Progress and opportunities for metal–organic framework composites in electrochemical sensors

Zhang, Wanqing; Li, Xijiao; Ding, Xiaoman; Ke, Hua; Sun, Aili; Hu, Xinxin; Nie, Ziwei; Zhang, Yongsheng; Wang, Jichao; Li, Renlong; Liu, Shanqin

doi:10.1039/d3ra00966a

Cited by 20 publications

(3 citation statements)

References 144 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Metal-organic frameworks (MOFs) are hybrid materials composed of both organic linkers and inorganic metal nodes, and have been extensively used to construct electrochemical sensors ( Kajal et al, 2022 ). MOFs possess special active sites and many advantages due to their controllable structure, high specific surface area, good stability, and tailored functionalities ( Zhang et al, 2023 ; Junior et al, 2024 ). The composition of organic and inorganic components can be adjusted to control the structure and performances of MOFs, enhancing their sensing capabilities, e. g., by incorporating specific functional groups for target recognition to realize selective detection of target analytes ( Liu et al, 2020 ; Chang et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Construction of porphyrinic manganese-organic frameworks based on structural regulation for electrochemical determination of nitrobenzene in water and vegetable samples

Wang,

Zhang,

et al. 2024

Front. Chem.

View full text Add to dashboard Cite

Nitrobenzene (NB) is one of the major organic pollutants that has seriously endangered human health and the environment even in trace amounts. Therefore, it is of great significance to detect trace NB efficiently and sensitively. Herein, a porphyrinic metal-organic framework (MOF) of Mn-PCN-222 (PCN, porous coordination network) was first synthesized by the coordination between Zr6 cluster and tetrakis (4-carboxyphenyl)-porphyrin-Mn (Ⅲ) (MnTCPPCl) ligand. To regulate its structure and the electrochemical properties, a phenyl group was inserted in each branched chain of TCPP to form the TCBPP organic ligand. Then, we used Zr6 clusters and manganese metalloporphyrin (MnTCBPPCl) to synthesize a new porphyrin-based MOF (Mn-CPM-99, CPM, crystalline porous material). Due to the extended chains of TCPP, the rod-shaped structure of Mn-PCN-222 was switched to concave quadrangular bipyramid of Mn-CPM-99. Mn-CPM-99 exhibited higher porosity, larger specific surface area, better electrochemical performances than those of Mn-PCN-222. By using modular assembly technique, Mn-CPM-99 film was sequentially assembled on the surface of indium-tin-oxide (ITO) to prepare an electrochemical sensor (Mn-CPM-99/ITO). The proposed sensor showed excellent electrochemical reduction of NB and displayed three linear response ranges in the wide concentration ranges. The obtained low limit of detection (LOD, 1.3 nM), high sensitivity and selectivity, and good reproducibility of the sensor for NB detection fully illustrate that Mn-CPM-99 is an excellent candidate for electrochemical sensor interface material. Moreover, the sensor was successfully applied to the detection of NB in lake water and vegetable samples showing satisfactory recovery of 98.9%–101.8%.

show abstract

Section: Introductionmentioning

confidence: 99%

Construction of porphyrinic manganese-organic frameworks based on structural regulation for electrochemical determination of nitrobenzene in water and vegetable samples

Wang,

Zhang,

et al. 2024

Front. Chem.

View full text Add to dashboard Cite

show abstract

“…Metal-organic frameworks (MOFs), a subset of coordination polymers, are a class of coordination networks with both organic ligands and potential pores ( Falsafi et al, 2021 ; Kajal et al, 2022 ). In comparison with other inorganic porous materials, such as zeolites, porous silica, and carbon materials, MOFs possess some unique structural advantages, including structural diversity, huge specific surface area, and high porosity, abundant unsaturated metal sites and good biocompatibility ( Liu C.-S. et al, 2020 ; Çorman et al, 2022 ; Zhang W. et al, 2023 ). Based on these attractive structural and performance advantages, MOFs have attracted many researchers to investigate the structural features and functions of MOFs and explore their potential applications in gas adsorption, multiphase catalysis, drug delivery, biomedical imaging, and chemical sensing ( Lu et al, 2018 ; Lin et al, 2020 ; Bag et al, 2021 ; Kumari et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Metal-organic frameworks/metal nanoparticles as smart nanosensing interfaces for electrochemical sensors applications: a mini-review

Min

Liao

Liu

et al. 2023

Front. Bioeng. Biotechnol.

