Semirigid Highly Conjugated Zirconium–Organic Framework for the Capture of Micropollutants and Solar-Light Photodegradation,Inorganic Chemistry

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Semirigid Highly Conjugated Zirconium–Organic Framework for the Capture of Micropollutants and Solar-Light Photodegradation
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2023-06-01 , DOI: 10.1021/acs.inorgchem.3c00365
Yongchun Wang ₁ , Xiang Li ₁ , Xusheng Zhou ₁ , Panqi Song ₂ , Muling Zeng ₃ , Wenhui Shang ₁ , Yan-Qing Xu ₁ , Zhiyu Jia ₁ , Guo-Yu Yang ₁

Affiliation

Micro-organic pollutants, particularly organic dyes and personal care products (PPCPs), are widely present in wastewater, and thus pose a serious risk to human health. The capture and solar-light photodegradation of micro-organic pollutants are highly challenging tasks, which require the design and synthesis of microporous materials with specific structures. As we know, organic dyes and PPCPs can be absorbed via π–π* stacking. In this paper, an iron-based metal–organic framework (Fe-UiO-68-terNap) containing semirigid conjugated aromatic ligands is prepared for the capture and solar-light photodegradation of multiple water contaminants. UiO-68-terNap was synthesized based on ternaphthalene with π–π* stacking, which would increase the adsorption capacities of organic micropollutants in wastewater. Additionally, the formation of Fe–O–Zr enhances the charge-separation ability resulting in the successful degradation of micropollutants in 240 min. The novel material has been elucidated by single-crystal X-ray diffraction and Fe K-edge XANES, which provide key insights at a molecular level for the design of novel materials for the capture and photodegradation of organic micropollutants.

中文翻译：

用于捕获微污染物和太阳光光降解的半刚性高度共轭锆有机框架

微生物污染物，特别是有机染料和个人护理产品 (PPCP)，广泛存在于废水中，因此对人类健康构成严重威胁。微生物污染物的捕获和日光光降解是极具挑战性的任务，需要设计和合成具有特定结构的微孔材料。正如我们所知，有机染料和 PPCP 可以通过 π–π* 堆积被吸收。在本文中，制备了一种含有半刚性共轭芳族配体的铁基金属有机骨架 (Fe-UiO-68-terNap)，用于多种水污染物的捕获和日光光降解。UiO-68-terNap 是基于具有 π-π* 堆积的三萘合成的，这将增加废水中有机微污染物的吸附能力。此外，Fe-O-Zr 的形成增强了电荷分离能力，导致微污染物在 240 分钟内成功降解。这种新型材料已通过单晶 X 射线衍射和 Fe K 边 XANES 进行了阐明，它们在分子水平上为设计用于捕获和光降解有机微污染物的新型材料提供了关键见解。

更新日期：2023-06-01

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