一种新型 Zn MOFs 作为多功能灵敏化学传感器,用于快速检测硝基芳香族化合物、四环素、Fe3+ 和甲基橙的降解情况

IF 2.7 3区 化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR Inorganica Chimica Acta Pub Date : 2024-09-12 DOI:10.1016/j.ica.2024.122381
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引用次数: 0

摘要

快速检测环境中的污染物具有重要意义。在这项工作中,基于富含 π 电子的三角形配体 TPPA(TPPA=三(4-(吡啶-4-基)苯基)胺,H2L=2,3-二氢噻吩并[3,4-b][1,4]二噁烷-5,7-二羧酸),合成了一种新型 MOF,即[Zn(TPPA)(L)]n (1)。化合物 1 是一个 3 层互穿(3,5)连接的三维框架。光致发光研究表明,1 的发射来自配体之间的电荷转移转变(π → π*)。1 具有优异的发光性能,可用作硝基芳香族化合物(NAC)、有毒金属离子和抗生素的多功能化学传感器,并且反应迅速。此外,1 还具有在可见光区域降解甲基橙(MO)的光催化活性,并且在光催化过程中性能稳定。通过对 NAC 和抗生素能带的密度泛函理论(DFT)计算,发现光诱导电子传递(PET)机制是 NAC 感测的主要原因,这为有效检测 NAC 和抗生素提供了理论依据。PET 机制和共振能量转移在盐酸四环素(TCH)的专属传感中发挥了重要作用。
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A novel Zn MOFs as a multifunctional sensitive chemical sensor for the rapid detection of nitroaromatic compounds, Tetracycline, Fe3+, and degradation for methyl orange

The rapid detection of pollutants in the environment is of great significance. In this work, a novel MOF, namely [Zn(TPPA)(L)]n (1) has been synthesized based on a π-electron rich triangular ligand TPPA (TPPA=tris(4-(pyridin-4-yl)phenyl)amine and H2L=2,3-dihydrothieno[3,4-b][1,4]dioxine-5,7-dicarboxylic acid). Compound 1 is a 3-fold interpenetrating (3,5)-connected 3D framework. Photoluminescence studies indicate that the emission of 1 result from the charge transfer transition between ligands (π → π*). 1 with excellent luminous performance can be applied as a multi-functional chemical sensor for nitroaromatic compounds (NACs), toxic metal ions and antibiotics, and quick response. In addition, 1 exhibits photocatalytic activity for the degradation of methyl orange (MO) in the visible regions and is stable during the photocatalysis process. The effective detection of NACs and antibiotics was rationalized by density functional theory (DFT) calculation of the energy bands of NACs and antibiotics, which revealed that photoinduced electron transfer (PET) mechanism is largely responsible for the sensing of NACs. PET mechanism and resonance energy transfer play significant roles in the exclusive sensing of tetracycline hydrochloride (TCH).

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来源期刊
Inorganica Chimica Acta
Inorganica Chimica Acta 化学-无机化学与核化学
CiteScore
6.00
自引率
3.60%
发文量
440
审稿时长
35 days
期刊介绍: Inorganica Chimica Acta is an established international forum for all aspects of advanced Inorganic Chemistry. Original papers of high scientific level and interest are published in the form of Articles and Reviews. Topics covered include: • chemistry of the main group elements and the d- and f-block metals, including the synthesis, characterization and reactivity of coordination, organometallic, biomimetic, supramolecular coordination compounds, including associated computational studies; • synthesis, physico-chemical properties, applications of molecule-based nano-scaled clusters and nanomaterials designed using the principles of coordination chemistry, as well as coordination polymers (CPs), metal-organic frameworks (MOFs), metal-organic polyhedra (MPOs); • reaction mechanisms and physico-chemical investigations computational studies of metalloenzymes and their models; • applications of inorganic compounds, metallodrugs and molecule-based materials. Papers composed primarily of structural reports will typically not be considered for publication.
期刊最新文献
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