具有pcu拓扑的光活性3D mof用于荧光传感和光催化应用

IF 3.7 2区 化学 Q2 CHEMISTRY, APPLIED
Yu Qiao, Zhuo Wang, Xiangxin Xue, Juan Jian, Peng Wang, Lina Zhao, Jinghui Shi, Guangfu Liao
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引用次数: 0

摘要

由于结构要求的竞争,集成荧光传感和光催化功能的金属有机框架(MOFs)的构建仍然具有挑战性。本文报道了由5-(1H四唑-5-酰基)间苯二甲酸(H3L)配体(式[Zn2L(H2O)3]n⋅nNO3 (Zn2L- mof -1)和[Pb2L(OH)(H2O)]n⋅nH2O (Pb2L- mof -2)组成的两种新型基团有机骨架的合成、光谱和晶体学表征。单晶x射线分析表明,Zn2L-MOF-1通过两个对称的金属中心和L3 -配体的四唑体形成无限三维网络结构和双互穿pcu拓扑结构。Pb2L-MOF-2进一步通过L3 -配体与自由水分子之间的氢键形成三维超分子结构。Zn2L-MOF-1可作为一种高效的多功能荧光材料,用于金属阳离子Pb2+、Hg2+和硝基苯(NB)的高灵敏度检测。最小检测限(LOD)可达10−7m−1。此外,Pb2L-MOF-2作为光驱动催化剂用于四环素(TC)抗生素的光降解,在140 min内的光降解率为90.16%。通过实验和分子轨道理论的综合分析,解释了mof可能的传感和光催化机理。这项工作建立了光活性3D MOFs作为环境监测和修复的双重用途材料,具有拓扑相关的特性调制提供了新的设计范例。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Photoactive 3D MOFs With pcu Topology for Fluorescence Sensing and Photocatalytic Applications

Metal–organic frameworks (MOFs) integrating fluorescence sensing and photocatalytic functions remain challenging to construct due to competing structural requirements. Herein, we report the synthesis, spectral and crystallographic characterization of two novel group organic skeletons composed of 5-(1H tetrazol-5-yl) isophthalic acid (H3L) ligand (formula [Zn2L(H2O)3]n⋅nNO3 (Zn2L-MOF-1) and [Pb2L(OH)(H2O)]n⋅nH2O (Pb2L-MOF-2). Single crystal X-ray analysis shows that Zn2L-MOF-1 forms an infinite three-dimensional network structure and a double interpenetrating pcu topology through two symmetrical metal centers and a tetrazolium of L3− ligand. Pb2L-MOF-2 further forms a three-dimensional supramolecular structure through hydrogen bonding between L3− ligand and free water molecules. Zn2L-MOF-1 can be used as an efficient multifunctional fluorescent material for the high sensitivity detection of metal cations Pb2+, Hg2+ and nitrobenzene (NB). The minimum limit of detection (LOD) can reach 10−7 M−1. In addition, Pb2L-MOF-2 was used as a light-driven catalyst for the photodegradation of tetracycline (TC) antibiotics, with a photodegradation rate of 90.16% within 140 min. The possible sensing and photocatalytic mechanism of MOFs is explained through the comprehensive analysis of experiment and molecular orbital theory. This work establishes photoactive 3D MOFs as dual-purpose materials for environmental monitoring and remediation, with topology-dependent property modulation offering new design paradigms.

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来源期刊
Applied Organometallic Chemistry
Applied Organometallic Chemistry 化学-无机化学与核化学
CiteScore
7.80
自引率
10.30%
发文量
408
审稿时长
2.2 months
期刊介绍: All new compounds should be satisfactorily identified and proof of their structure given according to generally accepted standards. Structural reports, such as papers exclusively dealing with synthesis and characterization, analytical techniques, or X-ray diffraction studies of metal-organic or organometallic compounds will not be considered. The editors reserve the right to refuse without peer review any manuscript that does not comply with the aims and scope of the journal. Applied Organometallic Chemistry publishes Full Papers, Reviews, Mini Reviews and Communications of scientific research in all areas of organometallic and metal-organic chemistry involving main group metals, transition metals, lanthanides and actinides. All contributions should contain an explicit application of novel compounds, for instance in materials science, nano science, catalysis, chemical vapour deposition, metal-mediated organic synthesis, polymers, bio-organometallics, metallo-therapy, metallo-diagnostics and medicine. Reviews of books covering aspects of the fields of focus are also published.
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