View full text Add to dashboard Cite

Metal-organic frameworks (MOFs) are porous materials with huge specific surface area and abundant active sites, which are composed of metal ions or clusters and organic ligands in the form of coordination bonds. In recent years, MOFs have been successfully applied in many fields due to their excellent physical, chemical, and biological properties. Electrochemical sensors have advantages such as economy, portability, and sensitivity, making them increasingly valued in the field of sensors. Many studies have shown that the electrode materials will affect the performance of electrochemical sensors. Therefore, the research on electrode materials is still one of the hotspots. MOFs are also commonly used to construct electrochemical sensors. However, electrochemical sensors prepared from single MOFs have shortcomings such as insufficient conductivity, low sensitivity, and poor electrochemical catalytic ability. In order to compensate for these defects, a new type of nanocomposite material with very ideal conductivity was formed by adding metal nanoparticles (MNPs) to MOFs. The combination of the two is expected to be widely applied in the field of sensors. This review summarizes the applications of various MNPs/MOFs composites in the field of electrochemical sensors and provides some references for the development of MNPs/MOFs composites-based electrochemical sensors in the future.

show abstract

“…In addition, different kinds of sensors, such as chemical, biological and optical sensors, have been developed to detect heavy metals. These sensors are based on ultraviolet‐visible absorption, fluorescence emission, electrochemical or colorimetric processes 23–27 . The various novel devices and materials not only exhibit the accuracy, precision and sensitivity required for detection, they also have much more advantages of low cost, simplicity, efficiency and miniaturisation.…”

Section: Introductionmentioning

confidence: 99%

Molecular imprinting of cellulose cotton fabric/silica materials with a colorimetric dithizone chelation for smartphone‐based detection of Zn (II) ions in water samples

Chheang,

Sriwiriyarat,

Thanasupsin

et al. 2023

Coloration Technology

View full text Add to dashboard Cite

Molecularly imprinted materials based on imprinting of dithizone‐Zn (II) complexes (DTZ‐Zn (II)) on the cotton fabric/silica, and Color Grab application for OPPO A54 were proposed and applied for the first time to detect Zn (II) ions in water samples. The proposed materials were prepared by using cotton fabrics as cellulosic materials, tetraethoxysilane (TEOS) as silica sources, and DTZ‐Zn (II) as template molecules. The initial concentration of DTZ and Zn (II), volume of TEOS and reaction time were optimized to obtain the maximum adsorption of the DTZ‐Zn (II) complexes in the imprinted materials. The concentrations of HCl and extraction time were optimized to obtain the maximum Zn (II) removal. The results were found that a 10 mL of a solution containing DTZ (0.20 mM) and Zn (II) (0.30 mM), a 25 μL of TEOS, and 10 min of reaction time exhibited the strong binding of template complexes. Zn (II) ions were selectively removed from the materials by using 0.1 M HCl for 10 min. The morphology of the prepared materials was characterized by SEM‐EDS and ATR‐FTIR spectroscopy. The smartphone based the cotton fabric/silica materials exhibited linear relationship between saturation (%) and Zn (II) concentrations in the range of 0.1 to 1.0 mg/L, with limit of detection (LOD) of 0.02 mg/L and limit of quantification (LOQ) of 0.06 mg/L. The proposed method was successfully applied to determine Zn (II) in real water samples with the % recovery ranging from 98‐115 and the acceptable relative standard deviation less than 6 (n =3).This article is protected by copyright. All rights reserved.

show abstract

Progress and opportunities for metal–organic framework composites in electrochemical sensors

Abstract: Metal–organic framework composites have the advantages of large surface area, high porosity, strong catalytic efficiency and good stability, which provide a great possibility of finding excellent electrode materials for electrochemical sensors.

Cited by 20 publications

References 144 publications

Construction of porphyrinic manganese-organic frameworks based on structural regulation for electrochemical determination of nitrobenzene in water and vegetable samples

Construction of porphyrinic manganese-organic frameworks based on structural regulation for electrochemical determination of nitrobenzene in water and vegetable samples

Metal-organic frameworks/metal nanoparticles as smart nanosensing interfaces for electrochemical sensors applications: a mini-review

Molecular imprinting of cellulose cotton fabric/silica materials with a colorimetric dithizone chelation for smartphone‐based detection of Zn (II) ions in water samples

Contact Info

Product

Resources

About