal-organic framework for environmental cleanup

Next Nanotechnology Pub Date : 2026-06-01 Epub Date: 2025-12-10 DOI:10.1016/j.nxnano.2025.100333

Azieyanti Nurain Azmin , Pua Fei Ling , Halina Misran

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Abstract

Metal-organic framework (MOF) is known as an advanced material with high surface area and porosity and emerging for environmental remediation. In this study, a sustainable zirconium-based MOF, known as UiO-66 was synthesized using zirconium oxynitrate as a chloride-less metal precursor and organic linker from recycled polyethylene terephthalate (rPET). Synthesis parameters were optimized via Response Surface Methodology (RSM), and achieved the maximum BET surface area of 755 m²/g. To evaluate for microplastic removal, the UiO-66 were incorporated into polyvinylidene fluoride (PVDF)-based mixed-matrix membranes (MMM). The properties and characterizations including X-Ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM), X-Ray Photoelectron Spectroscopy (XPS), Raman Spectroscopy, and Brunauer-Emmett-Teller (BET) surface analysis, confirmed the structure and composition of the materials. Filtration test demonstrated up to 105 ± 0.57 % removal efficiency against polymethylmethacrylate (PMMA), act as microplastic suspension. This work presents a sustainable approach to convert plastic waste into functional MOF and offer a green and effective strategy for environmental cleanup applications.

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从污染到解决：优化的UiO-66基金属有机框架，用于环境净化

金属有机骨架（MOF）是一种具有高比表面积和高孔隙率的先进材料，在环境修复中崭露头角。本研究以再生聚对苯二甲酸乙二醇酯（rPET）为原料，以氧化锆为无氯金属前驱体和有机连接剂，合成了一种可持续的锆基MOF UiO-66。通过响应面法（RSM）对合成参数进行优化，得到最大BET表面积为755 m2/g。为了评估微塑料去除效果，将UiO-66掺入聚偏氟乙烯（PVDF）基混合基质膜（MMM）中。通过x射线衍射（XRD）、场发射扫描电子显微镜（FESEM）、x射线光电子能谱（XPS）、拉曼光谱（Raman）和布鲁诺尔-埃米特-泰勒（BET）表面分析等表征手段，证实了材料的结构和组成。过滤试验表明，对微塑料悬浮液聚甲基丙烯酸甲酯（PMMA）的去除率高达105 ± 0.57 %。本研究提出了一种将塑料垃圾转化为功能性MOF的可持续方法，并为环境清理应用提供了一种绿色有效的策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Next Nanotechnology

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